| 2MM |
15° Low Contact Angle, Super Precision ABEC-7 (ISO P4), |
| 3MM |
25° High Contact Angle Super Precision ABEC-7 (ISO P4), |
| 2MMV |
15° Low Contact Angle, High Grade (HG) Between ABEC-7 (ISO P4) And ABEC-9 (ISO P2), |
| 3MMV |
25° High Contact Angle, High Grade (HG) Between ABEC-7 (ISO P4) and ABEC-9 (ISO P2) |
| WI |
Low Shoulder On Outer Ring (Standard Cage!!! (Molded Reinforced Nylon Cage)) |
| CR |
Phenolic (Composition) Fafnir Standard |
| SUL |
Single Bearing, Universally Ground, Light Preload |
| FS637 |
An Example Of A Specification Number For Other Than Standard |
