Chinese wholesale Bike Crank Bearings - QJ224 Four point Angular Contact Ball Bearing – CWL
Chinese wholesale Bike Crank Bearings - QJ224 Four point Angular Contact Ball Bearing – CWL Detail:
Dimensions and Tolerances
Four point contact ball bearings with normal tolerance in accordance to DIN 620-2 (Tolerances for roller bearings) and ISO 492 (Radial bearings – Dimensional and geometrical tolerances).
Standards
The general dimensions of four point contact ball bearings are standardised by DIN 628-4 (Rolling bearings – Angular contact radial ball bearings – Four point contact bearing) for type QJ and based on the standard of TGL2982 for type Q. Dimensions and tolerances of the holding grooves are standardised by ISO 20515 (Radial bearings – holding grooves).
QJ224 detail Specifications
Main Dimensions
Bore diameter (d):120mm
Bore diameter Tolerance:-0.015mm to 0
Outer diameter (D): 215mm
Outer diameter Tolerance:-0.02mm to 0
Width (B): 40mm
Width Tolerance:-0.05mm to 0
Chamfer Dimension( r) min.:2.1mm
ABUTMENT DIMENSIONS
Abutment diameter shaft(da) min. :132mm
Abutment diameter housing(Da) Max. :203mm
Fillet radius(ras) Max.:2mm
Load center(a):96.5mm
Fatigue load limit(Cu):17.7KN
Dynamic load ratings(Cr): 286KN
Static load ratings(Cor): 340KN
Product detail pictures:
Related Product Guide:
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