Regal Rexnord
Bushings
Regal Rexnord industrial shaft bushings are precision - manufactured mechanical clamping devices that secure sheaves, sprockets, pulleys, and couplings to rotating shafts — providing the removable, zero - backlash shaft connection that enables convenient component installation, bore - size flexibility, and the elimination of the fretting, backlash, and stress - riser problems inherent in traditional key - and - setscrew mounting.Under the Browning, Rexnord, and Link - Belt brands, our bushing portfolio spans the industry - standard QD(Quick - Detachable) and Taper - Lock systems — split and solid tapered bushings that grip the shaft with high radial force when tightened — as well as keyless locking assemblies and shrink discs for applications where absolute zero - backlash and keyway - free shafts are required.Maintenance technicians, machine designers, and OEM purchasing managers specify Regal Rexnord bushings because of their dimensional interchangeability with all major brands, the installation / removal simplicity that reduces machine downtime during component changes, and the ability to change bore sizes by simply changing the bushing — eliminating the cost and lead time of special - bore components.
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QD & Taper - Lock Interchangeability
Dimensions conforming to the industry - standard QD and Taper - Lock geometries ensure drop -in interchangeability with existing sheaves, sprockets, and couplings from all major manufacturers.
Bore - Size Flexibility with One Component
A single sheave or sprocket accepts multiple bushing bores, allowing field bore changes and simplifying spare - parts inventory.
Installation / Removal with Standard Tools
QD and Taper - Lock bushings are installed and removed with a standard wrench — no heating, pressing, or special hydraulic equipment required — reducing machine downtime during component changes.
High - Torque Clamping Force
The tapered bushing design multiplies bolt - tightening force into high radial clamping pressure on the shaft, providing significantly more torque - transmission capacity than a key - and - setscrew connection of equivalent diameter.
Keyless Locking Assembly Options
For zero - backlash or reversing - drive applications, Tollok and Ringfeder locking assemblies provide a true interference - fit clamp without keyway stress concentrations.
Material & Finish Options for Application Environment
Carbon steel with black oxide or phosphate coating for general industrial use; stainless steel for washdown, food, and chemical environments; special coatings for offshore and marine installations.
Bushing vs.Keyed Shaft Connection: Reliability & Maintenance Advantages
Keyed connections, while ubiquitous, introduce stress concentrations(keyway notches) that reduce shaft fatigue strength and create the backlash that frets and wears over time.The QD and Taper - Lock bushing eliminates the keyway in the hub(the bushing itself carries the key - to - shaft connection), distributing the torque load around a full - circumference clamp.This design is inherently more resistant to the fretting and looseness that develop in keyed connections subjected to reversing or fluctuating loads.For maintenance, the ability to remove a bushing - mounted sheave or sprocket without prying or heating — simply by using the removal bolt threads integral to the bushing — dramatically reduces the time and potential for shaft or component damage during replacement.These reliability and maintainability advantages have made taper - bushing systems the standard for over a century of industrial power transmission.
Keyless Locking Assemblies(Shrink Discs) for Extreme Torque & Backlash - Free Drives
For applications where the transmitted torque approaches the yield limit of the shaft material and zero - backlash positioning is essential — servo - driven indexing tables, wind - turbine main - shaft connections, marine propeller - shaft couplings — Regal Rexnord Tollok and Ringfeder keyless locking assemblies provide the ultimate shaft - hub connection.These devices use a mechanically or hydraulically generated radial clamping force that can exceed the shaft material’s yield strength, creating a metal - to - metal friction joint that transmits torque across the full 360° of shaft circumference without concentrating stress.The result is a joint that transmits higher torque than any keyed connection of the same shaft diameter, with no backlash, no fretting, and a fatigue life limited only by the shaft itself.Our application engineers specify the correct locking assembly series and tightening torque for each application, ensuring that the joint meets the torque and bending - moment capacity required for reliable long - term operation.