Selection Guide

Deep Groove Radial Ball Bearings

GMN radial deep groove radial ball bearings are available in a wide range of executions. For technical reasons, not every basic type can be supplied with every special feature, e.g. combining TB- cage with shields is not possible for most basic types.

Hence there is no online selection available. Below we have listed our designation system and a listing of our basic types. For support or bearing selection please contact our application engineers.

Download Radial Bearing Selection Guide

HY
1

6002
2

X
3

J
4

P4
5

C2
6

R
7

DF
8

S1
9

GLY32
10

Material

-	Bearings made of bearing steel have no prefix
M	Bearings made of high temperature steel¹
N	Bearings made of high nitrogen steel¹
HY	Balls made of Silicon Nitride, rings made of bearing steel

Bearing Size

6002	Designation of dimension series and bore diameter

Series/Shields

X	Extra-wide bearing
Z	Shield on one side
2Z	Shields on both sides (for matched pairs, shields are on outside faces)

Cage

J	Steel ribbon cage, ball guided
T9H	Crown cage of fiberglass reinforced polyamide, ball guided
TBH	Crown cage of laminated phenolic resin, inner land guided
TA	Solid cage of laminated phenolic resin, outer land guided
TB	Solid cage of laminated phenolic resin, inner land guided
MA	Solid cage of brass, outer land guided

Precision

P4	European tolerance class, similar to ABEC 7²
P2	European tolerance class, similar to ABEC 9²
A7	ABEC 7 per ABMA standards, similar to P4²
A9	ABEC 9 per ABMA standards, similar to P2²
HG	GMN high precision according to GMN specification, higher than P4, but lower than UP²
UP	GMN ultra precision according to GMN specification, higher than HG, but lower than P2²

Internal Clearance

C2	Radial clearance smaller than standard²
-	Standard clearance²
C3	Radial clearance greater than standard²
C4	Radial clearance greater than C3²

High Point Marking

R	High point mark for radial runout for both inner and outer rings
R¹	Similar to R, but only for inner ring
R²	Similar to R, but only for outer ring

Bearing Sets

DF	Face-to-Face arrangement
DB	Back-to-Back arrangement
DT	Tandem arrangement

Heat Treatment

S1	Operating temperature up to 200° C¹
S2	Operating temperature up to 250° C¹
S3	Operating temperature up to 300° C¹

Lubrication

-	No lubrication
GLY32	Lubrication identifier, ex. Asonic GLY 32

1. Available on request
2. Exact specifications can be found in the GMN Ball Bearing Catalog