| 摘要 |
A small, strong swivel coupling includes a spindle connectable to a pulling device, the spindle having a reduced diameter, axially extending central core which is threaded to receive a thrust nut and a lock nut. At the other end of the coupling, an end cap is connected to an axially extending sleeve which has an inwardly protruding flange. The flange and thrust nut form oppositely facing surfaces which are separated from each other by a low-friction washer preferably made of polytetrafluoroethylene. The coupling can withstand large axial forces and still rotate to relieve torques which might damage a cable being pulled.
|
