Angular contact ball bearings 7221DT
Bearing number : 7221DT
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
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Featured with single row design, Nachi Bearings are used for smooth movement of motors, conveyor belt, rolling mill, forklift and tractors. These are also used in high frequency centrifuges. Produced from stainless steel, these bearings can withstand heavy load and these generate minimal noise during their rotation. These have 30 degree contact ...
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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