SKF QJ 228 N2MA four point contact bearing with CN axial clearance, 345 kN dynamic load, 475 kN static load, 140 mm bore, bearing steel, locating slot outer ring, machined metal cage, 35 degree contact angle for precise, durable operation
UPC:
✔️ 1 bearing, CN clearance, machined metal cage
The QJ 228 N2MA is a precision four-point contact bearing built for high load capacity and rigid shaft support in industrial machinery. It features CN axial clearance, a machined metal cage, and a two-piece inner ring with a one-piece outer ring for stable, compact mounting. Typically used in conveyors, gearboxes, and automation equipment where accurate alignment matters.
✅ Axial internal clearance: CN
✅ Basic dynamic load rating: 345 kN
✅ Basic static load rating: 475 kN
✅ Bore diameter: 140 mm (5.51 in)
✅ Outer ring locating feature: Locating slot
✅ Width: 42 mm (1.65 in)
✅ O.D.: 9 5/6 in (249.8 mm)
✅ Cage: machined metal
✅ Ring type: two-piece inner ring, one-piece outer ring
✅ Pack dimensions: 265 x 260 x 53 mm (10.43 x 10.24 x 2.09 in)
| Dimension | Value |
|---|---|
| Bore diameter | 140 mm (5.51 in) |
| Outer diameter | 249.8 mm (9.83 in) |
| Width | 42 mm (1.65 in) |
| Pack size (L×W×H) | 260 × 53 × 265 mm (10.24 × 2.09 × 10.43 in) |
💡 What is CN clearance pillow block bearing used for in rotary equipment?
It's handy for shaft alignment and load support in a variety of machines where reliable, predictable motion matters.
- shaft alignment and load support in conveyors and gearboxes
- reduces shaft misalignment and vibration in rotating equipment
- easy retrofit with standard housings in automation lines