Premium V-Belt Drives

Transcription

1 A L T R A I N D U S T R I A L O T I O N Premium VBelt Drives

2 TB Wood's TB Wood s is an industry leading designer and manufacturer of mechanical power transmission equipment for industrial control. Our mechanical product lines include: clutch and brake, synchronous and belted variable speed drives; grid, disc, jaw, gear coupling and elastomeric coupling products; sheaves and bushings. Registered trademarks include Surelex Plus, Duralex, Glex, and SureGrip. TB Wood s was founded in 857 and began as a foundry producing wood burning stoves. Our company s tradition of product innovation started early. TB Wood s entered the power transmission industry at the turn of the century with the introduction of flat belted drives and line shafting. VISIT US ON TH WB AT TBWOODS.CO Altra Industrial otion Altra is a leading global designer and manufacturer of quality power transmission and motion control products utilized on a wide variety of industrial drivetrain applications. Altra clutches and brakes, couplings, gearing and PT component product lines are marketed under the industries most well known manufacturing brands. ach brand is committed to the guiding principles of operational excellence, continuous improvement and customer satisfaction. Highlyengineered Altra solutions are sold in over 7 countries and utilized in a variety of major industrial markets, including food processing, material handling, packaging machinery, mining, energy, automotive, primary metals, turf and garden and many others. Altra s leading brands include Ameridrives, Bauer Gear otor, Bibby Turboflex, Boston Gear, Delroyd Worm Gear, ormsprag Clutch, Guardian Couplings, Huco, Industrial Clutch, Inertia Dynamics, Kilian, Lamiflex Couplings, arland Clutch, atrix, Nuttall Gear, Stieber, Stromag, Svendborg Brakes, TB Wood s, Twiflex, Warner lectric, Warner Linear and Wichita Clutch. VISIT US ON TH WB AT ALTRAOTION.CO

3 The Premium Advantage Premium Vbelts can handle.4 to. times more horsepower than the equivalent size standard Vbelt. So you can design a more compact drive that weighs less, puts less strain on costlier components, and uses fewer belts as shown in the following example. STANDARD 6 Strand 5V drive; Rated HP/Strand: 3.9 Total weight: 65 lbs. PRIU 3 Strand 5VP drive; Rated HP/Strand: 66.8 Total weight: 53 lbs. The Premium belt difference is in the construction Clutching nonrubber surfaced cover Allows momentary slippage due to excessive overloads without burning belts up KVLAR* or aramid tensile cords Give extraordinary strength, durability and virtually zero stretch Virtually zero stretch liminates the need for constant belt retensioning Chloroprene rubber compounds Provide superb oil and heat resistance Speciallytreated extra tough cover Withstands slip and shear forces at peak loads without generating excessive heat; fends off penetration by foreign materials Curve design Compensate for effects such as sidewall bulge, which occur when belts bend around a sheave. This yields uniform loading, giving maximum belt life and even wear on the sheave sidewalls (eliminates dishing) Double fabric cover Creates maximum abrasion resistance that protects against wear caused by fine airborne dust in rock quarries and lumber mills, which can cause rapid belt sidewall wear resulting in early failures Over 5 percent more horsepower than standard VBelts nables new equipment designers to utilize the full loadcarrying capacity of these highperformance belts *Kevlar is a registered trademark of Dupont P93TBW TOC

4 Table Of Contents Section Pages BP Narrow Premium Drives Sure Grip Sheaves...3 UltraV Sheaves...4 VBelt eatures.... Single and Banded Belts Drive Selection...56 Balancing Standards Drive Selection/Drive Design Horsepower Ratings....3 BP Classical Premium Drives Sure Grip Sheaves... Classical Sheaves....3 VBelt eatures.... Classical VBelts.... Drive Selection...35 Balancing Standards APR Belts Horsepower Ratings...89 BPR Belts Horsepower Ratings... CPR Belts Horsepower Ratings....3 Sure Grip Bushings (Inch Hardware) Standard QD L langeless Short QD Type... Tensioners for Idlers.... Idler Bushings Installation Instructions TOC P93TBW

5 Narrow (PremiumV) Sheaves BP or Tough Applications P93TBW /5 BP

6 SureGrip Narrow (UltraV) Sheave eatures Wood s UltraV sheaves are constructed of fine grain, high tensile cast iron, and have been carefully engineered to assure maximum performance over a long life span. Behind each sheave is one of the most extensive engineering design and testing programs in the industry. With the advent of higher Vbelt ratings, Wood s engineers instituted additional careful test programs to ensure that each Wood s sheave would be capable of safely and dependably delivering the increased performance which was required by the new ratings. Wood s engineers, using a special strain gage test stand, subject sheaves to tension and compression stresses far in excess of those encountered in actual operation. In another standard test procedure, Wood s sheaves are operated at extremely high speeds. Sheaves are selected from warehouse stocks and tested until they are burst by centrifugal force. Such destructive testing allows Wood s engineers to study the effects of construction and balance on sheave performance. The goal is to assure safe operation at normal speeds. Other continuing programs check product quality in the laboratory and on the manufacturing line. or applications with special requirements, Wood s sheaves are also available on a madetoorder basis in either cast or ductile iron, and in SureGrip or boredtosuit construction. Wood s stock narrow sheaves are available with the convenient SureGrip QD type bushing. asy to install and remove, these split, tapered bushings grip the shaft with the equivalent of a shrink fit. This tight holding power eliminates freezing and fretting corrosion between the shaft and the bore and assures quick removal and interchangeability when necessary. We cast or stamp the maximum safe operating speed, in rpm, on all sheaves we manufacture. BP P93TBW /5

7 STANDARD GROOV DINSIONS Narrow (UltraV) Sheave Dimensions A W B T ANGL C Belt GROOV DINSIONS IN INCHS A B C W T U 3V /3 3/ Angle of Groove Used on O.D. Under to to.., Over OD PD U 5V / / Under.. to 6. 6., Over 8V Under to.4.4, Over STANDARD AV AC WIDTHS Belt or ach Additional Groove Add 3V /6* 3/3 / 9/3 3/3 3 37/3 3 4/3 4 55/3 59/6 53/3 6 65/3 73/6 79/3 3/3 5V /6 3/6 3 47/6 5 53/6 6/ 73/6 77/8 89/6 9/4 9 /6 /6 8V** / 3 47/ /4 9 / 37/ /4 8 97/8 * or.6 to 3.9 outside diameters face width =. or outside diameters 4. and over face width = 3/6. ** Sheaves 6 grooves and over have additional metal added to overall face width. DP GROOV DINSIONS Belt A B C W T U 3V / V 9/6 3/ V 7/ Angle of Groove Used on O.D. Under to to.., Over Under.3.3 to , Over Under to.9.9, Over DP GROOV AV AC WIDTHS Belt or ach Additional Groove Add 3V /4 /4 3 4/4 4 5/4 5 6/4 6 7/4 7 8/4 8 9/4 / 5V 33/6 4 53/6 6 63/6 7 87/6 9/4 /6 7/8 /6 / /6 8V / /4 93/6 7/8 3/6 3/ 43/6 6 77/6 8 /6 /6 4 P93TBW /5 BP3

8 Stock Narrow (UltraV) Sheaves 3V Dimensions These sheaves are designed to carry the loads of all belts shown in this catalog and other similarly rated VBelts. or special higher rated VBelts, consult Wood s ngineering Department for recommendations. The sheaves listed below are all stock sizes. The dimensions given are with the SureGrip bushings in place. When ordering, specify the bushing, if required, and the bore size. The figure following the letter in the Type column indicates the sheave construction: Solid, Web, 3 Arms. DINSIONS (In Inches) O.D. I.D. GROOV GROOV * = /6 = 3/3 Bush. Type K L Wt. Bush. Type K L Wt V 3V35 3V5 3V65 3V8 A A A A A D D 9/3 9/3 9/3 3/3 3/3 7/6 7/6 7/6 /6 /6 9/3 9/3 9/3 3/3 3/ V 3V35 3V5 3V65 3V8 A A A A A D D /3 /3 7/6 7/6 7/6 9/3 9/3 9/3 7/6 7/ V3 3V35 3V3.35 3V365 3V4 A A A D D D C C 3/3 3/3 3/3 9/6 9/6 /6 /6 /6 /4 /4 3/3 3/3 3/ V3 3V35 3V3.35 3V365 3V4 A A D D D D D /3 /3 7/6 7/6 /4 /4 /4 /4 7/6 7/6 9/3 9/3 3/ V45 3V475 3V5 3V53 3V56 C C C C C 9/6 9/6 9/6 9/6 9/6 /4 /4 /4 /4 / V45 3V475 3V5 3V53 3V56 D D D D D /4 /4 /4 /4 /4 /4 /4 /4 /4 /4 3/3 3/3 3/3 3/3 3/ V6 3V65 3V69 3V8 3V6 S S C C C C 9/6 9/6 9/6 /4 /4 /4 / V6 3V65 3V69 3V8 3V6 S S S D D D D /4 5/3 /4 /4 7/8 3/3 3/3 3/3 3/ V4 3V9 /3 /3 7/8 7/8 /3 / V4 3V9 3V5 S 5/3 5/3 7/6 /4 /4 /4 7/8 7/8 5/ * = for.6 inches O.D. = 3/6 for 4. inches and 9. inches O.D. O.D. I.D. 3 GROOV 4 GROOV = / = 9/3 Bush. Type K L Wt. Bush. Type K L Wt V53 3V653 3V83 3V33 3V353 A A A 3/3 7/3 7/3 3/6 3/6 7/6 /4 /4 9/3 /3 / V654 3V84 3V34 3V354 A A /4 /4 9/3 9/3 /4 /4 /3 / V V3653 3V43 3V453 3V4753 S S D D 7/6 7/6 /6 /6 /6 /6 /6 /4 /4 /4 /6 / V V3654 3V44 3V454 3V4754 S S D D 7/6 7/6 /4 3/6 3/6 3/6 3/6 3/6 /4 /4 /4 3/3 3/3 /3 3/3 3/ V53 3V533 3V563 3V63 3V653 S S S S S A /6 /6 /6 /6 /6 /6 /6 /6 /6 / V54 3V534 3V564 3V64 3V654 S S S D D 3/6 3/6 3/6 3/3 3/3 3/6 3/6 3/6 7/8 7/8 3/3 3/3 3/ V693 3V83 3V63 3V43 3V93 S S A D /6 5/3 5/3 5/3 7/6 /6 /4 /4 /4 /4 7/8 7/8 7/8 3/3 3/3 3/3 / V694 3V84 3V64 3V44 3V94 S D D 3/3 3/3 3/3 3/3 /6 7/8 7/8 7/8 7/8 / V53 3V3353 S S 7/6 7/6 /4 /4 /6 / V54 3V3354 S /6 3/3 / / P.D. = O.D. Recommended for use with Narrow Cog belts only. Weights for all SureGrip bushed items are approximate and include the bushing. BP4 P93TBW /5

9 Stock Narrow (UltraV) Sheaves 3V Dimensions DINSIONS (In Inches) O.D. I.D. 5 GROOV 6 GROOV = = 3/3 Bush. Type K L Wt. Bush. Type K L Wt V4755 3V55 3V535 3V565 3V65 S S 3/6 3/6 7/3 7/3 7/3 3/6 3/6 7/8 7/8 7/8 3/6 3/6 7/3 7/3 7/ V4756 3V56 3V536 3V566 3V66 7/6 7/6 9/3 9/3 9/3 7/8 7/8 7/8 7/8 7/8 9/3 9/3 /4 /4 / V655 3V695 3V85 3V65 3V45 S A 7/3 7/3 7/3 7/3 3/6 7/8 7/8 7/8 7/8 7/8 7/3 7/3 7/3 7/ V656 3V696 3V86 3V66 3V46 S S A 9/3 9/3 5/3 3/6 3/6 7/8 7/8 7/8 7/8 7/8 7/8 /4 /4 /6 7/3 7/ V95 3V55 3V3355 S 3/6 9/3 9/3 7/8 /3 / V96 3V56 3V3356 3/3 3/3 3/ O.D. I.D. 8 GROOV GROOV = 37/3 = 4/3 Bush. Type K L Wt. Bush. Type K L Wt V4758 3V58 3V538 3V568 3V68 /4 /4 9/3 9/3 9/3 7/8 7/8 7/8 7/8 7/8 9/3 9/3 /6 /6 / V475 3V5 3V53 3V56 3V6 3/6 3/6 3/3 3/3 3/3 7/6 7/6 7/6 7/8 7/8 7/8 7/8 7/8 9/3 9/ V658 3V698 3V88 3V68 3V48 S S 9/3 9/3 7/6 7/6 /3 /4 7/8 7/8 /6 /6 3/3 3/3 9/ V65 3V69 3V8 3V6 3V4 S A 3/3 3/3 3/6 /3 /3 7/6 7/6 / /4 /4 7/8 7/8 7/ V98 3V58 3V3358 /3 /3 /4 /4 /6 3 9/6 9/6 3/ V9 3V5 3V335 /3 /4 /4 / /3 5/ u P.D. = O.D. Weights for all SureGrip bushed items are approximate and include the bushing. K O. D. I. D. L O. D. I. D. L O. D. I. D. L O. D. I. D. L O. D. I. D. L K K K K Type A Type B Type C Type D Type P93TBW /5 BP5

