Flexible Drive Couplings

Transcription

1 leible Drive Couplings INDEX: agnaloy Coupling Designeatures... Load Lock Design... Radial Lug Design... Lug Design Comparisons... Premiium leible Drive Couplings... Performance Specifications... Dimension Specifications...4 Standard Bore & Keyway Combinations...5 Bore Tolerances...5 Additional Specifications...5 Splined Couplings...6 Clamp Type Couplings...6 Steel Bushed Couplings...6 Splined Coupling Specifications...7 Clamp Type Coupling Specifications...7 Insert Selection Guide...8 Service actors & Load Characteristics...9 Selection ethod...9 Installation...0 Recommended Torques for asteners... is-alignment Capabilities... Technical Bulletin & Notes... P 90 Coupling... Drive Lug eatures... Performance Specifications...4 Dimensional Specifications...4 Bore Tolerances...4 Bore & Keyway Combinations...5 Insert aterials...5 Other agnaloy Products...6 magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a: Catalog No. C0 005 agnaloy Coupling Co.

2 agnaloy Coupling Design eatures Load-Lock Design is simple and effective. The drive-lug configuration is tapered from top to base, as are the mating lugs of the opposing coupling hub. nder load, the insert conforms to the tapers, inter-locking the two hubs. This loadlock design protects bearings and equipment by eliminating end thrust in both directions... and it requires only one set-screw in each hub. Radial Lug Design is logical and efficient. The most common failure of an elastomeric insert type drive coupling is hysteresis failure of the elastomeric element - breakdown of the elastomer due to cyclical overworking and associated heat generation. agnaloy Coupling s drive lugs are in a true radial orientation. Applied forces are evenly distributed in the compressive direction only, eliminating the heat generating radial component. True compressive loading reduces internal heat generation and improves elastomer life. AGNALOY COPLING DESIGN nder loaded conditions, the resultant forces applied on the element segments are evenly distributed in the compressive direction only. This results in no radial forces to multiply the internal heat generation. r c c r CONVENTIONAL DESIGN A nder loaded conditions this jaw design results in the applied forces eerting components in the compressive and radical directions. These forces change direction and magnitude along the jaw arc which greatly increase the internal movement of the element which causes heat generation. c r c r CONVENTIONAL DESIGN B This more conventional straight sided jaw design also eerts component forces in the compressive and radial directions when under load. The radial component is outward (acting to etrude the element) and changes in magnitude only, as does the compressive component, along the jaw surface. The component forces resulting from this design also causes increased internal movement in the element. magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a: agnaloy is a registered trademark of the Douville Johnston Corp.

3 Premium leible Drive Couplings agnaloy is the original lightweight, heavy-duty fleible drive coupling. Light weight magnesium construction makes agnaloy couplings 76% lighter than cast iron and 6% lighter than aluminum units... and they re stronger than either! The benefits are many... Reduced loads on bearings, shafts and pumps, for longer component life. Easier handling and installation. Rust proof and corrosion resistant. agnaloy s close machining tolerances (TIR of.00 ) assures vibration - free operation and easy, accurate alignment without need for special tools. Solid magnesium alloy permanent mold castings are heat treated and offer the highest strength-to-weight ratio available. Coupling odel Coupling Performance Specifications aimum Bore Wr lb.- ft Insert Number 70N 70 70H 70N 70 70H 70N 70 70H 470N H 570N H 670N H 770N H 870N H 970N 970 Rated Torque lb.- in , , ,05.,04.,056.,584.5,68.9,94.8,9. 6, , ,40. 4,840.,69.8 7, ,099.5,889.4,84. 47,06. 47,84. 7,76.5 Torsional Rigidity lb-indeg ,57 676,50,960,805,04 -, ,48 - Horse Power Rating@ 00 rpm 00 rpm 800 rpm , ,54.5,77.9,066.8 magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

