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D/W R188-2Z/Deep groove ball bearing/

Product model D/W R188-2Z
d 6.35 mm
D 12.7 mm
B 4.762 mm
Limiting speed 53000 r/min
Reference speed 110000r/min r/min
d2 7.4mm
D2 11.6mm
Chamfer Dimension(r1,2) 0.15mm
Shaft shoulder diameter(da)min 7.2mm
Shaft shoulder diameter(da)max 7.3mm
Diameter of bearing seat shoulder(Da) 11.7mm
Chamfer radius of shaft or bearing seat(ra) 0.15mm
Fatigue load limit 0.01kN
Minimum load factor(kr) 0.02
Calculation coefficient(f0) 7
Mass bearing 0.0021kg