Description
Dimensions
| Fw | 12 mm | Diameter under rollers |
|---|---|---|
| D | 18 mm | Outside diameter |
| C | 12 mm | Width |
| C1 | min. 9.3 mm | Depth of the drawn cup BK |
| r | min. 0.8 mm | Chamfer dimension drawn cup (outer ring) |
Calculation data
| Basic dynamic load rating | C | 6.27 kN |
|---|---|---|
| Basic static load rating | C0 | 7.35 kN |
| Fatigue load limit | Pu | 0.85 kN |
| Reference speed | 16 000 r/min | |
| Limiting speed | 18 000 r/min |
Associated products
| Inner ring IR series | IR 8x12x12.5 |
| Inner ring LR series | LR 8x12x12.5 |
| Radial shaft seal with a low cross-sectional height, single lip | G 12x18x3 |
| Radial shaft seal with a low cross-sectional height, double lip | SD 12x18x3 |
Tolerances and clearances
General bearing specifications
- Tolerances: table
Design considerations
- Shaft and housing tolerances: table
Drawn cup needle roller bearings are typically used in applications where the housing bore cannot be used as a raceway for a needle roller and cage assembly, but where a very compact and economical bearing arrangement is required. Owing to the large number of rollers, the bearings have a high load carrying capacity and stiffness. The closed end makes them suitable for bearing arrangements where they are situated at the end of a shaft.
- High radial load carrying capacity
- Accommodate small axial guidance forces
- High stiffness
- Very low cross-sectional height
