PowerGrip Timing Belt Drives

Transcription

1 PowerGrip Timing Belt Drives Single Sided Belt Drive Systems PowerGrip Timing Belt drives operate on the tooth-grip principle, with the molded teeth the belt designed to make positive engagement with the matching grooves on the pulleys. Gates PowerGrip Timing belts have helically-wound fiberglass tension members embedded in a Neoprene body with the belt teeth faced with a tough wear-resistant nylon fabric. The three principal dimensions in inches, shown below, are used to specify a timing belt. 330 XL Wide Belt pitch is the distance in inches between two adjacent tooth centers as measured on the pitch line the belt. Belt pitch length is the total length (circumference) in inches as measured along the pitch line. The theoretical pitch line a Timing belt lies within the tensile member. The three principal dimensions used to specify a pulley number grooves, pitch and belt width in inches are shown below. 20 XL 025 Number grooves Belt Width (0.25 ) NOTE: For drive design procedure, see page 12. When ordering MXL Timing belts, please specify pitch and number teeth. Diameter (circular pitch) Outside Diameter MXL Reference Dimensions Add to pulley OD for approx. diameter over belt dimension Belt Line Sprocket Circle XL Reference Dimensions Add to pulley OD for approx. diameter over belt dimension 50

2 PowerGrip Timing Belt Drives PowerGrip Belt s and Widths No. 29MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL No. 62MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL (.080 in) Belt s No. 94MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL Stock s are denoted by a. All other sizes, contact Gates Customer Service for availability. No. 160MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL No. 286MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL MXL Stock Belt Widths Belt Width Code Belt Width 012 1/8 (0.125) 019 3/16 (0.187) 025 1/4 (0.250) 51

3 PowerGrip Timing Belt Drives PowerGrip Belt s and Widths Continued XL (.200 in) Belt s Number Number Number Number Number Number Description Teeth 42XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL XL Stock s are denoated by a. All other sizes, contact Gates Customer Service for availability. Belt Width Code XL Stock Belt Widths Belt Width 025 1/4 (0.250) 037 3/8 (0.375) 52

4 PowerGrip Timing Belt Drives Belt Selection Guide 38 53

5 PowerGrip Timing Belt Drives Belt Width Selection Tables MXL (.080 in) The following table represents the torque ratings for each belt in its base width at the predetermined number grooves, pitch diameters and rpm. These ratings must be multiplied by the appropriate width factor and applicable belt length factor to obtain the corrected torque rating. (See Step 4 Drive Selection Procedure on Page 12). Rated Torque (oz-in) For Small Sprocket - 1/8 in. Top Width Number Grooves (mm) Diameter rpm Faster Shaft Belt Width 1/8 3/16 1/4 5/16 3/8 7/16 1/2 Width Multiplier Belt Width Selection Tables XL (.200 in) Belts Rated Torque (lb-in) For Small Sprocket - 1/4 in. Top Width Number Grooves (mm) Diameter rpm Faster Shaft Belt Width 1/4 5/16 3/8 7/16 1/2 Width Multiplier

6 PowerGrip Timing Belt Drives Twin Power Twin Power Belt Drive Systems Twin Power Belts are similar in construction to standard synchronous belts, including nylonfaced teeth on both sides. This construction uses essentially the same design parameters as standard synchronous belts. Gates XL Twin Power Timing belts have helically-wound fiberglass tension members embedded in a Neoprene body with the belt teeth faced with a tough wear-resistant nylon fabric. A unique feature this construction is that Gates Twin Power belts can transmit their full rated load on either the front or back side. The three principal dimensions, in inches, shown below, are used to specify a Twin Power Timing belt. TP 330 XL 025 Twin Power Wide Belt pitch is the distance in inches between two adjacent tooth centers as measured on the pitch line the belt. Belt pitch length is the total length (circumference) in inches as measured along the pitch line. The theoretical pitch line a Timing belt lies within the tensile member. NOTE: For drive design procedure, see page 24. XL Reference Dimensions.200 in..020 in..120 in. Add (3.66mm) to pulley OD for approx. diameter over belt dimension 55

