20318-MB
Barrel roller bearing
Barrel roller bearings 203, main dimensions to DIN 635-1
Replaces
20318MB
Description
Metric
Imperial
Main Dimensions & Performance Data
| d | 90 mm | Bore diameter |
| D | 190 mm | Outside diameter |
| B | 43 mm | Width |
| Cr | 300,000 N | Basic dynamic load rating, radial |
| C0r | 360,000 N | Basic static load rating, radial |
| Cur | 31,500 N | Fatigue load limit, radial |
| nG | 3,500 1/min | Limiting speed |
| ≈m | 6.12 kg | Weight |
Mounting dimensions
| da min | 104 mm | Minimum diameter shaft shoulder |
| Da max | 176 mm | Maximum diameter of housing shoulder |
| ra max | 2.5 mm | Maximum recess radius |
Dimensions
| rmin | 3 mm | Minimum chamfer dimension |
| D1 | 165.1 mm | Bore diameter outer ring |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 200 °C | Operating temperature max. |
Your current product variant
| Bore type | Z | Cylindrical |
| Cage | MB | Solid brass cage |
| Radial internal clearance | CN | Group N (CN) |
Characteristics
