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
| 1 |
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 |
|
| 2 |
Bearing Size |
| 6002 |
Designation of dimension series and bore diameter |
|
| 3 |
Series/Shields |
| X |
Extra-wide bearing |
| Z |
Shield on one side |
| 2Z |
Shields on both sides (for matched pairs, shields are on outside faces) |
|
| 4 |
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 |
|
| 5 |
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 |
|
| 6 |
Internal Clearance |
| C2 |
Radial clearance smaller than standard2 |
| - |
Standard clearance2 |
| C3 |
Radial clearance greater than standard2 |
| C4 |
Radial clearance greater than C32 |
|
| 7 |
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 |
|
| 8 |
Bearing Sets |
| DF |
Face-to-Face arrangement |
| DB |
Back-to-Back arrangement |
| DT |
Tandem arrangement |
|
| 9 |
Heat Treatment |
| S1 |
Operating temperature up to 200° C1 |
| S2 |
Operating temperature up to 250° C1 |
| S3 |
Operating temperature up to 300° C1 |
|
| 10 |
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