Vitrified bond CBN wheels are used for internal grinding of bearing inner and outer race.
Compared to general-purpose grinding wheels, the CBN Diamond wheel achieves higher machining precision and dramatically extends the interval between dressing.
CBN INTERNAL G/Wheel's Specs and Condition for Use
| Work Piece | Condition | Hardness | Spec |
| Inner Bearing | SUJ2 | HRC 60-62 | CBN 120 L 200 V |
| Inner Ring of Ball Bearing | 100Cr6(1.3505) | HRC 61-64 | CBN 140 L 200 V |
| Inner Ring of Bearing | 100Cr6 | HRC 62 | CBN 120 L 200 V |
