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size
d 8mm
D 22mm
B 7mm
d1≈12.15mm
D2≈19.2mm
Size shoulder size
damin.10mm
Damax.20mm
ramax.0.3mm
data calculation
Basic dynamic load ratingC 3.45kN
Basic rated static loadC0 1.37kN
Fatigue load limitPu 0.057kN
Reference speed  75000r/min
Maximum speed  48000r/min
coefficientkr 0.025 
coefficientf0 12 
weight
Bearing weight  0.011kg
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