10 Stock Narrow (UltraV) Sheaves 5V Dimensions These sheaves are designed to carry the loads of all belts shown in this catalog and other similarly rated VBelts. or special higher rated VBelts, consult Wood s ngineering Department for recommendations. The sheaves listed below are all stock sizes. The dimensions given are with the SureGrip bushings in place. When ordering, specify the bushing, if required, and the bore size. The figure following the letter in the Type column indicates the sheave construction: Solid, Web, 3 Arms. DINSIONS (In Inches) O.D I.D V44 5V465 5V49 5V5 5V55 GROOV 3 GROOV = /6 = Bush. Type K L Wt. Bush. Type K L Wt. S S S S 3/6 /6 /6 /6 /6 3/6 /6 /6 /6 /4 7/ V443 5V4653 5V493 5V53 5V553 S S S S S /6 /6 7/6 7/6 7/6 /6 /6 / V59 5V63 5V67 5V7 5V75 S D D D D /6 9/3 9/3 9/3 9/3 /6 7/6 7/6 7/6 7/6 7/8 7/8 7/8 7/8 3/3 3/3 3/3 3/ V593 5V633 5V673 5V73 5V753 S S S 7/6 /3 /3 /6 /6 /6 7/8 7/8 5/3 5/3 /6 / V8 5V85 5V9 5V95 5V975 D D D D 9/3 9/3 9/3 9/3 9/3 7/6 7/6 7/6 7/6 7/6 7/8 7/8 7/8 7/8 7/8 3/3 3/3 3/3 3/3 3/ V83 5V853 5V93 5V953 5V9753 S S S S S A A /6 /6 /6 /6 / V3 5V9 5V3 5V8 5V5 S 9/3 9/3 9/3 9/3 /4 7/6 7/6 7/6 7/6 7/6 7/8 7/8 7/8 7/8 3/3 3/3 3/3 3/3 / V33 5V93 5V33 5V83 5V53 S S S S A A 5/3 /6 /6 /6 /6 3/ V3 5V4 5V5 5V6 5V87 S S S S S /4 /4 /4 /4 /4 7/6 7/6 7/6 7/6 7/6 /6 /6 /6 /6 / V33 5V43 5V53 5V63 5V873 5/3 5/3 5/3 5/3 5/3 3/3 3/3 3/3 3/3 3/ V 5V36 5V8 S /4 5/3 5/3 7/6 /6 5/3 5/ V3 5V363 5V83 5V353 5V3753 5V53 5/3 5/3 5/3 / / / 9/6 9/6 9/ /3 3/3 3/ O.D. I.D. 4 GROOV 5 GROOV = 3/6 = 3 Bush. Type K L Wt. Bush. Type K L Wt V444 5V4654 5V494 5V54 5V554 7/8 7/8 /6 /6 /6 3/6 3/6 3/6 3/6 3/6 9/6 9/6 9/ V445 5V4655 5V495 5V55 5V555 9/6 9/6 /6 /6 /6 3/6 3/6 3/6 3/6 3/6 /4 /4 / V594 5V634 5V674 5V74 5V754 S S /6 9/3 9/3 /6 /6 3/6 7/8 7/8 9/6 9/3 9/3 /6 / V595 5V635 5V675 5V75 5V755 S S S 9/3 9/3 /6 /6 7/8 7/8 9/3 9/3 /6 / V84 5V854 5V94 5V954 5V9754 B B B B B 7/3 7/3 7/3 7/3 7/3 7/6 7/6 7/6 7/6 7/6 3/3 3/3 3/3 3/3 3/ V85 5V855 5V95 5V955 5V9755 A 7/3 7/3 7/3 7/3 7/3 9/3 9/3 9/3 9/3 9/ V34 5V94 5V34 5V84 5V54 B B B B 7/3 7/3 7/3 7/3 7/3 7/6 7/6 7/6 7/6 7/6 3/3 3/3 3/3 3/3 3/ V35 5V95 5V35 5V85 5V55 A A A A 7/3 7/3 7/3 7/3 7/3 9/3 9/3 9/3 9/3 9/ V34 5V44 5V54 5V64 5V874 7/3 7/3 7/3 7/3 /3 7/6 7/6 7/6 7/6 /4 3/3 3/3 3/3 3/3 3/ V35 5V45 5V55 5V65 5V875 7/3 7/3 7/3 7/3 /4 3 9/3 9/3 9/3 9/ V4 5V364 5V84 5V354 5V3754 5V54 /3 3/6 3/6 3/6 3/6 9/6 /4 7/8 7/8 7/8 7/8 / / 3/3 7/ V5 5V365 5V85 5V355 5V3755 5V55 /4 /4 /4 /4 /4 / / 4/ 4/ / / / up.d. = O.D. Recommended for use with 5VX Narrow Cog belts only. Weights for all SureGrip bushed items are approximate and include the bushing. BP6 P93TBW /5

11 Stock Narrow (UltraV) Sheaves 5V Dimensions DINSIONS (In Inches) O.D. I.D. 6 GROOV 7 GROOV = 47/6 = 5 Bush. Type K L Wt. Bush. Type K L Wt V446 5V4656 5V496 5V56 5V556 /6 /6 /6 3/6 3/6 3/6 3/6 3/ V596 5V636 5V676 5V76 5V756 S S S 9/3 9/3 7/8 7/8 3/3 3/3 / / / V77 5V757 S S 3/6 3/ V86 5V856 5V96 5V956 5V9756 3/3 3/3 3/3 3/3 3/3 3/3 3/3 3/3 3/3 3/ V87 5V857 5V97 5V957 5V9757 3/3 3/3 3/3 3/3 3/3 3/3 3/3 3/3 3/3 3/ V36 5V96 5V36 5V86 5V56 A A A A B 3/3 3/3 3/3 3/3 /6 3 3/3 3/3 3/3 3/3 3/ V37 5V97 5V37 5V87 5V57 B B B B B / / / / / 9/6 9/6 9/6 9/6 9/ V36 5V46 5V56 5V66 5V876 B B /4 /6 /6 /6 / /6 3/6 3/6 3/6 9/ V37 5V47 5V57 5V67 5V877 B B / / / / /4 9/6 9/6 9/6 9/ / V6 5V366 5V86 5V356 5V3756 5V56 /4 /6 /6 /6 /6 3/3 / 3 4/ 4/ 4/ 4/ 6 9/6 / V7 5V367 5V87 5V357 5V3757 5V57 /6 /6 /6 /6 5/3 3/3 / 4/ 4/ 4/ 4/ 6 6 9/6 9/6 9/6 9/6 3/3 / up.d. = O.D. Recommended for use with 5VX Narrow Cog belts only. Weights for all SureGrip bushed items are approximate and include the bushing. O. D. I. D. L O. D. I. D. L O. D. I. D. L O. D. I. D. L K K K K Type A Type B Type C Type D P93TBW /5 BP7

12 Stock Narrow (UltraV) Sheaves 5V Dimensions DINSIONS (In Inches) O.D. I.D. 8 GROOV 9 GROOV = 53/6 = 6/ Bush. Type K L Wt. Bush. Type K L Wt V78 5V758 5V88 5V858 5V98 S S 7/6 7/6 9/3 9/3 9/3 / / / 9/3 9/3 9/ V89 5V859 5V99 9/3 9/3 9/3 / / / 9/3 9/3 9/ V958 5V9758 5V38 5V98 5V38 / / / / / 9/6 9/6 9/6 9/6 9/ /6 /6 /6 /6 / V959 5V9759 5V39 5V99 5V39 / / / / / 9/6 9/6 9/6 9/6 9/ V88 5V58 5V38 5V48 5V58 A A A A / / / / / 9/6 9/6 9/6 9/6 9/ /6 /6 /6 /6 / V89 5V59 5V39 5V49 5V59 A A A A B / / / / 9/6 9/6 9/6 9/6 39/ / V68 5V878 5V8 5V368 5V88 / 9/6 9/6 9/6 9/6 9/6 3 4/ 4/ 4/ 4/ / V69 5V879 5V9 5V369 5V89 5/3 39/6 9/6 9/6 9/6 4/ 4/ 4/ 4/ 6 /6 /6 /6 3/ V358 5V3758 5V58 5/3 5/3 5/ /3 3/3 3/ V359 5V3759 5V59 5/3 5/3 5/ /3 3/3 3/ O.D. I.D. GROOV = 73/6 Bush. Type K L Wt V8 5V85 5V9 5V95 5V975 /3 /3 /4 /4 / /3 7/ V3 5V9 5V3 5V8 5V5 A A /4 /4 /4 / / / V3 5V4 5V5 5V6 5V87 A A A 39/6 39/6 39/6 39/6 9/6 4/ 4/ 4/ 4/ 4/ V 5V36 5V8 5V35 5V375 5V5 5/3 5/3 5/3 5/3 5/3 9/6 4/ /3 /3 /3 /3 / P.D. = O.D. Weights for all SureGrip bushed items are approximate and include the bushing. BP8 P93TBW /5

13 Stock Narrow (UltraV) Sheaves 8V Dimensions These sheaves are designed to carry the loads of all belts shown in this catalog and other similarily rated VBelts. or special higher rated VBelts, consult TB Wood s ngineering Department for recommendations. The sheaves listed below are all stock sizes. The dimensions given are with the SureGrip bushings in place. When ordering, specify the bushing, if required, and the bore size. The figure following the letter in the Type column indicates the sheave construction: Solid, Web, 3 Arms. DINSIONS (In Inches) O.D. u I.D. 4 GROOV 5 GROOV = 47/8 = 6 Bush. Type K L Wt. Bush. Type K L Wt V54 8V34 8V44 8V54 8V64 A A A A 3/6 3/6 3/6 3/6 3/ V55 8V35 8V45 8V55 8V65 A A A A /4 /4 /4 /4 / V74 8V84 8V94 8V4 8V4 A A A 3/6 3/6 3/6 3/6 3/6 7/6 7/ / 4/ 3/6 3/ V75 8V85 8V95 8V5 8V5 A A A A A 4/ 4/ 4/ 4/ 4/ V44 8V484 8V34 8V3554 8V44 3/6 /3 /3 /3 /3 7/6 3/6 3/6 3/6 3/6 4/ /6 7/3 7/3 7/3 7/ V45 8V485 8V35 8V3555 8V45 B 5/3 5/3 5/3 5/3 5/ /3 7/3 7/3 7/3 7/ V4454 8V534 /3 /3 3/6 3/ /3 7/ V4455 8V535 N N u P.D. = O.D. Weights for all SureGrip bushed items are approximate and include the bushing. O. D. I. D. L O. D. I. D. L O. D. I. D. L K K K Type A Type B Type C P93TBW /5 BP9

14 Stock Narrow (UltraV) Sheaves 8V Dimensions DINSIONS (In Inches) O.D. u I.D. 6 GROOV 8 GROOV = 7 = 9 Bush. Type K L Wt. Bush. Type K L Wt V56 8V36 8V46 8V56 8V66 A A A A /4 /4 /4 9/6 9/ / 4/ /4 /4 / V58 8V38 8V48 8V58 8V68 A A A 39/6 39/6 39/6 39/6 39/6 4/ 4/ 4/ 4/ 4/ 9/6 9/6 9/6 9/6 9/ V76 8V86 8V96 8V6 8V6 A A A B B 5/3 5/3 9/6 9/6 9/6 4/ 4/ 4/ 6 6 3/3 3/ V78 8V88 8V98 8V8 8V8 A A A A A 5/3 5/3 5/3 5/3 5/ /3 5/3 5/3 5/3 5/ V46 8V486 8V36 8V3556 8V46 N N B 5/3 5/3 5/3 9/6 9/ /3 3/3 3/3 7/6 7/ V48 8V488 8V38 8V3558 8V48 N N N N A 5/3 9/6 9/6 9/6 9/6 3 /4 /4 /4 / /3 /6 /6 /6 / V4456 8V536 8V636 8V76 N N P P 9/6 9/ /6 7/ V4458 8V538 8V638 8V78 P P P W / O.D u I.D, No GROOV No GROOV = = 37/8 Bush. Type K L Wt. Bush. Type K L Wt V5 8V3 8V4 8V5 8V6 5/3 5/3 39/6 39/6 39/ / 4/ 4/ /6 43/6 43/6 3/3 3/ V5 8V3 8V4 8V5 8V6 5/3 5/3 5/3 5/3 5/ /3 4/3 4/3 4/3 4/ V7 8V8 8V9 8V 8V A A A A A 5/3 5/3 5/3 5/3 5/ /3 3/3 3/3 3/3 3/ V7 8V8 8V9 8V 8V N N N A A A A A 5/3 5/3 9/6 9/6 9/6 3 3 /4 /4 / /3 4/3 53/6 53/6 53/ V4 8V48 8V3 8V355 8V4 N N N P P A A 9/6 9/6 9/6 /4 /4 / / / V4 8V48 8V3 8V355 8V4 N N P P P A A 9/6 9/6 /4 / /6 53/ V445 8V53 8V63 8V7 P P W W 9 9 / / V445 8V53 8V63 8V7 P W W W 7/8 7/8 7/ /8 7/8 7/ u P.D. = O.D. Weights for all SureGrip bushed items are approximate and include the bushing. BP P93TBW /5

