7311 Bearing
Angular contact ball bearing
- Bore d55 mm
- Outer dia. D120 mm
- Width B29 mm
- Weight≈ 1.4 kg
Combined radial and axial loads: pumps, compressors and machine-tool spindles.
Technical data
| Bearing designation | 7311 |
|---|---|
| Type | Angular contact ball bearing |
| Bore d | 55 mm |
| Outer dia. D | 120 mm |
| Width B | 29 mm |
| Weight | ≈ 1.4 kg |
Dimensions are standard catalogue values; the weight is an approximate calculation. Please confirm before ordering.
Common suffixes for 7311
| 7311 B | 40° contact angle |
|---|---|
| 7311 BE | 40° contact angle, reinforced design |
| 7311 BECBM | 40° contact angle, brass cage, for paired mounting |
| 7311 BEP | 40° contact angle, polyamide cage |
| 7311 BECBP | 40° contact angle, polyamide cage, for paired mounting |
Click a designation to open it in the bearing finder. Suffix usage can differ slightly between brands.
Matching seal (radial shaft seal)
55 × 120 × 10 mm
Seal weight: ≈ 0.099 kg
Other common widths: 55 × 120 × 8 mm, 55 × 120 × 12 mm
The seal's inner diameter matches the shaft (55 mm) and its outer diameter matches the housing bore (120 mm); the width depends on the space in the housing. NBR (double lip, TC type) is recommended for general use and FKM (Viton) for high temperatures.
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