4 Dimensional Specifications odels 00, 00, 00, 400 A B C D E G W X T agnaloy Coupling Dimensional Specifications T X W C B TOLERANCES: Place Decimals +.0 Place Decimals +.00 D E A G odel 500 T X W A B C D E G W X T X*: aimum Space between shaft ends to allow full shaft engagement in Hub Bore. W*: inimum spacing between shaft ends. C B * Given for reference only. TOLERANCES: Place Decimals +.0 Place Decimals +.00 D E A G odels 600, 700, 800, 900 T X W A B C D E G W X T C B TOLERANCES: Place Decimals +.0 Place Decimals +.00 D E A G magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

5 Bore & Keyway Combinations Standard Bore and Keyway Combinations agnaloy Standard Bore & Key Combinations odel BoreKey odel Code Code Bore Key Shaded Area: AGA semi-standard bore key combinations. Part Number sage: agnaloy Coupling Hub part numbers may be specified using the following format: Start with letter designating agnaloy, followed by digit odel Code (00, 00, etc.), then the specific 5 digit Bore Key Code. Eample: odel 500 hub with a 8 bore and 56 keyway would be specified as: No bore hubs are designated as R code, ie: 500R. agnaloy Standard Bore & Key Combinations odel Code BoreKey Code odel Bore Key Bore Tolerances Over Include Tolerance Additional Coupling Specifications odel Number aimum Bore Complete Coupling Appro. Wght. (Solid Hub) Number of Drive Lugs Hub ovement for Insert Removal Basic Insert Number magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

6 Splined Couplings agnaloy couplings are available with a variety of special features which include splined bores. The Splined Coupling Specifications chart on page 7 shows several in-house splines available for quick delivery. any additional splined bores are available upon contacting the factory, including straight side PTO type splines and metric splines. The Clamp-Type Coupling utilizes the basic agnaloy coupling with the addition of the clamp feature. Developed to compensate for variations in spline formation methods and tolerances. Assures centering of the coupling and positive retention on the shaft. The clamp feature is suggested for all splined couplings, but is also available in smooth bored and keyed models. agnaloy s Steel Bushed Splined Bore* Coupling combines all the design and lightweight features of the agnaloy Coupling with the added spline tooth strength and wear resistance of steel. nder normal conditions the standard Splined Bore coupling will perform satisfactorily and the addition of the Clamp eature compensates for various fit conditions. When heavy cyclic loads, reverse loading and high torque loads eist in combination with fit variations, spline tooth failures and fretting can be corrected by utilizing agnaloy s steel bushed coupling. Of course, to achieve optimum benefits, agnaloy s clamp feature is recommended - assuring accurate centering and positive retention of the coupling on the shaft. *Although the steel bushing feature was designed primarily for spline bores, it is also available smooth bored and keyed. magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

7 Spline & Clamp Specifications Splined Coupling Specifications Spline Size Number of Teeth Pitch Spline Code Pressure Angle (Degrees) SAE Design A D,E B C BB CC ajor Diameter (Inches) Std. Coupling Available odel Sizes Steel Bushed Coupling Bushing Available O odel Sizes * *NOTE: With odel Bushing O.D. is.65 Spline Type Identifier Code -- A = Spline B = Steel Bushing Spline C = Clamp Type Part Number sage: agnaloy Splined Coupling part numbers may be specified using the following format: Start with letter designating agnaloy, follow with digit model code (00, 00, etc.), net use single letter Spline Type Identifier Code ( A for regular spline or B for steel bushing) then the specific 4 digit spline code. If a clamp type coupling is specified - use the letter code C after the spline code. Eample: odel 00 hub with tooth 6 splined bore, 00A6; same as above with steel bushing, 00B6; same as above with steel bushing and clamp, 00B6C. Clamp Type Coupling Specifications Coupling odel * Bolt Location Z Y & Bolt Size * odel 900 utilizes two bolt clamp design. Torque Spec in. lbs in. lbs. 0-0 in. lbs. 0-0 in. lbs in. lbs. 5-6 ft. lbs. 5-6 ft. lbs ft. lbs ft. lbs. Optional Clamp Bolt Z Y Optional Steel Bushing Bushing O magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

