Description
Dimensions
| Fw | 125 mm | Diameter under rollers |
|---|---|---|
| D | 150 mm | Outside diameter |
| C | 40 mm | Width |
| r1,2 | min. 1.1 mm | Chamfer dimension outer ring |
Abutment dimensions
| Da | max. 143.5 mm | Diameter of housing abutment |
|---|---|---|
| ra | max. 1 mm | Fillet radius |
Calculation data
| NR performance class | NR Explorer | |
| Basic dynamic load rating | C | 150 kN |
| Basic static load rating | C0 | 300 kN |
| Fatigue load limit | Pu | 35.5 kN |
| Reference speed | 3 200 r/min | |
| Limiting speed | 3 600 r/min |
Associated seals
| 125x150x12 HMS5 RG | Radial shaft seal |
Tolerances and clearances
General bearing specifications
- Tolerances: Normal, P6, P5, ISO - F6 (Fw)
- Radial internal clearance: table
Design considerations
- Housing tolerances: table
- Shaft tolerances: Operating clearance
Single row needle roller bearings without an inner ring consist of an outer ring with a needle roller and cage assembly. They are an excellent choice for compact bearing arrangements in applications where hardened and ground raceways can be provided on the shaft. The outer ring includes two integral flanges to guide the bearing axially and an annular groove with one or more lubrication holes to facilitate relubrication.
- High radial load carrying capacity
- High stiffness
- Low cross-sectional height
- Accommodate axial displacement in both directions
