Item # BNT201, Single Angular Contact Ball Bearings for Motors and Lathes On NTN Bearing Corp. of America

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Technical Specifications

Type	N/A Main Spindle Bearing
Bore Type	N/A Round
Material	N/A High Carbon Chrome Steel
Cage Type	N/A Machined
Cage Material	N/A Phenolic Resin
Ball Material	N/A Steel
Limiting Speed - Oil	N/A 97000 RPM
Limiting Speed - Grease	N/A 48400 RPM
Configuration	N/A One
Factor	N/A 8.5
Static Load Rating	N/A 515 lbf2280 N2.28 kN
Dynamic Load Rating	N/A 1210 lbf5400 N5.40 kN
Enclosure	N/A Open
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Open Image Single Angular Contact Ball Bearings for Motors and Lathes - Dimensions
d	N/A 0.4724 in12.000 mm
D	N/A 1.2598 in32.000 mm
B	N/A 0.3937 in10.000 mm
d1	N/A 0.7244 in18.400 mm
d2	N/A 0.6496 in16.500 mm
D1	N/A 1.0236 in26.000 mm
r	N/A 0.0236 in0.600 mm
r1	N/A 0.0118 in0.300 mm
Contact Angle	N/A 15 º
a	N/A 0.3150 in8.000 mm
da min	N/A 0.6496 in16.500 mm
db min	N/A 0.5709 in14.500 mm
Da max	N/A 1.0827 in27.500 mm
ras max	N/A 0.0236 in0.600 mm
r1as max	N/A 0.0118 in0.300 mm
Double Row Width	N/A 0.7874 in20.000 mm
Triple Row Width	N/A 1.1811 in30.000 mm
Quadruple Row Width	N/A 1.5748 in40.000 mm