Locking Assemblies and Taper Bushes

The taper lock and conical bushing both serve to secure a transmission element (pulley, pinion, coupling) onto a shaft, but they operate on different principles. The conical bushing fits into a hub that is already designed with a conical seat, is economical, and is very common on pulleys; it typically operates with a key. The taper lock secures by friction, without a key and without play, transmits high torques, and allows for angular positioning adjustment of the hub: it is preferable for reversing motion, shock loads, or when precision is required. You can find both families on shop.atti.it.

On shop.atti.it, ATTI offers over 600 items including friction locking assemblies in various series and shaft diameters, and taper bushes in the standard series from 1008 to 5050. The taper bushes are compatible with the pulleys and sprockets designed for bushings available in the catalog. Each locking assembly specifies the shaft and hub diameter, allowing you to choose the correct one.