Ruland Manufacturing OD21/33-AT

Ruland Manufacturing

Coupling, Oldham Coupling Disc

OD21/33-AT 463445
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$10.92 + 4 Business Day Shipping $7.15


ItemMotion Control Coupling
StyleOldham Coupling Disc
Outside Dia. (In.)1.313
Outside Dia. (mm)33.30
Torque (In.-Lbs.)70.00
Torsional Stiffness (Deg./In.-Lbs.)0.009
Max. RPM4500
Max. Angular Misalignment0.5 Degrees
Max. Parallel Misalignment (In.)0.008
Max. Axial Misalignment (In.)+/-.006
Max. Temp. Range (F)150
Disc TypeAcetal
Weight 0.020000


Motion Control Coupling, Oldham Coupling Disc, Outside Dia 1.313 In, Outside Dia 33.30 mm, Torque Nominal 70 In-Lbs, Torsional Stiffness 0.009 Deg/In-Lbs, 4500 Max RPM, Max Temp 150 F, Acetal Material, Plain Finish, Acetal Disc

Oldham Couplings
  • Provide electrical isolation for encoders, tachometers, linear stages, stepper motors, and servomotors. Drive tenons mate to torque-transmitting disc. Like a mechanical fuse, coupling disengages when disc fails. Hubs are low-inertia black anodized aluminum. Select nylon discs for shock absorption; select acetal discs for high torsional rigidity and zero backlash.
  • Complete assembly requires 2 hubs and 1 disc of the same O.D. (sold separately) Max. rpm: 4500 Max. angular misalignment: 0.5

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