QJ228 Bearing
Four-point contact ball bearing
- Bore d140 mm
- Outer dia. D250 mm
- Width B42 mm
- Weight≈ 8.9 kg
High axial loads in both directions: compressors, gearboxes and pump shafts.
Technical data
| Bearing designation | QJ228 |
|---|---|
| Type | Four-point contact ball bearing |
| Bore d | 140 mm |
| Outer dia. D | 250 mm |
| Width B | 42 mm |
| Weight | ≈ 8.9 kg |
Designation meaning and notes
- Four-point contact; split inner ring.
Dimensions are standard catalogue values; the weight is an approximate calculation. Please confirm before ordering.
Common suffixes for QJ228
| QJ228 MA | Machined brass cage, outer ring guided |
|---|
Click a designation to open it in the bearing finder. Suffix usage can differ slightly between brands.
Matching seal (radial shaft seal)
140 × 250 × 15 mm
Seal weight: ≈ 0.54 kg
Other common widths: 140 × 250 × 12 mm, 140 × 250 × 20 mm
The seal's inner diameter matches the shaft (140 mm) and its outer diameter matches the housing bore (250 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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