15 Narrow (PremiumV) VBelt eatures Narrow PremiumV belts have the highest power density of any Vbelt. and stretch dramatically less than standard cross sections. That s why they re ideal for use on problem drives requiring highimpact strength and loadcarrying power. Wood s Narrow Premium Vbelts have the same cross section dimensions as the corresponding Wood s Narrow UltraV belts and they meet RA oil and heat resistance standards VP 5 6 5VP 8VP All Premium V Belts are constructed with: Kevlar* or aramid tensile cords Give extraordinary strength, durability and virtually zero stretch Speciallytreated extra tough cover Withstands slip and shear forces at peak loads without generating excessive heat; fends off penetration by foreign materials Heavy duty double fabric cover Creates maximum abrasion resistance that protects against wear caused by fine airborne dust in rock quarries and lumber mills which can cause rapid belt sidewall wear resulting in early failures Narrow (PremiumV) Vbelts or applications when Banded belts are not an option. Single belts are specially designed for use on deep groove sheaves and drives with limited room for take up. Single belts should be length matched for multiple belt drives. Narrow (PremiumV) Banded Vbelts Replaces several belts with the strength of a single belt. Banded belts feature a multiple layer band that provide excellent lateral rigidity to prevent belts from turning over from coming off of the drive section. Warning: When incorporating TB Wood s PremiumV belts, it is important to evaluate the load capacity of UltraV sheaves. The exceptional strength of PremiumV belts, combined with tough application environments, may require extra heavyduty sheaves that can meet the challenge. TB Wood s can design and manufacture a full array of sheaves to meet the specific needs of your application. *Kevlar is a registered trademark of Dupont P93TBW /5 BP

16 Narrow (PremiumV) Belts Dimensions 5VP Single Belts 8VP Single Belts Belt Length Weight Lbs. 5VP VP VP VP VP..8 5VP VP..43 5VP VP VP VP VP VP VP Belt Length Weight Lbs. 5VP VP VP..55 5VP..7 5VP VP VP VP VP VP VP VP VP Belt Length Weight Lbs. 8VP VP VP VP VP VP. 7. 8VP VP VP VP VP8 8. 9,5 8VP VP VP VP VP Narrow (PremiumV) Banded Belts Belt Length Weight Lbs. Belt Length Weight Lbs. Belt Length Weight Lbs. Belt Length Weight Lbs. /3VP /3VP /3VP /3VP.56 3/3VP /3VP /3VP /3VP 3. 4/3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP8 8. /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP9 9.6 /3VP /3VP /3VP /3VP /3VP5 5.4 /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP5 5.4 /3VP /3VP /3VP /3VP /3VP7 7. 5/3VP /3VP3 3.6 /3VP /3VP7 7.6 /3VP.4 4/3VP /3VP /3VP /3VP.7 5/3VP /3VP /3VP /3VP.8 /3VP /3VP /3VP /3VP.86 3/3VP4 4.4 /3VP /3VP /3VP6 6. 4/3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP /3VP.8 3/3VP /3VP /3VP.9 Available up to strands. 6 strands made to order. BP P93TBW /5

17 Narrow (PremiumV) Belts 5VP Narrow (PremiumV) Banded Belts Dimensions Belt Length Weight Lbs. Belt Length Weight Lbs. Belt Length Weight Lbs. Belt Length Weight Lbs. /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP.8 /5VP /5VP /5VP /5VP 4.3 3/5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP 7.6 5/5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP7 7. /5VP 3.6 /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP 6.3 4/5VP /5VP /5VP /5VP 7.9 5/5VP /5VP3 3.7 /5VP /5VP /5VP 5.64 /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP.9 4/5VP /5VP /5VP /5VP 4. 5/5VP /5VP8 8.6 /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP 5.98 /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP.97 4/5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP /5VP Available up to 6 strands. 66 strands made to order. P93TBW /5 BP3

18 Narrow (PremiumV) Belts Dimensions 8VP Narrow (PremiumV) Banded Belts Belt Length Weight Lbs. Belt Length Weight Lbs. Belt Length Weight Lbs. Belt Length Weight Lbs. /8VP 6.95 /8VP /8VP /8VP VP.43 VP VP VP /8VP 3.9 4/8VP /8VP /8VP VP 7.39 VP VP VP /8VP /8VP /8VP /8VP VP6 6.6 VP VP VP /8VP /8VP /8VP /8VP VP VP VP VP /8VP 7.79 /8VP /8VP /8VP VP.68 VP VP VP /8VP /8VP /8VP /8VP VP 9.47 VP VP VP /8VP /8VP /8VP /8VP VP8 8.3 VP VP VP /8VP8 8 l6.4 4/8VP /8VP /8VP VP8 8.5 VP VP VP /8VP /8VP. 3.9 /8VP /8VP VP VP..86 VP VP /8VP /8VP /8VP /8VP VP VP VP VP /8VP /8VP /8VP /8VP VP VP.. VP VP /8VP /8VP /8VP /8VP VP VP VP VP /8VP /8VP /8VP /8VP VP VP VP VP /8VP /8VP /8VP /8VP VP VP VP VP /8VP /8VP /8VP VP VP VP /8VP /8VP /8VP VP VP VP BP4 P93TBW /5

19 Drive Selection Narrow Belts. Determine DSIGN HORSPOWR DSIGN HORSPOWR = DriveR HP x Service actor (See below) SRVIC ACTORS DRIVN ACHIN See Note Agitators for Liquids... Blowers and xhausters... Centrifugal Pumps and Compressors... Conveyors (Light Duty)... ans (up to H.P.).... Belt Conveyors for Sand, Grain, etc.... ans (over H.P.)... Generators... Laundry achinery... Line Shafts... achine Tools... ixers (Dough)... Positive Displacement Rotary Pumps... Printing achinery.... PunchesPressesShears See Note... Revolving and Vibrating Screens... Blowers (Positive Displacement)... Brick achinery.... Compressors (Piston) See Note... Conveyors (DragPanScrew)... levators (Bucket)... xciters... Hammer ills... Paper ill Beaters... Pulverized... Pumps (Piston)... Saw ill and Woodworking achinery... Textile achinery... Crushers (GyratoryawRoll) See Note... ills (BallRodTube) See Note... Hoists See Note... Rubber Calendersxtrudersills See Note... Intermittent Service See Note 4 AC Normal Torque lectric otor (NA Design AB) See Note Normal Service See Note 5 Continuous Service See Note 6 DRIVR Intermittent Service See Note 4 AC High Torque lectric otor (NA Design CD) See Note 3 Normal Service See Note 5 Continuous Service See Note Note The Driven achines listed above are representative samples only. When one of the sheaves of the drive is used as a flywheel to reduce speed fluctuations and equalize the energy exerted at the shaft or for applications involving impact or jam loads specially constructed sheaves may be required. Consult the manufacturer. Note Included under this heading are the following electric motors: Synchronous and Squirrel Cage AC Normal Torque, AC Split Phase, DC Shunt Wound and Internal Combustion ngines. Note 3 Included under this heading are the following electric motors: AC High Torque, AC HiSlip, AC Repulsion, Induction, AC Single Phase Series Wound, AC Slip Ring and DC Compound Wound. Note 4 Intermittent Service refers to 3 5 hours of daily or seasonal operation. Note 5 Normal Service indicates 8 hours of daily operation. Note 6 Continuous Service refers to 6 4 hours of daily operation. Note 7 If idlers are used, add the following to the service factor. Idler on slack side (inside) None Idler on slack side (outside). Idler on tight side (inside). Idler on tight side (outside). P93TBW /5 BP5

20 Drive Selection Narrow Belts. Select BLT CROSS SCTION using chart below. RR TO ACTORY 35 RP O ASTR AT VP 8VP DSIGN HORSPOWR 3. If using a 6 HZ electric motor, Note the inimum otor Sheave Outside Diameter recommended by NA. otor Horsepower / / 3 5 7/ OTOR RP * or ODP motors BP6 P93TBW /5

21 Balancing Standards BLT LNGTH = x C +.57 x (D + d) + [ (D d) / 4 x C ] CNTR DISTANC = / x [ A h x (D d) ] WHR: C = Center Distance (in.) L = Belt Length (in.) A = L.57 x (D + d) D = O.D. of larger sheave (in.) d = O.D. of smaller sheave (in.) h = actor from chart below D d A h D d A h D d A h D d A h AC ACTORS LC ACTORS D d C actor AC D d C actor AC Belt Correction actor LC 3VP VP VP5.96 3VP VP VP6.99 3VP63. 3VP67. 3VP7. 3VP75.3 3VP8.4 3VP85.5 3VP9.7 3VP95.8 3VP.9 3VP6. 3VP. 3VP8. 3VP5.3 3VP3.4 Belt Correction actor LC 5VP6.88 5VP VP67.9 5VP7.9 5VP75.9 5VP8.93 5VP VP9.95 5VP VP.96 5VP6.97 5VP.98 5VP8.99 5VP5. 5VP3. 5VP4. 5VP5.3 5VP6.4 5VP7.5 5VP8.6 3VP4.5 5VP9.7 5VP.8 5VP.9 5VP4.9 5VP36. 5VP5. 5VP65. 5VP8.3 5VP3.4 5VP35.5 Belt Correction actor LC 8VP.87 8VP6.88 8VP.88 8VP8.89 8VP5.9 8VP3.9 8VP4.9 8VP5.93 8VP6.94 8VP7.94 8VP8.95 8VP9.96 8VP.97 8VP.97 8VP4.98 8VP VP5. 8VP65. 8VP8. 8VP3. 8VP35.3 8VP VP VP VP4.7 8VP45.8 8VP45.9 8VP VP5. 8VP56. 5VP VP VP6.3 P93TBW /5 BP7

22 Balancing Standards Proper balance of rotating products is important for smooth, vibrationfree operation. Standard balance of Wood s stock products is a one plane balance. Depending on the face width, outside diameter, and operating speed a higher precision balance may be required for smooth operation. In those cases a twoplane balance is suggested. Note: Two plane balance is for smooth operation only and DOS NOT increase the maximum safe operating speed of the product. Stock cast iron wheels may not exceed 6,55 feet per minute; and ductile iron wheels are limited to, P. (P = sheave outside diameter x RP x.6) The nomograph below may be used as a guideline to determine when twoplane balance is recommended. To use this chart lay a straightedge between the diameter of the part on the left of the chart and the face width of the part on the right. The straight edge will intersect the slanted scale in the center of the chart. When the operating speed is greater than the intersection point a twoplane balance is recommended. xample: If a in. diameter x in. face width sheave runs faster than rpm, dynamic balancing is recommended NO. O GROOVS 3V 5V 8V 55 DIATR IN INCHS AXIU RP RCONDD OR STANDARD BALANC 6 5 AC WIDTH IN INCHS V 5V 8V BLT SCTION BP8 P93TBW /5

23 Standard otor Speed Reduction or : Ratio Drives Drive Selection Narrow Premium VBelts TO Drive Design xample: Given a HP engine at 9 RP driving a aw Crusher operating at 3 RP, 8 hours per day. The engine shaft is 57/8, the Crusher shaft is 8, and the center distance is 8 Procedure Step #: Calculate the Design Horsepower DHP = DriveR HP x service factor (page BP 5) Step #: Choose the Belt Cross Section Reference chart (page BP 6) Step #3: Check NA recommended inimum otor Sheave Outside Diameter (page BP 6) Step #4: Calculate Speed Ratio Speed Ratio = aster RP / Slower RP Step #5: Use the Ratio and any diameter limits or known sheaves to determine the diameters of DriveR and DriveN. Try to utilize stock parts when possible. Step #6: Using the diameter of the sheave the actual ratio and speed can be calculated. Step #7: Calculate Belt Length to determine the closest stock belt. Then calculate the actual CD using the stock belt. (ormulas on page BP 7) Step #8: ind the AC and LC correction factors. (page BP 7) Step #9: In the HP Rating Tables, following the Drive Selection Tables, locate the HP per Belt under the correct Belt Section. (Use Small Sheave Diameter and RP) Step #: Calculate corrected HP per Belt Add on for ratio is found to the right of the HP Rating Tables CHP = (HP per Belt + Add on) x AC x LC Step #: Determine the number of belts required NOB = Design HP / CHP Step #: Check for Dynamic Balance Recommendations Reference Chart (page BP 8) Step #3: Stock cast iron parts are good to 65 P. If operating faster TO ductile iron is required. P = diameter (in.) x RP x.6 Step #4: Specify Drive Components Reference Component Dimensional pages for Number Service actor =.6 DHP = HP x.6 = 6 xample 6 DHP and 9 RP intersect in the 8VP section Not Applicable with Internal Combustion ngine Speed Ratio = 9 RP / 3 RP =.8.4 DriveR Sheave x.8 Ratio = DriveN Sheave Use Stock 8VP63. stock sheave Actual Ratio = 63. DriveN /.4 DriveR =.8 Actual RP = 9 RP DriveR /.8 = 3 RP DriveN BL = x x ( ) + [(63..4) / (4 x 8)] BL = 99. Use an 8VP3 Belt A = 3.57 x ( ) = 65.9 CD = / x [ x (63..4)] = 8.3 AC factor =.96 LC factor for 8VP3 belts =. 8VP rating tables (pages BP 4 to 5).4 9 RP HP / Belt = 77.7 Add on for.8 ratio = 6. CHP = ( ) x.96 x. = 73.7 NOB = 6 DHP / 73.7 CHP = 9. Use belts OK as Standard 8V.4 x standard balance good to 5 RP OK as Standard 8V63. x standard balance good to 55 RP P =.4 x 9 x.6 = 58 P Standard Cast Iron Parts are OK Item DR 8V.4 x sheave 8V4) N Bushing for 57/8 bore N578 DN 8V63. x sheave 8V63 W bushing for 8 bore TO One Banded Belt /5VP3 or Two 5 Banded Belts VP3 P93TBW /5 BP9

