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W 639-2Z/Deep groove ball bearing/

Product model W 639-2Z
d 9 mm
D 30 mm
B 10 mm
Limiting speed 30000 r/min
Reference speed 60000r/min r/min
d2 15.3mm
D2 25.28mm
Chamfer Dimension(r1,2) 0.6mm
Shaft shoulder diameter(da)min 13mm
Shaft shoulder diameter(da)max 15.2mm
Diameter of bearing seat shoulder(Da) 26mm
Chamfer radius of shaft or bearing seat(ra) 0.6mm
Fatigue load limit 0.1kN
Minimum load factor(kr) 0.035
Calculation coefficient(f0) 12.9
Mass bearing 0.035kg