8 Insert Selection Guide agnaloy Coupling s full range of fleible inserts permit custom design performance for a wide range of applications. All insert materials offer complete electrical insulation, as agnaloy s design eliminates all metal-to-metal contact. Part Number sage: agnaloy Coupling Insert part numbers may be specified using the following format: Start with letter designating agnaloy followed by digit insert model size (70, 70, etc.) then the specific material code letter. If an optional durometer is being specified, after the material code letter supply the durometer number divided by 0. EXAPLES: rethane insert for odel 00, 70; 80 Duro Neoprene for odel 00, 70N8. Neoprene (Code N) - Black material - Standard material with agnaloy Coupling. Good general purpose material offering good resiliency and load capabilities. Temp range - to +50 o (-4 o C to = o C) optional 80A durometer (painted gold) and 90A durometer (painted silver) are available for slight increased load capability and less resiliency. Nitrile (Buna N) (Code B) - Painted blue - Ecellent material with petroleum products. Ecellent compression set and abrasion resistance characteristics. Temp range -60 o to +50 o (-5 o C to + o C). rethane (Code ) - Yellow Ecellent mechanical and physical properties. Offers good medium duty durability and resiliency. rethane tends to soften in higher temperatures and humid conditions. Temp Range - to +50 o (-4 o C to +66 o C). Viton (luorocarbon) (Code V) - Red material - Ecellent fluid compatibility and high temperature characteristics. Good compression set and resiliency. Temp range - 0 o to +50 o (-9 o C to +77 o C). Hytrel (Code H) - Blue-green material - Superior physical and mechanical properties and ecellent fluid compatibility and high temperature characteristics. Hardness (50D) approaches that of plastic and offers little resiliency. Ecellent performance under heavy duty conditions. Temp range -65 o to +00 o (-54 o C to +49 o C). Other materials are available for special applications. Consult factory for recommendations and availability. magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

9 Insert Selection Guide Service actors - Load Characteristics Type of Prime over Load Classification Standard otor or Turbine High Torque otor I.C. Engine 6 or more cyl. I.C. Engine less than 6 cyl. niform () oderate () Heavy (H).0.5.0*.5.0.5*.5.0*.5*.0*.5*.0* Drive nit Agitators Blowers Compressors Centrifugal Rotary Reciprocating Conveyors Reciprocating Screw Shaker Cranes & Hoists Crushers Elevators reight & Pass. ans Centrifugal Propeller Cooling Tower Generators Welding ills achine Tools iers Paper ill achinery Pumps Centrifugal Rotary Reciprocating On Injection olding Equip. Screens Air & Water Washing reight & Pass. Stokers Tetile achinery Woodworking achinery Winches niform Load: Steady loading, non-reversing, torque does not eceed rating. oderate Load: neven loading with moderate shock, frequent starts, infrequent reversals, peak torque may eceed average rate of prime mover by 5%. Heavy Load: neven loading with heavy shock, frequent reversals, peak torque may eceed average rating of prime mover by 50%. *Recommend use of rethane or Hytrel Insert. Load Sym. H * H H * H * H H H * H * H * H H * NOTE: Above service factors are intended for use as a general guide only. * Recommend use of Steel Bushing and Clamp with Splined Bores.... Selection ethod Several specifics must be considered to make the best choice of couplings: A. Type of prime mover and load characteristics (see table above). B. Shaft diameter and key size or spline configuration (No. of teeth, pitch ratio, pressure angle). C. Horsepower rating of loads to be transmitted. D. aimum operating speed (rpm). E. aimum operating misalignment.. Clearance limitations. Calculate effective hp00 rpm by use of table above and select the minimum size couplings recommended. VERIY YOR SELECTION: A. Check for maimum bore size. B. Check dimensions for adequate clearance. C. Indicate any special insert specification andor coupling coating for environmental protection, if required. Equation: Effective HP per 00 RP = rated HP Service actor 00RP Eample: 50 HP 4 cyl. Diesel Engine Driving Reciprocating Irrigation Pump operating at 50 RP Service actor =.0 (Hytrel Insert recommended) Eff. HP per 00 RP = 50 HP RP =.85 HP00 RP odel 600 rating with Hytrel Insert is.7 HP00 RP magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

