Coupling Specs: universal_joint
Mechanical shaft coupling specifications for rotating equipment design. Covers 9 coupling types (jaw/spider, gear, disc/diaphragm, grid, Oldham, bellows, fluid, universal joint, rigid flange) in small/medium/large/extra-large size classes. Includes bore range, maximum torque, maximum speed, angular/parallel/axial misalignment limits, torsional stiffness, damping capability, service temperature range, maintenance requirements, typical applications, advantages, and limitations. Data from Rexnord Falk, Lovejoy/Timken, Thomas, Voith, Spicer/Dana catalogs and Shigley's handbook.
| coupling type | size class | advantages | bore range max in (in) | bore range min in (in) | damping capability | limitations | maintenance required | max angular misalignment deg (deg) | max axial misalignment in (in) | max parallel misalignment in (in) | max speed rpm (RPM) | max torque ft lb (ft-lb) | service temp max F (degF) | service temp min F (degF) | torsional stiffness ft lb per rad (ft-lb/rad) | typical applications |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| universal_joint | large | Very high torque; handles large offset; proven in extreme service | 6 | 1.5 | none | Velocity fluctuation at angle; high mass; bearing maintenance required | no | 30 | 0.15 | 0.075 | 3,000 | 8,000 | 250 | -40 | 20,000 | Rolling mill drives, ship propulsion, heavy machinery, press drives |
| universal_joint | medium | Handles large angular misalignment; high torque for size | 2.5 | 0.75 | none | Cyclic velocity variation limits to low-angle or double-cardan arrangements | no | 30 | 0.1 | 0.05 | 5,000 | 500 | 250 | -40 | 3,500 | Driveshafts, agricultural equipment, industrial presses, conveyors |
| universal_joint | small | Large angular misalignment capability; compact; widely available | 1 | 0.125 | none | Velocity fluctuation at high angles; requires two joints for constant velocity | no | 30 | 0.05 | 0.05 | 10,000 | 60 | 250 | -40 | 600 | Automotive steering, light industrial, small angle drives, instrument shafts |
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