SECONDARY DRIVE COUPLING FOR USE WITH A SHAFT

摘要

A secondary drive coupling may comprise at least one coupling member having a first mating portion and a second mating portion. The first mating portion is configured to engage a first section of a shaft on one side of a region of weakness of the shaft, whereas the second mating portion is configured to engage a second section of the shaft on an axially opposite side of the region of weakness. Both the first mating portion and the second mating portion are each configured to prevent rotation of the at least one coupling member about the shaft. In another embodiment, the at least one coupling member comprises a first coupling member comprising the first mating portion and a first contact surface and a separate, second coupling member comprising a second mating portion and a second contact surface that is configured to engage the first contact surface.

主权项

1. A secondary drive coupling for use with a shaft having a region of weakness and first and second sections on axially opposite sides of the region of weakness, the secondary drive coupling comprising:
at least one coupling member having a first mating portion and a second mating portion, the first mating portion configured to engage the first section of the rotating shaft and the second mating portion configured to engage the second section of the rotating shaft, wherein the first mating portion and the second mating portion are each configured to prevent rotation of the at least one coupling member about the shaft.