Vitrified CBN Wheels for Hardened Steel
- Long life on production grinding of hardened steel
- CBN abrasive — not diamond, not for carbide or glass
- 1A1 for OD and cylindrical; 6A2 for faces
- Made to your diameter, grit, and concentration
Product Information
What we grind
Vitrified wheels grind hardened steel on production machines — crankshafts, camshafts, bearing rings, gears, and similar wet OD or face work. The bond is porous and dressable, so a CBN grinding wheel holds form through a shift instead of loading like resin.
| Workpiece | Common operations |
|---|---|
| Crankshafts and camshafts | OD, pin, lobe |
| Bearing rings and rollers | OD, ID, race, face |
| Gears and shafts | OD, face, form |
| CV joints and similar auto parts | OD and track |
| Hardened dies in production volume | Face and OD |
Typical machines: Studer, Junker, Landis, Toyoda, and equivalent CNC cylindrical or production grinders. Coolant is normal.
OD or face
Cylindrical grinding and face grinding use different wheels.
OD and cylindrical
Start with 1A1. A vitrified CBN wheel on the periphery takes the OD of a shaft, ring, or pin. Send diameter, hole, and width. We match the wheel to the spindle and dresser.
Faces
6A2 when the machine takes a cup on the face of a ring, gear, or plate.
Shapes
| Shape | Drawing | Role on hardened steel |
|---|---|---|
| 1A1 |  |
Peripheral OD and cylindrical grinding of hardened steel |
| 6A2 |  |
Cup grinding on faces of rings, gears, and plates |
Also available: 3A1. Send the current wheel stamp — we match it.
Send a mark such as 1A1-400-20-127 CBN 126 plus steel grade and wet/dry. We match diameter, thickness, hole, grit, and concentration.
When vitrified CBN is the wrong wheel
- Natural diamond bruting and polish → vitrified diamond for natural diamond
- Carbide / PCD production with in-cycle dressing → vitrified diamond
- Carbide end mills, drills, inserts (regrind / finish) → resin diamond
- One-off mold punch or cavity → resin CBN, mold and die
- Glass, quartz, stone, silicon wafers → metal bond
- Thin cut-off or a short-run form → electroplated or metal 1A1R