24 Horsepower Rating for 5VP Belts Horsepower ratings per belt are listed below and on the facing page. To obtain the basic horsepower rating per belt, locate the RP of the faster shaft in the lefthand column. Read on this line across to the column headed by the diameter of the smaller sheave. The figure given is the basic horsepower rating. or convenience the standard motor speeds are grouped at the beginning of the chart. On the same horizontal line read the addon rating in the column headed by the drive speed ratio. Add the basic rating to the addon rating to obtain the total horsepower rating per belt. RP of aster Shaft * adetoorder ductile iron sheaves required. BASIC HORSPOWR RATING PR BLT SALL AV OUTSID DIATR * * * * * 77.5* * * * 6.* * BP P93TBW /5

25 Horsepower Rating for 5VP Belts The combined ArcLength correction factor shown in the ArcofContact correction factor table and the Belt Length correction factor table, page BP7, should be applied to the total HP per belt before determining the number of belts required for the drive. RP of aster Shaft ADDON HORSPOWR RATING PR BLT SPD RATIO over P93TBW /5 BP

26 Horsepower Rating for 8VP Belts Horsepower ratings per belt are listed below and on the facing page. To obtain the basic horsepower rating per belt, locate the RP of the faster shaft in the lefthand column. Read on this line across to the column headed by the diameter of the smaller sheave. The figure given is the basic horsepower rating. or convenience the standard motor speeds are grouped at the beginning of the chart. On the same horizontal line read the addon rating in the column headed by the drive speed ratio. Add the basic rating to the addon rating to obtain the total horsepower rating per belt. RP of aster Shaft * adetoorder ductile iron sheaves required. BASIC HORSPOWR RATING PR BLT SALL AV OUTSID DIATR * * * * * * 86.6* * * * BP P93TBW /5

27 Horsepower Rating for 8VP Belts The combined ArcLength correction factor shown in the ArcofContact correction factor table and the Belt Length correction factor table, page BP 7, should be applied to the total HP per belt before determining the number of belts required for the drive. RP of aster Shaft ADDON HORSPOWR RATING PR BLT SPD RATIO over ,_ , , , P93TBW /5 BP3

28 Notes BP4 P93TBW /5

29 Classical (Premium) Drives BP or Tough Applications BP P93TBW /5

30 SureGrip Classical Sheave eatures Wood s sheaves are constructed of fine grain, high tensile cast iron, and have been carefully engineered to assure maximum performance over a long life span. Behind each sheave is one of the most extensive engineering design and testing programs in the industry. With the advent of higher Vbelt ratings, Wood s engineers instituted additional careful test programs to ensure that each Wood s sheave would be capable of safely and dependably delivering the increased performance which was required by the new ratings. Wood s engineers, using a special strain gage test stand, subject sheaves to tension and compression stresses far in excess of those encountered in actual operation. In another standard test procedure, Wood s sheaves are operated at extremely high speeds. Sheaves are selected from warehouse stocks and tested until they are burst by centrifugal force. Such destructive testing allows Wood s engineers to study the effects of construction and balance on sheave performance. The goal is to assure safe operation at normal speeds. Other continuing programs check product quality in the laboratory and on the manufacturing line. or applications with special requirements, Wood s sheaves are also available on a madetoorder basis in either cast or ductile iron, and in SureGrip or boredtosuit construction. Wood s stock classical sheaves are available with the convenient SureGrip QD type bushing. asy to install and remove, these split, tapered bushings grip the shaft with the equivalent of a shrink fit. This tight holding power eliminates freezing and fretting corrosion between the shaft and the bore and assures quick removal and interchangeability when necessary. We cast or stamp the maximum safe operating speed, in rpm, on all sheaves we manufacture. BP P93TBW /5

31 Classical (Conventional) Sheave STANDARD GROOV DINSIONS Dimensions A W B T VBelt GROOV DINSIONS IN INCHS A B C D V T U W Angle of Groove Used on Datums V ANGL C AB / C / to 7. Over to to. Over. U STANDARD AV AC WIDTHS Groove Selection AC WIDTH O AV IN INCHS or ach Additional Groove Add A 3 /4 3 7/8 4 / /4 8 7/8 9 / B / 3 / / 6 / / 9 /4 / /4 3 3 C * Sheaves 6D groove and over have / inch added to overall face width. All dimensions in inches. DP GROOV DINSIONS VBelt GROOV DINSIONS IN INCHS A B C D V T U W B 9/6 7/ C 3/6 / Angle of Groove Used on Datums 4.6 to 7. Over to to. Over. DP GROOV AV AC WIDTHS AC WIDTH O AV IN INCHS VBelt or ach Additional Groove Add B 7/ / 6 7 / /8 / 3 4 / /8 C 7/ /8 9 7/ /8 9 7/8 /4 P93TBW /5 BP3

32 Stock Classical (Conventional) Sheaves AB Dimensions These Classical Sheaves are designed to carry the loads of all belts shown in this catalog and other similarly rated VBelts. or special higher rated VBelts, consult Wood s Application ngineering Department for recommendations. The sheaves listed below are all stock sizes. The dimensions given are with the SureGrip bushing in place. The figure following the letter in the Type column indicates the sheave construction: Solid; Web, 3 Arms. DINSIONS (In Inches) Datum Dia. A B Belts Belts O.D. I.D. GROOV GROOV = 7/8 & = * Type Bush. K L Wt. * Type Bush. K L Wt B 36B 38B 4B 4B / / / /4 /4 D D D C C /6 /6 /6 /4 /4 /4 /4 / B 36B 38B 4B 4B /6 7/8 7/8 3/6 3/6 /6 /6 /4 /4 /4 /4 /4 9/ B 46B 48B 5B 5B /4 C C C C C S S S S / B 46B 48B 5B 5B /6 /6 /6 /6 S S S S /6 /6 /6 /6 /6 / B 56B 58B 6B 6B C C C C C S S S S S B 56B 58B 6B 6B /6 /6 /6 /6 /6 S S S S S /6 /6 /6 /6 / B 66B 68B 7B 74B / / C C C D D S S S S S 3/6 3/ B 66B 68B 7B 74B /6 /6 /6 9/3 9/3 D D S S S /6 /6 /6 7/6 7/6 7/8 7/8 5/3 5/ B 86B 94B B 4B / / / / / D D S S S S S 3/6 3/6 3/6 3/6 3/ B 86B 94B B 4B 9/3 9/3 9/3 9/3 9/3 D D 7/6 7/6 7/6 7/6 7/6 7/8 7/8 7/8 7/8 7/8 5/3 5/3 5/3 5/3 5/ B 54B 6B 84B B / 9/3 9/3 9/3 9/3 S 7/8 7/8 7/8 7/8 3/6 9/3 9/3 9/3 9/ B 54B 6B 84B B 9/3 9/3 9/3 9/3 S 7/6 7/6 7/6 7/6 7/8 7/8 7/8 7/8 5/3 5/3 5/3 5/3 / B 3B /6 /6 S S B 3B 38B S S S /6 /6 / * Dimension varies according to shaft tolerance. Weights for all SureGrip bushed items are approximate and include the bushing. Also available from stock made for the S Bushing to accommodate larger bores. P.D. for A Belts = DD +.5 P.D. for B Belts = DD +.43 SureGrip Bushing dimensions see section BP4 P93TBW /5

33 Stock Classical (Conventional) Sheaves AB DINSIONS (In Inches) Dimensions Datum Dia. A B Belts Belts O.D. I.D. 3 GROOV 4 GROOV = / No = * Type Bush. K L Wt. * Type Bush. K L Wt B 363B 383B 43B 43B 3/6 / / 3/6 3/6 /6 /6 /4 /4 /4 /4 /4 9/ B 364B 384B 44B 44B /6 /6 7/6 7/6 3/6 3/6 3/6 3/6 3/ B 463B 483B 53B 53B / 7/6 7/6 7/6 7/6 /6 /6 /6 /6 /6 /4 3/6 3/6 3/6 3/6 /4 /4 /4 / B 464B 484B 54B 54B /6 /6 /6 /6 /6 3/6 3/6 3/6 3/6 3/ B 563B 583B 63B 63B 7/6 7/6 7/6 7/6 7/6 /6 /6 /6 /6 /6 3/6 3/6 3/6 3/6 3/6 /4 /4 /4 /4 / B 564B 584B 64B 64B /6 /6 /6 /6 /6 3/6 3/6 3/6 3/6 3/ B 663B 683B 73B 743B 7/6 7/6 7/6 /3 /3 A A D D /6 /6 /6 /6 /6 3/6 3/6 3/6 7/8 7/8 /4 /4 /4 /3 / B 664B 684B 74B 744B /6 /6 /6 9/3 9/3 A 3/6 3/6 3/6 7/8 7/8 3/3 3/ B 863B 943B 3B 43B /3 /3 /3 /3 /3 D D /6 /6 /6 /6 /6 7/8 7/8 7/8 7/8 7/8 /3 /3 /3 /3 / B 864B 944B 4B 44B 9/3 9/3 9/3 9/3 9/3 A A A 7/8 7/8 7/8 7/8 7/8 3/3 3/3 3/3 3/3 3/ B 543B 63B 843B 3B /3 /3 /3 /3 /6 S /6 /6 /6 /6 7/8 7/8 7/8 7/8 /3 /3 /3 /3 9/ B 544B 64B 844B 4B 9/3 S S S S 7/8 3/ B 33B 383B /6 /6 9/3 S S 9/6 9/6 5/ B 34B 384B 3/3 3/3 3/3 7/3 7/3 7/ * Dimension varies according to shaft tolerance. Weights for all SureGrip bushed items are approximate and include the bushing. Also available from stock made for the S Bushing to accommodate larger bores. P.D. for A Belts = DD +.5 P.D. for B Belts = DD +.43 K O. D. I. D. L O. D. I. D. L O. D. I. D. L O. D. I. D. L O. D. I. D. L K K K K Type A Type B Type C Type D Type SureGrip Bushing dimensions see section P93TBW /5 BP5

34 Stock Classical (Conventional) Sheaves AB Dimensions These Classical Sheaves are designed to carry the loads of all belts shown in this catalog and other similarly rated VBelts. or special higher rated VBelts, consult Wood s Application ngineering Department for recommendations. The sheaves listed below are all stock sizes. The dimensions given are with the SureGrip bushing in place. The figure following letter in the Type column indicates the sheave construction: Solid; Web, 3 Arms. DINSIONS (In Inches) t h e Datum Dia. A B Belts Belts O.D. I.D. 5 GROOV 6 GROOV = 4 = 4 * Type Bush. K L Wt. * Type Bush. K L Wt B 365B 385B 45B 45B /6 3/6 3/6 3/6 3/6 3/6 3/ B 366B 386B 46B 46B 37/8 37/8 37/8 39/6 39/6 3/6 3/6 3/6 3/6 3/ B 465B 485B 55B 55B 3/6 /6 /6 /6 /6 3/6 3/6 3/6 3/6 3/6 / / / / B 466B 486B 56B 56B 39/6 /6 /6 /6 /6 3/6 3/6 3/6 3/6 3/6 /4 /4 /4 / B 565B 585B 65B 65B 9/3 9/3 9/3 9/3 9/3 7/8 7/8 7/8 7/8 7/8 7/3 7/3 7/3 7/3 7/ B 566B 586B 66B 66B 9/3 9/3 9/3 9/3 9/3 7/8 7/8 7/8 7/8 7/8 9/3 9/3 9/3 9/3 9/ B 665B 685B 75B 745B 9/3 9/3 9/3 S S 7/8 7/8 7/8 7/3 7/3 7/ B 666B 686B 76B 746B 9/3 9/3 9/3 S S /6 /6 7/8 7/8 7/8 9/3 9/3 9/ B 865B 945B 5B 45B A S S S S S B 866B 946B 6B 46B A S S S S S /6 /6 /6 /6 / B 545B 65B 845B 5B /3 S S S S /4 / B 546B 66B 846B 6B 3/3 S S S S /6 /6 /6 /6 / B 35B 385B /3 /3 /3 /4 /4 /4 /3 /3 / B 36B 386B 3/3 3/3 3/3 /3 /3 / * Dimension varies according to shaft tolerance. Weights for all SureGrip bushed items are approximate and include the bushing. P.D. for A Belts = DD +.5 P.D. for B Belts = DD +.43 K O. D. I. D. L O. D. I. D. L O. D. I. D. L O. D. I. D. L O. D. I. D. L K K K K Type A Type B Type C Type D Type SureGrip Bushing dimensions see section BP6 P93TBW /5

