Gear Hob Cutter Sharpening - CBN Wheel
► Application: High - Speed Steel HSS Hobs
► Used Green silicon carbide grinding wheel dress

CBN grinding wheel are CBN (Cubic Boron Nitride) grinding wheels are specially used for gear hob cutter grinding. CBN (Cubic Boron Nitride) due to its hardness, thermal resistance which is higher than diamond's, allowing work at 1,900°C (3,500°F), and the good chemical resistance of CBN to ferrous alloys. The roughness and sharpness is the most important for the CBN wheels.

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Shape |
D (mm) |
W (mm) |
H (mm) |
X (mm) |
T (mm) |
V° |
| 4BT9 |
100 |
10 |
20 |
1 |
10 |
5 |
150 |
10 |
50.8 |
3 |
10 |
8 |
|
| 4V4 |
100 |
6 |
20 |
1 |
10 |
10 |
Other size can be customized according to customers' requirement. | ||||||
The case of Metal bond CBN wheel for sharpening hob cutter

| Application | Hob Sharpening |
| Wheel sizes | 14EE1 - CBN grinding wheel-D150xT10 B30 C125 R0.09 |
| Machine | SEIWA |
| Coolant | Neat Oil |
| Wheel speed | 1000 1500rpm |
| Feed speed | 400mm/min |
| Work-piece | HSS HOB |
| Material | DM05 |
| Hardness | 68HRC |
| Depth of pass | 0,5mm |
| Roughness achieved | 0,1 µm Ra |
| Cycle time | 15 minutes |
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