Bearing number	2221	2221	2221
Size (mm)	105x190x50(mm)	105x190x50(mm)	105x190x50(mm)
Brand	NACHI	AST	CX
Bore Diameter (mm)	105(mm)	105(mm)	105(mm)
Outer Diameter (mm)	190(mm)	190(mm)	190(mm)
Width (mm)	50(mm)	50(mm)	50(mm)
d	105 mm 4.1339 in		105 mm 4.1339 in
D	190 mm 7.4803 in		190 mm 7.4803 in
B	50 mm 1.9685 in		50 mm 1.9685 in
C	50 mm 1.9685 in		50 mm 1.9685 in
r1 min.	2.1 mm 0.0827 in
da min.	117 mm 4.6063 in
Da max.	178 mm 7.0079 in
ra max.	2 mm 0.0787 in
Weight	6.06 Kg		6,1 Kg
Basic dynamic load rating (C)	109 kN		108 kN
Basic static load rating (C0)	44,5 kN		45 kN
(Grease) Lubrication Speed	2900 r/min		3000 r/min
(Oil) Lubrication Speed	3500 r/min
Calculation factor (e)	0.28
Calculation factor (Y0)	2.4
Calculation factor (Y1)	2.3