35 Stock Classical (Conventional) Sheaves AB Dimensions Datum Dia. A B Belts Belts O.D. I.D. DINSIONS (In Inches) 7 GROOV 8 GROOV = 5 / = 6 /4 * Type Bush. K L Wt. * Type Bush. K L Wt B 567B 587B 67B 67B 3/3 3/3 3/3 S S 3/6 3/6 3/6 3/6 3/6 /78 /78 /78 7/3 7/3 7/ B 568B 588B 68B 68B 3/3 3/3 3/3 S S 3/6 3/6 3/6 3/6 3/6 7/8 7/8 7/8 39/3 39/3 39/ B 667B 687B 77B 747B S S S S S 3/6 3/6 3/6 3/6 3/ B 668B 688B 78B 748B S S S S S 3/6 3/6 3/6 3/6 3/ B 947B 7B 47B 367B 3/3 3/3 3/3 3/3 3/3 A A A 5/3 5/3 5/3 5/3 5/ B 948B 8B 48B 368B 5/3 5/3 5/3 5/3 5/3 A A A 5/3 5/3 5/3 5/3 5/ B 67B 847B 7B 57B 3/3 3/3 /4 /4 / /3 5/ B 68B 848B 8B 58B 5/3 5/3 /4 /4 / /3 5/ B 387B /4 / B 388B /4 / Datum Dia. A B Belts Belts O.D. I.D. GROOV = 7 * Type Bush. K L Wt B 56B 58B 6B 6B 7/3 7/3 7/3 7/8 7/8 S S 9/6 9/6 9/6 9/6 9/6 7/8 7/8 7/8 4/3 4/3 4/3 37/8 37/ B 66B 68B 7B 74B 7/8 7/8 7/8 7/8 7/8 S S S S S 9/6 9/6 9/6 9/6 9/6 37/8 37/8 37/8 37/8 37/ B 94B B 4B 36B 7/3 7/3 7/3 7/3 A A A /6 3 9/3 9/3 9/3 9/ B 6B 84B B 5B /6 /6 /6 /6 / B 38B /6 9/6 3 4/ * Dimension varies according to shaft tolerance. Weights for all SureGrip bushed items are approximate and include the bushing. P.D. for A Belts = DD +.5 P.D. for B Belts = DD +.43 SureGrip Bushing dimensions see section P93TBW /5 BP7

36 Stock Classical (Conventional) Sheaves C Dimensions These sheaves are designed to carry the loads of all belts shown in this catalog and other similarly rated VBelts. or special higher rated VBelts, consult Wood s Application ngineering Department for recommendations. The Classical Sheaves listed below are all stock sizes. The dimensions given are with the SureGrip bushing in place. The figure following the letter in the Type column indicates the sheave construction: Solid; Web, 3 Arms. DINSIONS (In Inches) Datum Dia. O.D. I.D. GROOV GROOV = = * Type Bush. K L Wt. * Type Bush. K L Wt C 75C 8C 85C 9/6 9/6 9/6 9/6 C C C C S S S S /6 /6 /6 / C 7C 75C 8C 85C 3/6 S S S S 3/6 3/6 3/6 3/6 3/6 3/6 /4 /4 /4 / C 95C C 5C C 9/6 9/6 9/6 9/6 9/6 C C C C S S S S S /6 /6 /6 /6 / C 95C C 5C C A A A A S S S S S 3/6 3/6 3/6 3/6 3/6 /4 /4 /4 /4 / C 3C 4C 6C 8C 9/6 9/6 9/6 9/6 9/6 S S S S S /6 /6 /6 /6 / C 3C 4C 6C 8C S S S S S 9/6 9/6 9/6 9/6 9/6 / / / / / C 4C 9/6 9/6 S S /6 / C 4C 7C 3C S S 9/6 9/6 3 3 / / / / Datum Dia. O.D. I.D. No 3 GROOV 4 GROOV = 3 = 4 * Type Bush. K L Wt. * Type Bush. K L Wt C 563C 63C 73C 753C 7/6 /6 S S S /6 3/6 3t/6 7/ C 564C 64C 74C 754C 7/8 7/8 7/8 S S S 9/6 9/6 9/6 9/6 9/6 3/6 3/6 / / / C 853C 93C 953C 3C 7/3 7/3 7/3 7/3 7/3 B B B B B 3/3 3/3 3/3 3/3 3/ C 854C 94C 954C 4C 3/3 3/3 3/3 3/3 3/3 /3 /3 /3 /3 / C 3C 3C 33C 43C 7/3 7/3 7/3 7/3 7/3 B B B B B 3/3 3/3 3/3 3/3 3/ C 4C 4C 34C 44C 3/3 3/3 3/3 3/3 3/3 A A A A /3 /3 /3 /3 / C 83C 3C 43C 73C 7/3 7/3 3/3 3/3 /4 3/6 3 3/3 3/3 /3 / C 84C 4C 44C 74C 3/3 3/3 9/3 /4 /4 / 3 3 /3 /3 5/3 / / C 363C 443C 53C /4 /4 /4 /4 3/6 3/6 3/6 3/ C 364C 444C 54C /4 /4 9/6 9/ / 4/ / / 7/6 7/ * Dimension varies according to shaft tolerance. Weights for all SureGrip bushed items are approximate and include the bushing. P.D. is same as O.D. O. D. I. D. L O. D. I. D. L O. D. I. D. L O. D. I. D. L K K K K Type A Type B Type C Type D SureGrip Bushing dimensions see section BP8 P93TBW /5

37 BP9 P93TBW /5 Stock Classical (Conventional) Sheaves C Dimensions DINSIONS (In Inches) Datum Dia. O.D. I.D. 5 GROOV 6 GROOV = 5 = 6 * Type Bush. K L Wt. * Typr Bush. K L Wt C 75C 755C 85C 855C /4 /4 5/3 5/3 S S S /6 9/3 9/ C 76C 756C 86C 856C /4 /4 5/3 5/3 S S S 3/ /3 9/ C 955C 5C 55C 5C 5/3 5/3 5/3 5/3 5/3 A A 9/3 9/3 9/3 9/3 9/ C 956C 6C 56C 6C 7/6 7/6 7/6 7/6 7/ C 35C 45C 65C 85C 5/3 5/3 5/3 5/3 5/3 A A 9/3 9/3 9/3 9/3 9/ C 36C 46C 66C 86C A A 7/6 7/6 7/6 7/6 7/ C 45C 75C 35C 365C /4 /4 /4 /4 9/ / / / / / 9/ C 46C 76C 36C 366C 7/8 7/8 9/6 9/6 9/ / 4/ 4/ 7/8 7/8 9/6 9/6 9/ C 55C 9/6 9/6 4/ 4/ 9/6 9/ C 56C 5/3 9/6 4/ 6 9/6 7/ Datum Dia. O.D. I.D. 7 GROOV 8 GROOV = 7 = 8 * Type Bush. K L Wt. * Type Bush. K L Wt C 87C 857C 97C 957C /4 /3 /3 /4 /4 S /3 3/3 / / C 88C 858C 98C 958C 7/6 /3 /3 /4 /4 S /3 33/3 / / C 57C 7C 7C 37C /4 /4 /4 /4 /4 A A / / / / / C 58C 8C 8C 38C /4 /4 /4 /4 /4 A A / / / / / C 67C 87C 7C 47C /4 /4 /4 A A /6 9/ / 4/ / / / 9/6 9/ C 68C 88C 8C 48C /4 /4 /4 A A /6 9/ / 4/ / / / 39/6 39/ C 37C 367C 447C 57C 5/3 5/3 9/6 9/6 9/6 4/ 4/ 4/ 6 6 9/6 9/6 9/6 5/3 5/ C 38C 368C 448C 58C 5/3 5/3 5/3 9/6 9/6 4/ 4/ /6 39/6 5/3 5/3 5/ * Dimension varies according to shaft tolerance. Weights for all SureGrip bushed items are approximate and include the bushing. P.D. is same as O.D. SureGrip Bushing dimensions see section

38 Stock Classical (Conventional) Sheaves C Dimensions DINSIONS (In Inches) Datum Dia. O.D. I.D. 9 GROOV GROOV = 9 = * Type Bush. K L Wt. * Type Bush. K L Wt C 859C 99C 959C 9C /3 /3 39/6 39/6 39/6 4/ 4/ 4/ 43/3 43/3 9/6 9/6 9/ C 85C 9C 95C C /3 /3 39/6 39/6 39/6 4/ 4/ 4/ 53/3 53/3 39/6 39/6 39/ C 9C 9C 39C 49C A A 39/6 39/6 39/6 39/6 39/6 4/ 4/ 4/ 4/ 4/ 9/6 9/6 9/6 9/6 9/ C C C 3C 4C A A 39/6 39/6 39/6 39/6 39/6 4/ 4/ 4/ 4/ 4/ 39/6 39/6 39/6 39/6 39/ C 89C 9C 49C 79C 3/6 3/6 3/6 A 39/6 39/6 3/6 3/6 3/6 4/ 4/ 4/ 4/ 4/ 9/6 9/6 3/6 3/6 3/ C 8C C 4C 5/3 A 39/6 39/6 39/6 4/ 4/ 4/ 6 39/6 39/6 39/6 35/ C 369C 449C 59C 5/3 5/3 5/3 5/ /3 5/3 5/3 5/ C 36C 44C 5C 5/3 5/3 5/3 5/ /3 35/3 35/3 35/ Datum Dia. O.D. I.D. GROOV = * Type Bsuh. K L Wt C 95C C 5C C 3/6 3/6 3/6 3/6 3/6 4/6 4/6 4/6 4/6 4/6 4/ 4/ 4/ 4/ 4/ 5/6 5/6 5/6 5/6 5/ C 3C 4C 6C 8C 3/6 3/6 3/6 3/6 3/6 A 4/6 4/6 4/6 4/6 4/6 4/ 4/ 4/ 4/ 4/ 5/6 5/6 5/6 5/6 5/ C 4C 3C 36C 44C 5/3 5/3 5/3 5/3 5/3 A /3 55/3 55/3 55/3 55/ C 5/3 6 55/ * Dimension varies according to shaft tolerance. Weights for all SureGrip bushed items are approximate and include the bushing. P.D. is same as O.D. SureGrip Bushing dimensions see section BP P93TBW /5

39 Classical (PremiumV) VBelts eatures The Classical Premium Vbelts include three cross sections... A, B, and C. These sections are a continuing development of the original Vbelts of the 93 s. These belts are wrapped construction and are oil and heat resistant APR 3 BPR 7 6 CPR 7 3 All Premium V Belts are constructed with: Kevlar* or aramid tensile cords Give extraordinary strength, durability and virtually zero stretch Speciallytreated extra tough cover Withstands slip and shear forces at peak loads without generating excessive heat; fends off penetration by foreign materials Heavy duty double fabric cover Creates maximum abrasion resistance that protects against wear caused by fine airborne dust in rock quarries and lumber mills which can cause rapid belt sidewall wear resulting in early failures Premium Single Belts or applications when banded belts are not an option. Single belts can be used with deep groove sheaves and drives with limited room for take up. They can also be an A section solution for multigroove A/B sheaves. Single belts should be length matched for multiple belt drives. Premium Banded Belts Replaces several belts with the strength of a single belt. Banded belts feature a multiple layer tie band that provides excellent lateral rigidity to prevent belts from turning over or from coming off the drive Warning: When incorporating TB Wood s PremiumV belts, it is important to evaluate the load capacity of existing or specified sheaves. The exceptional strength of PremiumV belts, combined with tough application environments, require heavyduty sheaves that can meet the challenge. TB Wood s offers a full array of sheaves manufactured in our foundry to meet stringent quality standards. *Kevlar is a registered trademark of Dupont P93TBW /5 BP

40 Classic (PremiumV) VBelts Dimensions APR Single Belts BPR Single Belts Belt Length* Weight Lbs. APR APR APR APR APR4 4.3 APR APR APR APR APR APR APR APR APR APR APR APR Belt Length* Weight Lbs. APR APR APR APR APR APR APR APR APR APR APR APR APR APR APR APR APR Belt Length* Weight Lbs. BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR Belt Length* Weight Lbs. BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR BPR97. BPR 3.5 BPR3 6.9 BPR5 8. BPR8.4 BPR 5.9 BPR 3.38 BPR4 7.4 BPR BPR BPR BPR BPR BPR CPR Single Belts CPR Banded Belts Belt Length* Weight Lbs. CPR CPR CPR96.9 CPR CPR 4.7 CPR5 9.7 CPR 6.4 CPR 4.59 CPR CPR CPR CPR CPR CPR CPR CPR CPR Belt Length* Weight Lbs. 3/CPR /CPR /CPR /CPR /CPR /CPR /CPR /CPR /CPR /CPR * Belt length = the outside circumference (in.) BP P93TBW /5

