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Unit of Measure

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Ordering Options

N/A Contact NTN Customer Relations

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 37500 RPM

Limiting Speed - Grease

N/A 18500 RPM

Configuration

N/A One

Factor

N/A 10.4

Static Load Rating

N/A 1640 lbf7300 N7.30 kN

Dynamic Load Rating

N/A 2410 lbf10700 N10.70 kN

Enclosure

N/A Open

Operating Temperature Range

N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Single Angular Contact Ball Bearings for Motors and Lathes - Dimensions

d

N/A 1.5748 in40.000 mm

D

N/A 2.4409 in62.000 mm

B

N/A 0.4724 in12.000 mm

d1

N/A 1.8504 in47.000 mm

d2

N/A 1.7480 in44.400 mm

D1

N/A 2.1654 in55.000 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 0.5079 in12.900 mm

da min

N/A 1.7520 in44.500 mm

db min

N/A 1.6732 in42.500 mm

Da max

N/A 2.2638 in57.500 mm

ras max

N/A 0.0236 in0.600 mm

r1as max

N/A 0.0118 in0.300 mm

Double Row Width

N/A 0.9449 in24.000 mm

Triple Row Width

N/A 1.4173 in36.000 mm

Quadruple Row Width

N/A 1.8898 in48.000 mm