7 PowerGrip Timing Belt Drives Twin Power PowerGrip Belt s and Widths No. XL Timing Belt No. No. No. TP124XL TP126XL TP128XL TP130XL TP132XL TP134XL TP136XL TP138XL TP140XL TP142XL TP144XL TP146XL TP148XL TP150XL TP152XL TP154XL TP156XL TP158XL TP160XL TP162XL TP164XL TP166XL TP168XL TP170XL TP172XL TP174XL TP176XL TP178XL TP180XL TP182XL TP184XL TP186XL TP188XL TP190XL TP192X TP194XL TP200XL TP202XL TP204XL TP206XL TP210XL TP212XL TP214XL TP218XL TP220XL TP222XL TP226XL TP228XL TP230XL TP232XL TP234XL TP236XL TP240XL TP244XL TP246XL TP250XL TP254XL TP258XL Stock lengths are denoted by a. All other sizes, contact Gates Customer Service for availability. TP260XL TP262XL TP264XL TP266XL TP268XL TP270XL TP274XL TP280XL TP286XL TP290XL TP296XL TP300XL TP306XL TP310XL TP316XL TP320XL TP322XL TP330XL TP338XL TP340XL TP344XL TP348XL TP350XL TP352XL TP362XL TP370XL TP380XL TP384XL TP390XL TP400XL TP412XL TP420XL TP424XL TP432XL TP438XL TP444XL TP450XL TP454XL TP460XL TP468XL TP480XL TP492XL TP498XL TP500XL TP506XL TP524XL TP570XL TP580XL TP592XL TP612XL TP630XL TP672XL TP690XL TP770XL TP850XL Belt Width Code XL Stock Belt Widths Width 025 1/4 (0.250) 037 3/8 (0.375) 56

8 PowerGrip Timing Belt Drives Pulley Specification Tables MXL and XL Pulleys A F-CL F C L B F-CL F C L M 6FC 6 2 F E E D M O.D. E D O.D. L H O.D. A A B 6F 2F C C Sprocket Number No. Grooves Diameter OD 1/8 in Wide Belts (MXL012) Dimensions Flange Design Ref. W L H E Plain Bore* *Plain bore style stocked in smallest bore. **10-16 groove pulleys have 1 ea. set screw, all others have 2 ea. set screws at 90 degrees. ***Gold Iridite Finish NOTE: See Synchronous Belt Drives Sprocket Specifications section, Page 76, for a complete table stock and non-stock pulley diameters. For non-standard designs contact Gates Made-To-Order Metals Team at (800) Min Max Set Screws ** Wt. (lb) Material *** 10MXL FC AL 11MXL FC AL 12MXL FC AL 14MXL FC AL 15MXL FC AL 16MXL FC AL 18MXL F AL 20MXL F AL 21MXL F AL 22MXL F AL 24MXL F AL 28MXL F AL 30MXL F AL 32MXL F AL 36MXL F AL 40MXL F AL 42MXL F AL 44MXL F AL 48MXL F AL 60MXL F AL Sprocket Number No. Grooves Diameter OD 1/4 in Wide Belts (MXL025) Dimensions Flange Design Ref. W L H E Plain Bore * Min Max Set Screws ** Wt. (lb) Material *** 10MXL FC AL 11MXL FC AL 12MXL FC AL 14MXL FC AL 15MXL FC AL 16MXL FC AL 18MXL F AL 20MXL F AL 21MXL F AL 22MXL F AL 24MXL F AL 25MXL F AL 28MXL F AL 30MXL F AL 32MXL F AL 36MXL F AL 40MXL F AL 42MXL F AL 44MXL F AL 48MXL F AL 60MXL F AL 72MXL AL 80MXL AL 90MXL AL 100MXL AL 120MXL AL 57

9 PowerGrip Timing Belt Drives Pulley Specification Tables MXL and XL Pulleys - Continued 1/4 in Wide Belts (XL025) No. Diameter Dimensions Sprocket Flange Design Plain Bore * Set Wt. Number Grooves OD Ref. W L H E Min Max Screws ** (lb) Material *** 10XL F AL 11XL F AL 12XL F AL 13XL F AL 14XL F AL 15XL F AL 16XL F AL 18XL F AL 20XL F AL 21XL F AL 22XL F AL 24XL F AL 26XL F AL 28XL F AL 30XL F AL XL (0.200 in) PowerGrip Timing Pulleys 3/8 in Wide Belts (XL037) No. Diameter Dimensions Sprocket Flange Design Set Approx. Number Grooves OD Ref. A B C D E F M F-CL Bushing Bore Sizes* Size Min Max Screws ** Wt. (lb) Material *** 10XL F MPB ST 11XL F MPB ST 12XL F MPB ST 13XL F MPB AL 14XL F MPB ST 15XL F MPB ST 16XL F MPB ST 17XL F MPB AL 18XL F MPB ST 19XL F MPB AL 20XL F MPB ST 21XL F MPB ST 22XL F MPB ST 23XL F MPB AL 24XL F MPB ST 25XL F MPB AL 26XL F MPB AL 28XL F MPB ST 30XL F MPB ST 32XL F MPB AL 32XL A S 36XL MPB AL 36XL A S 40XL MPB AL 40XL B S 42XL MPB AL 42XL B S 44XL MPB AL 44XL B S 45XL MPB AL 48XL MPB AL 48XL B S 50XL MPB AL 60XL MPB AL 60XL B S 72XL MPB AL 72XL B S *Plain bore style stocked in smallest bore. **All pulleys have 2 set screws at 90 degrees ***AL Pulleys Have Clear Anodized Finish NOTE: See Synchronous Belt Drives Sprocket Specifications section, Page 76, for a complete table stock and non-stock pulley diameters. For non-standard designs contact Gates Made-To-Order Metals Team at (800)