Vitrified bond CBN wheels are used for internal grinding of steering pump stator and cam ring.
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 |
| Steering Pump Wheel | S 6-5-2(DMo5) | HRC 62-64 | CBN 120 L 200 V |
| Steering Pump Stator | CAST ALLOY | HRC 45-50 | CBN 140 L 200 V |
| Steering Cam Ring | PM Alloy Steel | HRC 58 | CBN 100 L 200 V |
