Internal or Bore Grinding wheels are used for grinding inner diameter of bearing, gears & automobile components to an accurate size & desired finish. CUMI's versatile range of bore grinding wheels are used for grinding a variety of components that require size generation, fine surface finish and fast stock removal. We also offer value added services like sulphur treatment for lubrication & Cooler cutting action.
| Abrasive Used | CUMI Code | Grit | Diameter ( mm ) | Diameter ( Inch ) | Thickness ( mm ) | Thickness ( Inch ) | Hardness | Structure | Speed ( mps ) |
|---|---|---|---|---|---|---|---|---|---|
| Micro Crystalline Grain | CN | 60 - 120 | 60 - 120 | 3/8 - 5 | 5 - 75 | 1/5 - 3 | I - M | 6 - 8 | 33, 50 & 63 |
| Pink Aluminium Oxide | RA | 7 | |||||||
| Sharp Aluminium Oxide | 55A | 7 | |||||||
| Semi Friable Aluminium Oxide | SA | 5 - 8 |
| Material | Hardness | Bearing I.D (mm) | Speed | Best | Better | Good |
|---|---|---|---|---|---|---|
| Taper Roller Bearing (TRB) | 55 - 60 HRc | <= 70 | upto 45 | 3CN80 J6 VC500 | 55A80 J7 VC500 | SA60 J7 V144 |
| 63 | 3CN80 J6 VC500 | 55A80 J7 VC500 | RA60 J7 VF8 | |||
| > 70 | upto 45 | 3CN80 J6 VC500 | 55A80 J7 VC500 | SA80 J7 V144 | ||
| 63 | 3CN80 J6 VC500 | 55A80 J7 VC500 | RA80 J7 VF8 |
CUMI Bonded Abrasives Catalogue
