Angular contact ball bearings 7221DB
Bearing number : 7221DB
Size (mm) : 105x190x36
Brand : NACHI
Bore Diameter (mm) : 105
Outer Diameter (mm) : 190
Width (mm) : 36
Bearing dimensions and specification in NACHI catalogue:
d - 105 mm
D - 190 mm
B - 36 mm
C - 36 mm
Angle (α) - 30 °
a - 24.6 mm
r min. - 2.1 mm
r1 min. - 1.1 mm
2B - 72 mm
da min. - 112 mm
Da max. - 183 mm
ra max. - 1 mm
Weight - 3.93 Kg
Basic dynamic load rating (C) - 254 kN
Basic static load rating (C0) - 283 kN
(Grease) Lubrication Speed - 2400 r/min
(Oil) Lubrication Speed - 3200 r/min
The installation unit must be issued by the provincial quality and technical supervision department. NACHI 7221BDT Special equipment installation (maintenance) safety approval certificate 2 outer ring outer ring raceway bearing ring on the inner surface. If the fit clearance exceeds the specified usage limit, the critical frequency is changed.
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