INA RNA4912-XL bearings
Radial roller bearing RNA..-XL
- Measurement system
- Metric
- Bore diameter
- 68.000 mm
- Outside diameter
- 85.000 mm
- Width
- 25.000 mm
- Cr
- 68000 N
- C0r
- 108000 N
- Limiting speed
- 6700 r/min
- Net weight
- 0.272 kg
- Number of rows
- 1
- Sealing
- Without
- Cage
- Sheet steel
- Outer diameter type
- Cylindrical
- Bearing material
- Steel
- Rolling material
- Steel
- Tolerance class
- Normal (PN)
- Relubrication feature
- With
In stock
Technical specification for INA RNA4912-XL
| Part Number | RNA4912-XL | |
|---|---|---|
| Main Dimensions & Performance Data | ||
| FW | 68 mm | Under roller diameter |
| D | 85 mm | Outside diameter |
| C | 25 mm | Width |
| Cr | 68000 N | Basic dynamic load rating, radial |
| C0r | 108000 N | Basic static load rating, radial |
| Cur | 19100 N | Fatigue load limit, radial |
| nG | 6700 1/min | Limiting speed |
| nϑr | 3850 1/min | Reference speed |
| m | ≈ 0.272 kg | Weight |
| Dimensions | ||
| rmin | 1 mm | Minimum chamfer dimension |
INA RNA4912-XL, Radial roller bearing RNA..-XL, Main dimensions: 68 x 85 x 25mm.
INA RNA4912-XL bearings without inner ring have particularly compact radial dimensions. However, they require a shaft raceway that is hardened and ground.
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