10 Installation Instructions Shaft spacing should be within range given by dimensions W and X as shown in charts on page 4. Position each hub on proper size shaft - agnaloy couplings are bored to standard push fit tolerances, if a tight fit eists check shaft for burrs. aimum benefits are obtained with hubs positioned to allow complete shaft engagement within bore. However, some equipment designs do not permit this condition - maimum shaft engagement should be utilized in any case. Alignment - Place a straight edge (scale) at top and side of coupling. se a.005 inch feeler gauge under scale for final inspection. This will indicate accurate parallel and angular alignment. agnaloy s precision tooled outside surfaces permit this simple, but accurate alignment method. Secure equipment mounts and recheck alignment for movement. Install the insert in the coupling positioning hubs in contact with lip around outside of insert. Before tightening set screws, run the coupling and check for separation of hubs or creep. Recheck alignment and tighten set screws. With the Steel BushedClamp type couplings, to facilitate installation on the shaft, it may be necessary to slightly loosen the set-screw over the keystock. When securing the coupling to the shaft, first tighten the clamp bolt, then tighten the set--screw against the keystock. magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

11 is-alignment Capabilities agnaloy couplings offer four-way fleibility (parallel, angular, aial and torsional) and require no lubrication. They are easily installed and properly aligned without use of special tools or equipment - a straight edge and he wrench are the only tools required. agnaloy s insert reduces noise and vibration and permits needed fleibility for proper operation within alignment capabilities. Recommended Torques for asteners odel Set Screw in. lbs in. lbs in. lbs in. lbs in. lbs in. lbs in. lbs in. lbs ft. lbs. Clamp Screw 0-40 in. lbs in. lbs. 0-0 in. lbs. 0-0 in. lbs in. lbs. 5-6 ft. lbs. 5-6 ft. lbs ft. lbs ft. lbs. Intended as a general guide for fastener torques with agnaloy Couplings. Perfect alignment of equipment shafts, in most cases, is impractical to obtain or maintain, and misaligned equipment produces ecess stress on bearings and coupling. agnaloy s insert design will accept misalignment strain and, when ecessive, will cause insert wear as a visual and audible indication of misalignment problems. However, agnaloy s inserts are inepensive and easily replaced; under normal conditions the insert seldom requires replacement. is-alignment Capabilities aimum o Angular is-alignment.05 in. aimum Parallel is-alignment magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

12 Technical Bulletin & Notes Keystock Interference with Drive Lug Since the agnaloy Coupling keyway in a bored and keyed hub is broached between the drive lugs, there is a potential for interference with the keystock of the drive lugs and the driver lugs of the driven hub. Interference will result when ALL the following conditions eist: A) The shaft diameter is GREATER than listed below. B) T h i s shaft etends into the hub insert core area. C) The keystock on this shaft etends with the shaft. The interference condition can be corrected by shortening the keystock so it does not etend into the coupling hub insert core area. Interference Potential eists when shaft diameters are greater than shown in this chart odel Size Shaft Diameter Key Size Area of Interference Cut Keystock even with this Surface ailure to correct this condition will result in assembly difficulty and could cause damage to the drive or driven equipment. N otes magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

13 Powdered etal P90 Couplings The Strong, High Quality, Low Cost, Powdered etal Coupling from agnaloy When your priorities for a coupling are economy and strength... specify the all-new agnaloy Type P 90. The P 90 is made from high-density powdered metal and is available in standard bores up to 8 inch maimum. Double set screws are standard in all bores inch and over. The set screws are placed over the keyway and at a 45 o angle to the keyway to allow greater hoop-stress generation and maimum shaft gripping. The increased drive lug surface area on the P 90 provides low unit loads on insert drive elements while insuring more rapid heat dissipation. agnaloy s eclusive insert design allows easy installation and replacement without hub removal. The drive lug design provides even compressive loading with no radial loading of insert drive elements It is a well established fact that the major cause of failure in an elastomeric insert type drive coupling is hysteresis failure which results from overworking the insert by application of cyclic loads and the associated heat generation. These cyclic loads can be internal in origin as a result of coupling design (see page ) and when coupled with eternally applied loads can greatly reduce elastomer life. Specifying agnaloy s Type P Coupling with radial designed drive lugs results in true compressive loads and improved insert life. magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

