FRB 4/120 NSK - Locating Ring for Bearings

Axial bearing locating ring for industrial housings

Stable positioning of the bearing in the locating position

Main description

The FRB 4/120 NSK locating ring is a precision axial positioning component designed to secure a bearing in the locating position within a bearing housing when the housing seat width does not match the bearing width. This solution is widely used in industrial applications where accurate axial location and long-term operational stability of the bearing assembly are required.

Locating rings are essential when a ball bearing or other rolling bearing must be axially fixed in the housing to prevent unwanted axial movement during operation. The FRB locating ring compensates for dimensional differences between the bearing and the housing, ensuring correct alignment and controlled load transfer within the bearing unit.

In standard industrial practice, two locating rings are typically used per housing, with one ring installed on each side of the bearing. This arrangement provides balanced axial support and maximizes operational reliability. If only one locating ring is required due to design constraints, it should be installed on the same side as the lock nut to ensure proper axial restraint.

The FRB 4/120 locating ring offers precise dimensional accuracy, contributing directly to high durability, reduced vibration, and extended service life of the bearing system. Proper axial positioning minimizes the risk of bearing misalignment and uneven load distribution, which are common causes of premature bearing failure.

This locating ring is commonly used in gearboxes, drive systems, industrial machinery, and shaft assemblies where stable axial bearing positioning inside the housing is critical. It is a proven B2B solution for machine builders and maintenance teams seeking reliability and repeatable assembly results.

FAQ - Frequently Asked Questions

What is the purpose of the FRB 4/120 locating ring?
It secures the bearing axially in the housing when the bearing width and housing seat width differ.

How many locating rings are normally used per housing?
Typically two, one on each side of the bearing.

When is only one locating ring used?
If required by the design, it should be installed on the same side as the lock nut.

Can the FRB locating ring be used with different bearing types?
Yes, it can be used with ball bearings and other rolling bearings.

Where are FRB locating rings commonly applied?
In industrial bearing housings, gearboxes, drive systems, and machinery assemblies.