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SKF W 638/3 R-2Z Deep Groove Ball Bearings

BRAND : SKF

Technical specification

Details

Technical specification

DIMENSIONS

d
3 mm
D
7 mm
B
3 mm
d2
? 3.85 mm
D2
? 6.35 mm
D3
8.1 mm
C
0.8 mm
r1,2
min. 0.1 mm

ABUTMENT DIMENSIONS

da
min. 3.7 mm
da
max. 3.8 mm
ra
max. 0.1 mm

CALCULATION DATA

Basic dynamic load ratingC
0.178 kN
Basic static load ratingC0
0.057 kN
Fatigue load limitPu
0.002 kN
Reference speed
160000 r/min
Limiting speed
80000 r/min
Calculation factorkr
0.02
Calculation factorf0
7.1

MASS

Mass bearing
0.00051 kg