14 P 90 Specifications odel P 90 Performance Specifications aimum Bore inimum Bore Insert Number Torque Rating (in.lb.) HP Rating Per 00 RP Torsional Rigidity (in.lb.deg.) Complete Coupling Appro. Weight (lb) Solid a. Bore Wr (lb. t. ) (Solid) P097N7 P0909 P090H odel P 90 Dimensional Specifications T W B A - B - T - W - X - Y - Over all length (Assembled) -.78 Outside Diameter -.5 Set Screw 4-0 NC, places Distance between shaft ends 6 min. Distance between shaft ends 4 ma. Hub movement required for insert removal (.0 total) Y X A N otes magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

15 P 90 Specifications odel P 90 - Standard Bore - Keyway Sizes (Per AGA Class, Clearance it) Part Number P09004N P P P P P P P P P P P P P P Bore & Keyway Combinations No.Key Bore Size** Key Width No Keyway *Shaded combinations are Semi-special - See price sheet **Other BoreKeyway combinations available. Consult factory for quotation. Key Depth Set Screw Size Quantity 4-0 NC 4-0 NC 4-0 NC 4-0 NC 4-0 NC 4-0 NC 4-0 NC 4-0 NC 4-0 NC 4-0 NC 4-0 NC 4-0 NC 4-0 NC 4-0 NC 4-0 NC odel P 90 Bore Tolerances eatures Bore Key Width Key Depth Tolerance Key Depth Key Width Bore As with agnaloy s standard line of couplings, insert elastomer selection allows variable performance characteristics. Insert design eliminates metal-to-metal contact and assures electrical isolation of shafts. Nitrile, 70A Durometer... Standard elastomer material offering ecellent resistance to petroleum products and superior compression set characteristics. rethane, 90A Durometer... Ecellent mechanical and physical properties. Note: rethane material tends to soften when eposed to elevated temperatures or humid conditions Hytrel, 50D Durometer... Superior mechanical and physical properties and offer ecellent fluid compatibility and high temperature characteristics. Additional insert materials available upon request from factory. See page 8 for additional information on insert selection. magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a:

16 ake the Connection with... Whatever your luid Power nit needs, magnaloy has the products to keep you connected. leible Drive Couplings Top-of-the-line magnesium couplings are lighter, yet stronger than either cast iron or aluminum. They also offer better corrosion resistance and easier handling. Pumpotor ounts Precision machined aluminum & custom steel pumpmotor mounts directly connect the motor and pump while ensuring accurate shaft alignment and enclosing the coupling. Vertical and horizontal models readily available from stock. P 90 Couplings Economical P-90 Iron Powder Couplings have long lasting nitrile, hytrel or urethane inserts. Double set screws give ecellent gripping power. agnaloy Hydraulic Bar anifolds & Accessories Complete line of inline Bar anifolds, Subplates, Cover Plates, Valve Adaptors, Integrated Circuit anifolds, and Accessories to make the design and fabrication of Hydraulic Circuitry simple and easy. Wide range of sizes include: D0, D05, D05H & D08 in aluminum and steel with ports available in SAE, NPT, BSPP, and BSPT styles. Custom design and fabrication also available, consult factory. Accessories iller Breather Adaptors, iller Breathers, Reservoir langes, Suction Strainers, Gauge Isolators, Liquid Level Gauges, odular O-Ring Kits. Rod End Couplers Two models of accurately machined high tensile cylinder rod end alignment couplers offer 7 o or 0 o spherical and 8 parallel misalignment capabilities. agnaloy Reservoirs & Reservoir Accessories agnaloy offers a complete line of standard reservoirs and reservoir accessories. In addition, we offer custom reservoir fabrication to meet our customer specific needs. Reservoirs accessories such as Clean Out Covers and SAE Couplings are available for the do-it-yourself reservoir manufacturer agnaloy Pressure Switch Pressure Sensing switch capable of sensing up to three () separate pressures. Each sensor is eternally independently adjustable from 00 to 4000 psi. Viton seals provide wide fluid compatibility range. magnaloy coupling company P.O. Bo 455 Alpena, I A Division of Douville Johnston Corporation a: