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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 17200 RPM

Limiting Speed - Grease

N/A 8600 RPM

Configuration

N/A One

Factor

N/A 9.7

Static Load Rating

N/A 11400 lbf50500 N50.50 kN

Dynamic Load Rating

N/A 16000 lbf71000 N71.00 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 3.1496 in80.000 mm

D

N/A 5.5118 in140.000 mm

B

N/A 1.0236 in26.000 mm

d1

N/A 3.8622 in98.100 mm

d2

N/A 3.5591 in90.400 mm

D1

N/A 4.8031 in122.000 mm

r

N/A 0.0787 in2.000 mm

r1

N/A 0.0394 in1.000 mm

Contact Angle

N/A 15 º

a

N/A 1.0984 in27.900 mm

da min

N/A 3.5433 in90.000 mm

db min

N/A 3.3661 in85.500 mm

Da max

N/A 5.1181 in130.000 mm

ras max

N/A 0.0787 in2.000 mm

r1as max

N/A 0.0394 in1.000 mm

Double Row Width

N/A 2.0472 in52.000 mm

Triple Row Width

N/A 3.0709 in78.000 mm

Quadruple Row Width

N/A 4.0945 in104.000 mm