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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 61900 RPM

Limiting Speed - Grease

N/A 30900 RPM

Configuration

N/A One

Factor

N/A 8.8

Static Load Rating

N/A 1200 lbf5350 N5.35 kN

Dynamic Load Rating

N/A 2520 lbf11200 N11.20 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 0.7874 in20.000 mm

D

N/A 1.8504 in47.000 mm

B

N/A 0.5512 in14.000 mm

d1

N/A 1.1575 in29.400 mm

d2

N/A 1.0315 in26.200 mm

D1

N/A 1.5512 in39.400 mm

r

N/A 0.0394 in1.000 mm

r1

N/A 0.0236 in0.600 mm

Contact Angle

N/A 15 º

a

N/A 0.4606 in11.500 mm

da min

N/A 1.0039 in25.500 mm

db min

N/A 0.9646 in24.500 mm

Da max

N/A 1.6339 in41.500 mm

ras max

N/A 0.0394 in1.000 mm

r1as max

N/A 0.0236 in0.600 mm

Double Row Width

N/A 1.1024 in28.000 mm

Triple Row Width

N/A 1.6535 in42.000 mm

Quadruple Row Width

N/A 2.2047 in56.000 mm