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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 24400 RPM

Limiting Speed - Grease

N/A 12300 RPM

Configuration

N/A One

Factor

N/A 9.5

Static Load Rating

N/A 5900 lbf26200 N26.20 kN

Dynamic Load Rating

N/A 9100 lbf40500 N40.50 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 2.1654 in55.000 mm

D

N/A 3.9370 in100.000 mm

B

N/A 0.8268 in21.000 mm

d1

N/A 2.7165 in69.000 mm

d2

N/A 2.4724 in62.800 mm

D1

N/A 3.4016 in86.400 mm

r

N/A 0.0591 in1.500 mm

r1

N/A 0.0394 in1.000 mm

Contact Angle

N/A 15 º

a

N/A 0.8268 in21.000 mm

da min

N/A 2.5000 in63.500 mm

db min

N/A 2.3819 in60.500 mm

Da max

N/A 3.6024 in91.500 mm

ras max

N/A 0.0591 in1.500 mm

r1as max

N/A 0.0394 in1.000 mm

Double Row Width

N/A 1.6535 in42.000 mm

Triple Row Width

N/A 2.4803 in63.000 mm

Quadruple Row Width

N/A 3.3071 in84.000 mm