SKF W 638/4-2Z Deep Groove Ball Bearing

Details

Technical specification

DIMENSIONS

d		4 mm
D		9 mm
B		4 mm
d1		? 5.2 mm
D2		? 8.1 mm
r1,2		min. 0.1 mm

ABUTMENT DIMENSIONS

da		min. 4.8 mm
da		max. 5.1 mm
Da		max. 8.2 mm
ra		max. 0.1 mm

CALCULATION DATA

Basic dynamic load rating	C	0.364 kN
Basic static load rating	C0	0.114 kN
Fatigue load limit	Pu	0.005 kN
Reference speed		140000 r/min
Limiting speed		70000 r/min
Calculation factor	kr	0.02
Calculation factor	f0	6.5

MASS

Mass bearing		0.000925 kg