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Couplings - Ruland
Paradrive™ Oldham Couplings
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Oldham couplings are three piece couplings comprised of two hubs and a
center member. The center disk, which is available in a choice of acetal
for high torsional stiffness or nylon for vibration and shock
absorption, is the torque transmitting element. Torque transmission is
accomplished by mating slots in the center disk, located on opposite
sides of the disk and oriented 90 degrees apart, with the drive tenons
on the hubs. The slots of the disk fit on the tenons of the hub with a
slight press fit. This press fit allows the coupling (with an acetal
disk) to operate with zero backlash. The coupling can act as a
mechanical fuse to protect equipment.
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