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QJ 228 N2MA

Additional Details

Four-point contact bearings can withstand high axial loads in both directions and small radial loads. They can operate at very high speeds and are more suitable than deep groove ball bearings for axial load support. The outer ring, consisting of balls and cage, can be mounted separately from the two inner rings.

QJ 228 N2MA

Four-point contact ball bearing

Technical Specifications

Series description Four-point contact ball bearing
ID d (mm) 140
OD D (mm) 250
Width B/T/H (mm) 42
Dim. B
Bore รูตรง (Cylindrical bore)
Sealing เปิด (ไม่มีซีล/ฝาปิด)
Cage รังทองเหลือง machined, inner-ring guided
Clearance ปกติ
Special features
SKF Explorer★ Explorer
C dynamic (kN) 345
C0 static (kN) 475
Pu fatigue (kN) 14.3
Ref. speed (r/min)
Limiting speed (r/min) 4300
Mass (kg) 9.85