6988 KOYO Single-row deep groove ball bearings
| Brand Name: | KOYO |
| Model Number: | 6988 |
| d: | 30 mm |
| D: | 55.000 mm |
| Bearing Width: | 13 mm |
| Contact Angle: | 15 º |
| do - Ball Diameter: | 7.143750 mm |
| C0 - Static Radial Rating: | 9167 N |
| Ce - Dynamic Radial Rating1: | 16800 N |
| Limiting Speed (Grease): | 30600 rpm |
Product Details
| d | 30 mm |
| D | 55.000 mm |
| Bearing Width | 13 mm |
| Contact Angle | 15 º |
| do - Ball Diameter | 7.143750 mm |
| C0 - Static Radial Rating | 9167 N |
| Ce - Dynamic Radial Rating1 | 16800 N |
| Limiting Speed (Grease) | 30600 rpm |
| Limiting Speed (Oil) | 61200 rpm |
| Ball Type | Ceramic |
| Cage Type | CR - Phenolic Outer Land Riding Cage |
| Bearing Weight | 0.113 Kg |
| Design Units | METRIC |
| Precision Class | ISO P4S (ABEC 7/9) |
| Full Timken Part Number | 2MMC9106WICRDUH |
| R - Inner Ring To Clear Radius2 | 1.0 mm |
| r - Outer Ring To Clear Radius3 | 1.0 mm |
| da - Inner Ring Backing Diameter | 35.900 mm |
| Da - Outer Ring Backing Diameter | 50.700 mm |