41 Drive Selection Classical Belts. Determine DSIGN HORSPOWR DSIGN HORSPOWR = DriveR HP x Service actor (See below) SRVIC ACTORS DRIVN ACHIN See Note Agitators for Liquids... Blowers and xhausters... Centrifugal Pumps and Compressors... Conveyors (Light Duty)... ans (up to H.P.).... Belt Conveyors for Sand, Grain, etc.... ans (over H.P.)... Generators... Laundry achinery... Line Shafts... achine Tools... ixers (Dough)... Positive Displacement Rotary Pumps... Printing achinery.... PunchesPressesShears See Note... Revolving and Vibrating Screens... Blowers (Positive Displacement)... Brick achinery.... Compressors (Piston) See Note... Conveyors (DragPanScrew)... levators (Bucket)... xciters... Hammer ills... Paper ill Beaters... Pulverizers.... Pumps (Piston)... Saw ill and Woodworking achinery... Textile achinery... Crushers (GyratoryawRoll) See Note... ills (BallRodTube) See Note... Hoists See Note... Rubber Calendersxtrudersills See Note... AC Normal Torque lectric otor (NA Design AB) See Note Intermittent Service See Note 4 Normal Service See Note 5 Continous Service See Note 6 DRIVR AC High Torque lectric otor NA Design CD) See Note 3 Intermittent Service See Note 4 Normal Service See Note 5 Continous Service See Note Note The Driven achines listed above are representative samples only. When one of the sheaves of the drive is used as a flywheel to reduce speed fluctuations and equalize the energy exerted at the shaft or for applications involving impact or jam loads, specially constructed sheaves may be required. Consult the manufacturer. Note Included under this heading are the following electric motors: Synchronous and Squirrel Cage AC Normal Torque, AC Split Phase, DC Shunt Wound and Internal Combustion ngines. Note 3 Included under this heading are the following electric motors: AC High Torque, AC HiSlip, AC Repulsion, Induction, AC Single Phase Series Wound, AC Slip Ring and DC Compound Wound. Note 4 Intermittent Service refers to 3 5 hours of daily or seasonal operation. Note 5 Normal Service indicates 8 hours of daily operation. Note 6 Continuous Service refers to 6 4 hours of daily operation. Note 7 If idlers are used, add the following to the service factor. Idler on slack side (inside) None Idler on slack side (outside). Idler on tight side (inside). Idler on tight side (outside). P93TBW /5 BP3

42 Drive Selection Classical Belts. Select BLT CROSS SCTION using chart below., RP O ASTR AT RP 75 RP 6 RP APAX BPBX CPCX Refer to actory DSIGN HORSPOWR 3. If using a 6 HZ electric motor, Note the inimum otor Sheave Outside Diameter recommended by NA. otor Horsepower / / 3 5 7/ OTOR RP * or ODP motors BP4 P93TBW /5

43 Drive Selection BLT LNGTH = x C +.57 x (D + d) + [ (D d) / (4 x C) ] Classical Belts CNTR DISTANC = / x [ A h x (D d) ] WHR: C = Center Distance (in.) L = Belt Datum Length (in.) A = L.57 x (D + d) D = Datum Diameter of larger sheave (in.) d = Datum Diameter of smaller sheave (in.) h = actor from chart below D d A h D d A h D d A h D d A h AC ACTORS LC ACTORS D d C actor Ac D d C actor Ac Belt Correction actor Lc APR3.84 APR35.87 APR38.88 APR4.9 APR46.9 APR5.94 APR55.96 APR6.98 APR68. APR75. APR8.4 APR85.5 APR9.6 APR96.8 APR5. APR. APR.3 APR8.4 Belt Correction actor Lc BPR35.8 BPR38.83 BPR4.85 BPR46.87 BPR5.89 BPR55.9 BPR6.9 BPR68.95 BPR75.97 BPR8.98 BPR85.99 BPR9. BPR97. BPR5.4 BPR.5 BPR.7 BPR8.8 BPR36.9 BPR44. BPR58.3 BPR73.5 BPR8.6 BPR95.8 BPR.9 BPR4. BPR7.5 BPR3.7 Belt Correction actor Lc CPR85.9 CPR9.9 CPR96.9 CPR5.94 CPR.95 CPR.97 CPR8.98 CPR36.99 CPR44. CPR58. CPR6.3 CPR73.4 CPR8.5 CPR95.7 CPR.8 CPR4. CPR7.4 CPR3.6 CPR36. CPR39.3 CPR4.4 NOT: Includes AX, BX, CX, and DX belts. P93TBW /5 BP5

44 Balancing Standards Proper balance of rotating products is important for smooth, vibrationfree operation. Standard balance of Wood s stock products is a one plane balance. Depending on the face width, outside diameter, and operating speed a higher precision balance may be required for smooth operation. In those cases a twoplane balance is suggested. Note: Two plane balance is for smooth operation only and DOS NOT increase the maximum safe operating speed of the product. Stock cast iron wheels may not exceed 6,55 feet per minute; and ductile iron wheels are limited to, P. (P = sheave outside diameter x RP x.6) The nomograph below may be used as a guideline to determine when twoplane balance is recommended. To use this chart lay a straightedge between the diameter of the part on the left of the chart and the face width of the part on the right. The straight edge will intersect the slanted scale in the center of the chart. When the operating speed is greater than the intersection point a twoplane balance is recommended. xample: If a in. diameter x in. face width sheave runs faster than rpm, dynamic balancing is recommended NO. O GROOVS A B C D 55 DIATR IN INCHS AXIU RP RCONDD OR STANDARD BALANC 6 5 AC WIDTH IN INCHS A B C D BLT SCTION BP6 P93TBW /5

45 Drive Selection Classical Belts xample: A 6 HP 78 RP NA C motor driving a machine tool operating at 5 RP, 4 hours per day. The motor shaft is diameter, the machine tool is supplied with a.75 x 3B sheave mounted and the center distance is 3. Procedure Step #: Calculate the Design Horsepower DHP=DriveR HP x service factor (page BP3) Step #: Choose the Belt Cross Section Reference chart (page BP4) Step #3: Check NA recommended inimum otor Sheave Outside Diameter (page BP4) Step #4: Calculate Speed Ratio Speed Ratio = aster RP/Slower RP Step #5: Use the Ratio and any diameter limits or known sheaves to determine the diameters of DriveR and DriveN. Try to utilize stock parts when possible. Step #6: Using the diameter of the sheave the actual ratio and speed can be calculated. Step #7: Calculate Belt Length to determine the closest stock belt. Then calculate the actual CD using the stock belt. (ormulas on page BP5) Step #8: ind the AC and LC correction factors. (Page BP5) Step #9: In the HP Rating Tables, following the Drive Selection Tables, locate the HP per Belt under the correct Belt Section. (Use Small Sheave Diameter and RP) Step #: Calculate corrected HP per Belt Add on for ratio is found to the right of the HP Rating Tables CHP = (HP per Belt + Add on) x AC x LC Step #: Determine the number of belts required NOB = Design HP / CHP Step #: Check for Dynamic Balance Recommendations Reference Chart (page BP6) Step #3: Stock cast iron parts are good to 65 P. If operating faster TO ductile iron is required. P = diameter (in.) x RP x.6 Step #4: Specify Drive Components Reference Component Dimensional pages for Number Service actor =.4 DHP = 6 x.4 = 84 xample 84 DHP and 78 RP intersect in the BP section. inimum O.D. for a 6 HP, 78 RP motor is 7.4 inches Speed Ratio = 78 RP / 5 RP =.4.75 OD Known DriveN Sheave =.4 PD.4 PD DriveN Sheave /.4 Ratio = 8.73 PD DriveR Sheave Use Stock 86B stock sheave = 8.6 PD Actual Ratio =.4 DriveN / 8.6 DriveR =.44 Actual RP = 78 RP DriveR /.44 = 36 RP DriveN BL = x x ( ) + [(.4 8.6) / (4 x 3)] BL = 97. Use a BP95 Belt A = x ( ) = 63.8 CD = ½ x [ x (.4 8.6)] = 3.84 AC factor =.985 LC factor for BP95 belts =. BP rating tables (Page XXXX to XX) RP HP / Belt = 3. Add on for.44 ratio =. CHP = (3. +.) x.985 x. = 3.5 NOB = 84 DHP / 3.5 CHP =.7 Use 3 belts OK as Standard 8.6 x 3B standard balance good to 38 RP OK as Standard.4 x 3B standard balance good to 3 RP P = 8.95 x 78 x.6 = 474 P Standard Cast Iron parts are OK. Item Ref. Page DR 8.6 x 3B sheave 863B BP5 Bushing for bore 38 5 DN xisting.4 x 3B sheave 43B BP5 Belts Qty. of 3 Belts BPR95 BP P93TBW /5 BP7

46 Horsepower Rating for APR Belts Classical horsepower ratings per belt are listed below and on the facing page. To obtain the basic horsepower rating per belt, locate the rpm of the faster shaft in the lefthand column. Read on this line across to the column headed by the diameter of the smaller sheave. The figure given is the basic horsepower rating. or convenience the standard motor speeds are grouped at the beginning of the chart. On the same horizontal line read the addon rating in the column headed by the drive speed ratio. Add the basic rating to the addon rating to obtain the total horsepower rating per belt. RP of aster Shaft * adetoorder ductile iron sheaves required. BASIC HORSPOWR RATING PR BLT SALL AV DATU DIATR BP8 P93TBW /5

47 Horsepower Rating for APR Belts The combined ArcLength correction factor shown in the Classical preengineered drive tables or in the ArcofContact correction factor table and the Belt Length correction factor table, page BP5, should be applied to the total hp per belt before determining the number of belts required for the drive. RP of aster Shaft ADDON HORSPOWR RATING PR BLT SPD RATIO over P93TBW /5 BP9

48 Horsepower Rating for BPR Belts Classical horsepower ratings per belt are listed below and on the facing page. To obtain the basic horsepower rating per belt, locate the rpm of the faster shaft in the lefthand column. Read on this line across to the column headed by the diameter of the smaller sheave. The figure given is the basic horsepower rating. or convenience the standard motor speeds are grouped at the beginning of the chart. On the same horizontal line read the addon rating in the column headed by the drive speed ratio. Add the basic rating to the addon rating to obtain the total horsepower rating per belt. RP of aster Shaft BASIC HORSPOWR RATING PR BLT SALL AV DATU DIATR BP P93TBW /5

49 Horsepower Rating for BPR Belts The combined ArcLength correction factor shown in the Classical preengineered drive tables or in the ArcofContact correction factor table and the Belt Length correction factor table, page BP5, should be applied to the total hp per belt before determining the number of belts required for the drive. RP of aster Shaft ADDON HORSPOWR RATING PR BLT SPD RATIO over P93TBW /5 BP

50 Horsepower Rating for CPR Belts Classical horsepower ratings per belt are listed below and on the facing page. To obtain the basic horsepower rating per belt, locate the rpm of the faster shaft in the lefthand column. Read on this line across to the column headed by the diameter of the smaller sheave. The figure given is the basic horsepower rating. or convenience the standard motor speeds are grouped at the beginning of the chart. On the same horizontal line read the addon rating in the column headed by the drive speed ratio. Add the basic rating to the addon rating to obtain the total horsepower rating per belt. RP of aster Shaft BASIC HORSPOWR RATING PR BLT SALL AV DATU DIATR BP P93TBW /5

51 Horsepower Rating for CPR Belts The combined ArcLength correction factor shown in the Classical preengineered drive tables or in the ArcofContact correction factor table and the Belt Length correction factor table, page BP5, should be applied to the total hp per belt before determining the number of belts required for the drive. RP of aster Shaft ADDON HORSPOWR RATING PR BLT SPD RATIO over P93TBW /5 BP3

