Bearing Designation
Bearing Designations is composed of a basic numbers and letters, denoting bearing specifications such as bearing type/material, boundary dimensions, running accuracy, and internal clearance. This Guide will help you identify bearing and help you pick the right bearing for you specific needs.
Bearing Designation Format Example:
The designations of our Bearings follow a system that may consist of a prefixes, numbers and/or suffixes, as shown below.
Prefixes are primarily used to identify components of a bearing or identify bearing variants.
Stainless Steel Bearing
Cage with roller
Removable Bearing ring
Ring with roller set
Stainless steal deep groove ball
Please note that these are some examples of common prefixes however they may vary as each bearing company uses their own prefixes.
The first number will relate to the bearing type. (6)001
Self-Aligning Ball Bearing
Barrel and Spherical Roller Bearing
Tapered Roller Bearing
Deep Groove Ball Bearing
Axial Deep Groove Ball Bearing
Deep Groove Ball Bearing (single Row)
Single Row Angular Contact Bearing
Axial Cylindrical Roller Bearing
The Second number then relates to the bearing series. 6(0)01
Very thin section
Extra light
Extra light thrust
Light
Medium
Heavy
The 3rd and 4th numbers of the bearing number bore size of the bearing. 60(01)
10mm
12mm
15mm
17mm
5 times that of the 3rd and 4th digit.
Suffixes identify variants or designs, which differ in some way from the original design or from the current basic design. The suffixes are divided into groups. When more than one special feature is to be identified.
Bearing with two metal shields.
Bearing with snap ring groove & snap ring
Bearing with one metal shield.
Bearing with one rubber seal.
Bearing with two rubber seals.
Bearing with two metal shields with snap ring groove & snap ring.
Bearing with two rubber seals with snap ring groove & snap ring.
Indicates that a bearing has a Radial internal clearance greater than normal (to allow for heat expansion).
Bearing Clearance – Bearing internal clearance is defined as the entire distance through which one bearing ring can be moved relative to the other in the radial direction (radial internal clearance).