Universal Joints
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Universal Joint High Shock and Overload Capacity Long Life Heat Treated Alloy Steel Components Minimal Lubrication Required Virtually BacklashFree Quick Delivery Superior Technology www.renold.com

16 AM Advantages and Design: Typical Applications Advantages and Features Typical Applications • Domestic manufacture Following is a partial list of applications for the Renold Universal Joint. • High torque capacity • Long bearing life Agitators Packaging • High operating angle capability Balancing Machines • One piece yoke and bearing housing construction Blowers and Fans • Eliminates unnecessary bolted connections and serrations in yokes Compressors • Heat treated alloy steel components Conveyors • Ideal loading across entire bearing length due to balanced deflection between yokes and...

Construction: Yoke Assembly and Bearing Design Basic Designs The Renold Universal Joint is available in seven basic bearing designs: 1000 Series Yoke assembly parts furnished by domestic manufacturers. Sizes RA1310-RA1550: Needle bearing design. Bearing caps are retained by snap rings. Sizes RA1610-RA1880: Needle bearing design. Bearing caps are retained by bolts. Sizes RA1990: Uses two rows of roller bearings. Bearing caps are retained by snap rings. Lube tting in center of cross. 2000 Series Sizes RA058-RA100: Needle bearing design. Lube tting in center of cross. Sizes RA120-RA225: Uses...

17 AM Selection Information and Speed Limits Table 1 RA1310 - RA225 RA250 RA250 3200 RA285 RA315 RA350 A RA390 RA435 A I. Speed Limit Based on Limits of Mass Acceleration When universal joints are operated at any angle greater than zero, the center section of the universal joint always runs irregularly, being accelerated and decelerated twice in every revolution. The maximum values of mass acceleration torque arising here are dependent on the operating speed and angle of deviation ß and upon the moment of inertia of the center shaft section [ RPM x A ]. To ensure smooth running of the...

Selection Procedure See pages 26-27 for Application Data sheets for easy selection. Four types of torque ratings are given for each joint size. Universal Joint Selection I. Calculate application torque (Ta) and selection torque (Ts). Ta = HP x 63025 ( lb. x in. ) N Endurance torque (Te) is the normal rating for fully reversing torque based on material strength. One way endurance torque (Tow) is the normal rating for pulsating one way torque based on material strength. Life torque (TL) is the bearing life rating of the universal joint. This torque is based on the B-10 life of the universal...

17 AM Axial travel of the telescopic spline on ST and FT designs under torque results in axial forces being applied to the support bearings. These forces are a function of the spline coefcient of friction, operating torque, operating angle, and spline pitch diameter per the following formula. F axial = 2T(µ)(COS A) PD F axial = Axial Force T= Operating Torque µ= Coefcient of Friction (.11 to .15 for lubricated steel on steel, contact Renold for other coatings) A= Operating Angle (degrees) PD = Table 3: Service Factors Load Driven Equipment Continuous Non-Reversing Drivers AC Motors Turbines...

Engineering Data Series Metric Sizes RA58 - RA120 L K øA S øC øB β øD Type ST – Telescopic Shaft Sizes RA58 - RA120 E F L K øA øC øB Type SF – Fixed Length Shaft Sizes RA58 - RA120 E F K øA S øC øB E F 10 WE8491 APT MetalMillBroch.indd 10 45° 60° DBC 4 Bolt Flange Design β Type SC – Short Coupled Shaft Sizes RA58 - RA120 90° øH β øD øH øH DBC DBC 6 Bolt Flange Design 8 Bolt Flange Design 10 4/2/09 9:17 AM WE8

Engineering Data Series Metric Sizes RA120HD - RA225 L K øA S øC øB β øD Type ST – Telescopic Shaft Sizes RA120HD - RA225 E F L K øA øC øB E F β øD Type SF – Fixed Length Shaft Sizes RA120HD - RA225 L K øA S øC øB β Type SC – Short Coupled Shaft Sizes RA120HD - RA225 E F 45° 36° øH DBC øH 10 Bolt Flange Design 12 WE8491 APT MetalMillBroch.indd 12 DBC 8 Bolt Flange Design 12 4/2/09 9:17 AM WE8

Engineering Data Series Metric Sizes RA250 - RA435 L K S X øA β øB øD Y E Type ST – Telescopic Shaft Sizes RA250 - RA435 øC F L K X øA β øB øD Y Type SF – Fixed Length Shaft Sizes RA250 - RA435 øC E F 45° 45° 36° 36° 22.5° 18° DBC øH øH 8 Bolt Flange Design with Face Key WE8491 APT MetalMillBroch.indd 14 øH 8 Bolt Flange Design Optional Face Pad Design 14 DBC DBC 10 Bolt Flange Design with Face Key øH DBC 10 Bolt Flange Design Optional Hirth Radial Tooth Design 14 4/2/09 9:17 AM WE8

Engineering Data Series Metric Sizes RA440 - RA920 L K ØA ØB S X DBC ØD Y 45° 25.7° E ØC F Type FT TELESCOPIC SHAFT Shaft TYPE FT- – Telescopic SIZES U3440 - U3920 Sizes RA440 - RA920 ØH ØH 8 - HOLE ØA ØB DBC L 14 - HOLE K X ØD Y ØC E F Type FF- FIXED LENGTH SHAFT Shaft FF – Fixed Length TYPE SizesU3440 - U3920 RA920 SIZES RA440 - CAT26 22.5° ØH Face Key FACE KEY 16 - HOLE 16 - HOLE Flange Yoke Integral Face Pad Hirth Radial Tooth Connection 16 Hole The torque ratings are based on material strength. When approaching these limits the capacity of the desired ange connection should be veried....

Torque Ratings Dimensional Data (inches and millimeters except where noted) Minimum Length L / Length Compensation S Torque Ratings Dimensional Data (inches and millimeters except where noted) Minimum Length L / Length Compensation S

Design Variations and Custom Applications C B Roll Removal Support Mechanism A B Hydraulic Removal Adaptor A E A C B B CAT25 D Vertical Edger Design A. Locking Pin Arrangement B. Long Travel Shaft With Bearing Support A. Detent Assembly B. Replaceable Pilot Bearing C. Angle Limiters D. Replaceable Wear Keys E. Hardened, Chamfered End Plate Specialty Shafts Tosionally Dampened Driveshafts Renold offers torsionally dampened driveshafts designed to reduce the torsional stress between the drive source and the driven unit. Through use of a torsionally dampened driveshaft resonant frequencies are...