52 Notes BP4 P93TBW /5

53 Wood s SureGrip QD Bushings Provide a True Clamp it Are asy to Install and Remove Permit ourway ounting P686TBW 6/7

54 SureGrip Bushings eatures SureGrip Quick Detachable bushings are easy to install and remove. They are split through flange and taper to provide a true clamp on the shaft that is the equivalent of a shrink fit. All sizes except A and QT have a setscrew over the key to help 6hole drilling (most sizes) makes installation and removal quick and easy. Keyseat 8 from split. Precise taper ( in. per ft. on diameter) provides proper wedging action. Saw cut through flange and taper (and sometimes cut down into keyway also) to provide a true clamp fit. Cap screws used to secure bushings to sheave and to remove bushing from sheave. maintain the bushing s position on the shaft until the cap screws are securely tightened. SureGrip bushings have a very gradual taper (inch taper per ft. on the diameter) which is about half the inclined angle of many other bushings. The result is the SureGrip securely clamps the shaft, with twice the force of those competitive bushings, to provide extreme holding power. Versatile SureGrip bushings permit the mounting of the same mating part on shafts of different diameters, and the mounting of different sheaves on the same shaft using the same bushing. Their interchangeability extends through sheaves, pulleys, timing pulleys, sprockets, flexible and rigid couplings, madetoorder items by Wood s, and to product lines of several other mechanical power transmission manufacturers. SureGrip bushings are manufactured with the drilled and tapped holes located at a precise distance from the keyseat; thus, a wide mating part having a bushing in each end can be mounted on a common shaft with the two keyways in line. This feature not only facilitates installation but also permits both bushings to carry an equal share of the load. STANDARD OUNTING RVRS OUNTING. Cap screws from outside through drilled holes in the mating part and into threaded holes in the bushing flange located on the inside of the assembly. Or the complete as sembly reversed on the shaft and;. Cap screws from inside through drilled holes in the mating part and into threaded holes in the bushing flange located on the outside of the assembly. 3. Cap screws from inside through drilled holes in the bushing flange located on the inside of the as sembly and into threaded holes in the mating part. 4. Cap screws from outside through drilled holes in the bushing flange located on the outside of the as sembly and into threaded holes in the mating part. P686TBW 6/7

55 SureGrip Bushings Dimensions SureGrip bushings are designed to transmit the rated torque capacity listed in the table below when the cap screws are tightened as indicated. The bushings are stocked in all popular bore sizes, including metric bores, within the bore range for a particular bushing. L D B Bushing QT Bushings A to inclusive w/ Setscrew xcept A Bushings to S inclusive w/setscrew A " taper per ft. on diameter SURGRIP BUING TORQU RATINGS AND DINSIONS Bush. Torque Capacity (In.Lbs.) (Note ) ax. Bore (Note ) ax. Bore DINSIONS IN INCHS A B D * L Bolt Circle Cap Screws Required QT A S,75,75 3,5 5, 5, / /4 7/6 7/ / /6 33/6 33/6 /6 7/8 7/8 7/8 9/6 3/6 /4 /4 /4 3/6 /3 /4 /6 /6 /4 x 3 # x x x x 7/8 S 7,,, 4, 55, / 3/ 3 4/ / / 3/ / /4 / 7/8 3/6 3/ /4 /4 / 33/6 7/8 3 4/ 3 37/ /4 3 x 3 x 3/ x 39/6 x 3 3 x 4/ N P W S 5, 5, 5, 375, 65, 5/ 6 7 8/ /4 / / / 53/6 6/4 7/ /8 8/ 5 4 x 6 47/8 x 8 4 x 9/ 4 x / 5 /4 x 5/ * ating hub length.. AX INCH BOR WITH KYSAT.. AX BOR WITH STANDARD KYSAT. See pages 4 to 8 for Bore and Keyseat information and weights. P686TBW 6/7 3

56 SURGRIP BUINGS Bore and Key Seat Dimensions SureGrip Bushings are available from stock with all the bores and keyseats listed below. In some cases, as the bore increases in diameter, a shallow keyseat is provided due to insufficient metal thickness. When this happens, Wood s furnishes the correct rectangular key to suit at no charge. This does not affect the bushing s ability to transmit the load. The rectangular key, or flat key as some call it, fits into the standard keyway in the shaft. DINSIONS (In Inches) Bore Key Seat Wt. (*) Bore Key Seat Wt. (*) Bore Key Seat Wt. (*) QT BUINGS BUINGS (continued) BUINGS (continued) QTPB QT QT9/6 QT58 QT/6 7/6 / 9/6 /6 No KS x /6 x /6 3/6 x 3/3 3/6 x 3/ /6 3/6 /4 /4 x /4 x /4 x /4 x x 5/ /6 78 3/6 7/8 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 /4 x /4 x QT34 QT3/6 QT78 QT QT 3/6 7/8 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 /4 x /4 x /6 / 9/6 x 5/3 x /6 x /6 x /6 x / /6 3/6 /4 /4 x /4 x /4 x /4 x x 5/ QT6 QT8 QT36 QT4 QT56 QT38 QT76 QT APB A9/6 A58 /6 4 3/6 A PB 9/6 58 /6 34 3/6 78 /6 3/6 /4 7/6 / A BUINGS / / 9/6 /6 3/6 7/8 /6 3/6 /4 BUINGS 7/6 / 9/6 /6 3/6 7/8 * Approximate weight in lbs. /4 x /4 x /4 x /4 x x /6 x /6 x /6 x /6 No KS x /6 x /6 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 /4 x /4 x /4 x /6 /4 x /6 /4 x /6 /4 x /3 No KS x /6 x /6 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 /4 x /4 x /6 No KS.5 SPB S S9/6 S58 S/6 S34 S3/6 S78 S S S6 S8 S36 S4 S56 S38 S3838KS S76 S S96 S58 S6 S34 S36 S78 S56 S PB 9/6 58 /6 S BUINGS 7/6 / 9/6 /6 3/6 7/8 /6 3/6 /4 7/6 / 9/6 /6 3/6 7/8 BUINGS 7/6 / 9/6 /6 PB Bushings are unsplit. No KS x /6 x /6 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 /4 x /4 x /4 x /4 x /4 x /4 x x 5/3 x 5/3 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 x / x / x /6 / x /6 No KS No KS x /6 x /6 3/6 x 3/3 3/6 x 3/ KS PB 9/6 58 /6 34 3/ KS KS KS 7/6 / 9/6 /6 3/6 7/8 BUINGS 7/6 / 9/6 /6 3/6 7/8 /6 3/6 /4 7/6 / 9/6 /6 x 5/3 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 x / x / x /6 / x /6 No KS No KS x /6 x /6 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 /4 x /4 x /4 x /4 x /4 x /4 x x 5/3 x 3/6 x 5/3 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 / x / (Continued next page) 4 P686TBW 6/7

57 SureGrip Bushings Bore and Key Seat Dimensions Bore Key Seat KS SPB S S58 S34 S78 S S S6 S8 S36 S4 S56 S38 S3838KS S76 S S96 S58 S6 S34 S36 S78 S56 S S6 S8 S36 S4 S458KS S56 S38 S76 S S96 S58 S6 S34 S78 S56 BUINGS (continued) 3/6 7/8 /6 3/6 /4 /4 7/6 / 9/6 S BUINGS / / 7/8 /6 3/6 /4 7/6 / 9/6 /6 3/6 7/8 /6 3/6 /4 /4 7/6 / 9/6 /6 7/8 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 / x / x x x /6 x /6 x /6 x /6 No KS No KS No KS x /6 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 /4 x /4 x /4 x /4 x /4 x /4 x x 5/3 x 5/3 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 x x 3/6 x 3/6 x 3/6 x 3/6 x /6 x /6 x /6 x /6 x /6 x /3 Wt. (*) DINSIONS (In Inches) Bore Key Seat PB KS KS PB BUINGS 7/8 7/8 3/6 /4 7/6 / 9/6 /6 3/6 7/8 /6 3/6 /4 /4 7/6 / 9/6 /6 3/6 7/ / /6 3/ BUINGS 3/6 /4 7/6 / 9/6 No KS 3/6 x 3/3 /4 x /4 x /4 x /4 x /4 x x 5/3 x 5/3 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 x x x x x x x x x x x x x x x x 7/8 x /6 7/8 x /6 7/8 x /6 7/8 x /6 No KS /4 x /4 x /4 x /4 x x 5/3 x 3/6 x 3/6 x 3/6 x 3/6 Wt. (*) Bore Key Seat KS PB BUING (continued) 7/8 /6 3/6 /4 /4 7/6 / 9/6 /6 3/6 7/ / /6 3/ 3 3/6 3 37/8 3 4 BUINGS 7/6 7/6 / 9/6 /6 7/8 3/6 /4 7/6 / /6 7/8 x 3/6 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 x x x x x x x x x x x x x x x x 7/8 x 3/6 7/8 x 3/6 7/8 x 3/6 7/8 x 3/6 7/8 x 3/6 7/8 x 3/6 7/8 x 3/6 x x No KS No KS x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 x x x x x x x x Approximate weight in lbs. PB Bushings are unsplit. (Continued next page) Wt. (*) P686TBW 6/7 5

58 SureGrip Bushings Bore And Key Seat Dimensions DINSIONS (In Inches) Bore Key Seat Wt. (*) Bore Key Seat Wt. (*) Bore Key Seat Wt. (*) BUINGS (continued) BUINGS (continued) P BUINGS (continued) /6 x x x x x / 4/6 4 47/8 4 x / /4 x /4 x /4 x /4 /4 x / P434 P478 P456 P5 P / /6 /4 x /4 x /4 x /4 x /4 x /6 3/ 3 7/8 x 7/6 7/8 x 7/6 7/8 x 7/6 7/8 x 7/6 7/8 x 7/ /6 5/4 57/6 5/ /4 x /4 /4 x /4 /4 x /4 /4 x /4 /4 x / P54 P556 P538 P576 P5 5/ /6 5/ /4 x /4 x /4 x /4 x /4 x /6 3 33/6 37/ /6 4/4 4 47/6 4/ 7/8 x 7/6 7/8 x 7/6 x / x x x x x x x x x BUINGS 3/6 /4 7/6 / /6 7/ /6 3 37/6 3/ 3 3/6 3 37/ /6 4/4 4 47/6 / x /4 / x /4 / x /4 / x /4 x x x x x x x x x x x x 7/8 x 7/6 7/8 x 7/6 7/8 x 7/6 7/8 x 7/6 7/8 x 7/6 7/8 x 7/6 x / x / x / x / x / x / x / x / N56 N3 N338 N376 N3 N358 N334 N378 N356 N4 N436 N44 N438 N476 N4 N458 N434 N478 N456 N5 N536 N576 N5 N578 N556 P56 P34 P376 P3 P358 P334 P378 P356 P4 P44 P438 P476 P4 P458 P46 N BUINGS /6 3/ / /6 4/4 4 47/6 4/ / /6 57/6 5/ 57/8 5 x x 7/8 x 7/6 7/8 x 7/6 7/8 x 7/6 7/8 x 7/6 7/8 x 7/6 x / x / x / x / x / x / x / x / P BUINGS 37/6 3/ / /4 4 47/6 4/ 4 4/6 /4 x /4 x /4 x /4 x /4 x /4 x /4 /4 x /4 /4 x /4 / x /4 / x x x 7/8 x 7/6 7/8 x 7/6 7/8 x 7/6 7/8 x 7/6 x / x / x / x / x / x / x / /4 x /4 x P534 P578 P556 P6 P66 P64 P676 P6 P634 P7 W44PB W478PB W54PB W578PB W6PB W74PB W734 W8 S6PB S8PB S9PB 5 57/ /6 6/4 67/6 6/ 6 7 W BUINGS 4/4 47/8 5/4 57/8 6/ 7/4 7 8/ / x / x / x / x /4 / x /4 / x /4 / x /4 / x /4 x x x /4 x /4 S BUINGS PB bushings are unsplit. * Approximate weight in lbs. 6 P686TBW 6/7

59 SureGrip Bushings With etric Bore and Keyseat DINSIONS (In mm) Bore And Key Seat Dimensions Bore (mm) Key n Wt. (*) Bore (mm) Key n Wt. (*) Bore (mm) Key n Wt. (*) QT4 QT5 QT6 QT8 QT9 QT QT QT4 QT5 QT8 QT3 QT3 QT35 QT A A4 A5 A S4 S5 S8 S3 S3 S35 S38 S4 S4 QT BUINGS x 5 5 x 5 5 x 5 6 x 6 6 x 6 6 x 6 6 x 6 8 x 7 8 x 7 8 x 7 8 x 7 x 6 x 6 x 6 A BUINGS x 5 5 x 5 6 x 6 6 x 6 8 x 6 8 x 6 8 x 5 BUINGS x 7 8 x 7 8 x 7 8 x 7 x 8 x 8 S BUINGS x 7 8 x 7 8 x 7 8 x 7 x 8 x 8 x 8 x 8 x 8 BUINGS S8 S3 S3 S35 S38 S4 S4 S45 S48 S5 S55 S6 S BUINGS x 7 8 x 7 8 x 7 8 x 7 x 8 x 8 x 8 x 8 x 8 4 x 9 4 x 9 4 x 9 6 x S BUINGS BUINGS x 7 8 x 7 x 8 x 8 x 8 x 8 x 8 4 x 9 4 x 9 4 x 9 6 x 8 x 8 x 8 x 8 x 8 x 8 x 8 4 x 9 4 x 9 4 x 9 6 x 8 x 8 x x x x N N BUINGS x 9 4 x 9 4 x 9 6 x 8 x 8 x x x x 4 x 4 5 x 4 BUINGS x 9 6 x 8 x 8 x x x x 4 x 4 5 x 4 5 x 4 8 x 6 BUINGS 8 9 x 4 5 x 4 8 x 6 3 x 8 N BUINGS 8 x 6 3 x 8 P BUINGS P x x 7 8 x 7 8 x 7 8 x 7 x 8 x 8 x 8 x 8 x Approximate weight in lbs. n The metric system does not refer to keyseat or keyway dimensions as does the nglish system; instead, dimensions are given for the key itself, which is rectangular in shape and not square as in the nglish system. This meets ISO standards. ALLOW KY URNID P686TBW 6/7 7

60 SA SureGrip L Series langeless Bushings Bush. Torque Capacity (In.Lbs.) Type aterial ax. Bore (In.) ax. Bore (In.) DINSIONS IN INCHS B Bolt Circle Cap Screws Required L 7, D.I x SL, D.I /4 x L, D.I. 7/ / 3 4 x L 45, D.I x B BUING L TAPR.75 IN ON DIA. BUINGS L TO L Patent 534 To Install: IPORTANT: DO NOT US LUBRICANTS IN THIS INSTALLATION. Inspect shafts, bushing, and mating hub. Remove all nicks, paint, dirt, grease, etc. from mating surfaces.. Place key in shaft s keyseat. 3. Slide bushing onto shaft and key. Small nd of Taper ust Be Outboard. 4. Slide tapered mating hub over bushing. Align () the shaft key with one of the slots in the mating hub and () the drilled holes in mating hub with the threaded holes in the bushing. 5. Put lockwashers on cap screws and insert one cap screw thru each drilled hole in the mating hub and into the threaded hole in the bushing. 6. Use a Torque Wrench. Tighten all cap screws evenly and progressively in rotation. Torque around all the cap screws as often as necessary until the listed torque value remains on each cap screw. To Remove:. Loosen and remove all cap screws from assembly.. Install one cap screw in each threaded hole in the mating hub. 3. venly torque each cap screw in rotation to force the mating hub off the bushing. Bushing Torque (t.lbs.) L 5 SL 5 L 3 L 55 CAUTION The use of lubricants or excessive wrench torques may cause hub stresses high enough to break the mating hub! 8 P686TBW 6/7

61 SA SureGrip L Series langeless Bushings DINSIONS (In Inches) Bore And Keyseat Dimensions Bore Key Seat Wt. (*) Bore Key Seat Wt. (*) Bore Key Seat Wt. (*) L BUINGS SL BUINGS L BUINGS LPB L L58 L34 L78 L L L8 L36 L4 L56 L38 L76 L L96 / / 7/8 3/6 /4 7/6 / 9/6 PB* x /6 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 /4 x /4 x /4 x /4 x /4 x x 5/3 x 5/3 x 3/6 x 3/6 x 3/ SL SL96 SL58 SL6 SL34 SL36 SL78 SL56 SL SL8 SL36 SL4 SL56 SL38 / 9/6 /6 3/6 7/8 3/6 /4 L BUINGS x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 x x L L96 L58 L6 L34 L36 L78 LPB L L8 L36 L4 L38 L76 / 9/6 /6 3/6 7/8 L BUINGS 3/6 /4 7/6 x x x x x x x PB* /4 x /4 x /4 x /4 x x 5/3 x 3/ L58 L6 L34 L36 L78 /6 3/6 7/8 x 3/6 x 3/6 x 3/6 / x /4 / x / L56 / x /4.8 SLPB SL SL58 SL34 SL78 SL SL SL8 SL36 SL4 SL56 SL38 SL76 SL BUINGS / / 7/8 3/6 /4 7/6 * Approximate weight in lbs. PB bushings are unsplit. PB* x /6 3/6 x 3/3 3/6 x 3/3 3/6 x 3/3 /4 x /4 x /4 x /4 x /4 x x 5/3 x 5/3 x 3/ LPB L78 L L L8 L36 L4 L56 L38 L76 L L96 L58 L6 L34 L36 L78 L56 L L8 L36 L4 L56 L38 L76 7/8 7/8 3/6 /4 7/6 / 9/6 /6 3/6 7/8 3/6 /4 7/6 PB* 3/6 x 3/3 /4 x /4 x /4 x /4 x /4 x x 5/3 x 5/3 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 x x x L L96 L58 L6 L34 L78 L56 L L8 L36 L4 L56 L38 L76 L L96 L58 L6 L34 L36 L78 L56 L3 L38 / 9/6 /6 7/8 3/6 /4 7/6 / 9/6 /6 3/6 7/8 3 3 x 3/6 x 3/6 x 3/6 x 3/6 x 3/6 / x /4 / x /4 / x /4 / x /4 / x /4 / x /4 x x x x x x x x x x x x x P686TBW 6/7 9

62 SA SureGrip Short Bushings Dimensions SureGrip bushings are designed to transmit the rated torque capacity listed in the table below when the cap screws are tightened as indicated. The bushings are stocked in all popular bore sizes, including metric bores, within bore range for a particular bushing. L D B A " T T. ON BUINGS S BUINGS S TO SS INCLUSIV Bush. Torque Capacity (In.Lbs.) ax. Bore SURGRIP ORT BUING TORQU RATINGS AND DINSIONS DINSIONS IN INCHS A B D L Bolt Circle Cap Screws Required S 35, 4/ /4 3 6/4 3 x / S 85, 5/ 3/ /6 77/8 4 x 3 NS, 6 / 7. 4/ 6 8/ 47/8 x 3/ PS 7, 7 / / 4 x 4 WS 5, 8/ / 7/4 4 x 5 SS 4, /4 x 5 Setscrew not standard Available as alteration. See page for Bore and Keyseat information and weights. P686TBW 6/7

63 SA SureGrip Short Bushings DINSIONS (In Inches) Bore and Key Seat Dimensions S76 S56 S376 S356 S476 S376 S356 S476 S456 S576 NS356 NS476 NS456 NS576 NS556 Bore Key Seat Wt. (*) S BUINGS 7/6 3 7/ /6 X X 7/8 X 7/6 X /4 X S BUINGS 3 7/ / /6 7/8 X 7/6 X / X / /4 X /4 /4 X /4 NS BUINGS 3 4 7/ /6 5 X / X / /4 X /4 X /4 / X NS6 6 / X 38.8 * Approximate weight in lbs. PS456 PS576 PS556 PS6 PS676 PS6 PS656 PS7 WS576 WS556 WS676 WS6 WS656 WS7 WS7 WS756 WS8 WS876 WS8 Bore Key Seat Wt. (*) PS BUINGS 4 5 7/ /6 6 / 6 7 /4 X /4 X / X / X / X / / X / X X WS BUINGS 5 7/ /6 6 / / /6 8 / /4 X / X / X / X X X X X X X /4 X / P686TBW 6/7

64 Double Adjustment Tensioner Belt Drive Or Chain Tensioner C B A H G BOLT D G BOLT TAP P N Number DINSIONS IN INCHS A B C D G H N P DA DAL Weight Lbs. The Double Adjustment tensioner (Type DA) permits a full 36 degree rotation of the idler. A second adjustment is obtained by the long slot in the base. The arm is locked in place with an ingenious use of a tapered fit. Tensioning of a drive should follow the installation guideline for the type of drive in question. P686TBW 6/7

65 SureGrip Idler Bushings OR US WITH AVS, PULLYS, SPROCKTS, GARS OR OTHR PRODUCTS DSIGND OR QDTYP BUINGS Wood s SureGrip Idler Bushings are designed to accommodate stock Vbelt sheaves, flatbelt or Timingbelt pulleys, roller or silent chain sprockets, gears or other products that use QD*type bushings. They are equipped with two, permanently lubricated, ballbearing units for long, smooth, troublefree performance. Installation is made simply by slipping the threaded shaft through a hole bored in the support structure and tightening the locking nut. Sheaves, pulleys or other products can be removed without dis mantling the idler bushing. These idler units are available with,,, S or SureGrip bushings. Wood s SureGrip bushings are of the most widely used, tapered, interchangeable type. * U.S.T.. Reg. 43,47 Can. T.. Reg. 3,7 O.L. A L K X DINSIONS IN INCHS A B D H K L N O.L. X Wt. (Lbs.) H BB /3NC BB /3NC BB NC D B BB NC N SBB NC SBB NC BB NC TAPR PR T. ON DIA. quivalent Load Rating (lbs.) Hours Life Basic Rating RP BB BB SBB BB BB BB BB SBB BB Note: The basic rating is the maximum dynamic radial load which will allow a 9% survival rate when running at 33/3 RP for 5 hours. 6 BB BB BB SBB BB quivalent Rating = Basic Rating Hours = Basic Rating3 x,, 3 Hours x 6 x RP/,, Load (Lbs) 3 x 6 x RP P686TBW 6/7 3

66 SureGrip Bushings Installation Instructions The SureGrip tapered, QDtype interchangeable bushing offers flexible and easy installation while providing exceptional holding power. To ensure that the bushing performs as specified, it must be installed properly. Before beginning, make sure the correct size and quantity of parts are available for the installation. The bushing has been manufactured to accept a setscrew over the key and its use is optional. It is packaged with the hardware on sizes to and loosely installed in the bushing on sizes N to S. To Install: IPORTANT: DO NOT US LUBRICANTS IN THIS INSTALLATION!. Inspect the tapered bore of the sheave and the tapered surface of the bushing. Any paint, dirt, oil, or grease UST be removed.. Select the type of mounting (See ig. or ) that best suits your application. ig. ig. To Remove:. Relieve drive tension by shortening the center distance between driver and driven sheaves.. Lift off belts. 3. Loosen and remove cap screws. If the bushings have keyway setscrews, loosen them. 4. As shown below, insert cap screws (three in A through bushings, two in QT and thru W bushings and four in S bushing) in tapped removal holes and progressively tighten each one until mating part is loose on bushing. (xception: If mating part is installed with cap screw heads next to motor, with insufficient room to insert screws in tapped holes, loosen cap screws and use wedge between bushing flange and mating part.) 5. Remove mating part from bushing and, if necessary, bushing from shaft. 3. STANDARD OUNTING: Install shaft key. (Note: If key was furnished with bushing, you must use that key.) Install bushing on clean shaft, flange end first. If bushing will not freely slide on the shaft, insert a screwdriver or similar object into the flange sawcut to act as a wedge to open the bushing s bore. Caution: xcessive wedging will split the bushing. If using the setscrew, tighten it just enough to prevent the bushing from sliding on the shaft. Caution: Do not overtighten setscrew! Slide sheave into position on bushing aligning the drilled holes in the sheave with the tapped holes in the bushing flange. (Note: Install thru S bushings so that the two tapped holes in the sheave are located as far away as possible from the bushing s sawcut.) Loosely thread the cap screws with lockwashers into the assembly. DO NOT US LUBRICANT ON TH CAP SCRWS! 4. RVRS OUNTING: With large end of the taper out, slide sheave onto shaft as far as possible. Install shaft key. (See shaft key note in #3 above.) Install bushing onto shaft so tapered end will mate with sheave. (See wedging note in #3 above.) If using the setscrew, tighten it enough to prevent the bushing from sliding on the shaft. Caution: Do not over tighten setscrew! Pull the sheave up on the bushing, aligning the drilled holes in the bushing flange with the tapped holes in the sheave. Loosely thread the cap screws with lockwashers into the assembly. DO NOT US LUBRICANT ON TH CAP SCRWS! 5. Using a torque wrench, tighten all cap screws evenly and progressively in rotation to the torque value in Table. There must be a gap between the bushing flange and sheave hub when installation is complete. DO NOT OVRTORQU! DO NOT ATTPT TO CLOS GAP BTWN BUING LANG AND AV HUB! SURGRIP BUINGS SCRW TIGHTNING INORATION Tapered Bushing QT A S S S S N NS P PS W WS S SS Size & Thread of Cap Screw /4 x 4 /4 8 6 / 3 9/6 7/8 9 7/ /4 7 /4 7 t.lbs. To Apply With Torque Wrench CAUTION: The tightening force on the screws is multiplied many times by the wedging action of the tapered surface. If extreme tightening force is applied, or if a lubricant is used, bursting pressures will be created in the hub of the mating part P686TBW 6/7

67 The Power Of One, The Strength Of any. OTHR PRODUCT SOLUTIONS RO ALTRA INDUSTRIAL OTION Our comprehensive product offerings include various types of clutches and brakes, overrunning clutches, engineered bearing assemblies, gearing and gear motors along with linear products, belted drives, couplings and limit switches. With thousands of product solutions available, Altra provides true single source convenience while meeting specific customer requirements. any major Os and end users prefer Altra products as their choice for performance and reliability. LCTRIC CLUTCHS AND BRAKS Inertia Dynamics atrix Stromag Warner lectric HAVY DUTY CLUTCHS AND BRAKS Industrial Clutch Stromag Svendborg Brakes Twifl ex Wichita Clutch OVRRUNNING CLUTCHS ormsprag Clutch arland Clutch Stieber NGINRD COUPLINGS AND UNIVRSAL OINTS Ameridrives Bibby Turbofl ex Guardian Couplings Huco Lamifl ex Couplings Stromag TB Wood s GAR DRIVS Bauer Gear otor Boston Gear Delroyd Worm Gear Nuttall Gear GAR OTORS Bauer Gear otor POWR TRANSISSION COPONNTS LINAR ACTUATORS AND CONTROLS Warner Linear NGINRD BARING ASSBLIS Kilian AIR OTORS Huco BLTD DRIVS AND AVS TB Wood s GARD CA LIIT SWITCHS Stromag