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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

Ball Material

N/A Steel

Limiting Speed - Oil

N/A 6600 RPM

Limiting Speed - Grease

N/A 5300 RPM

Configuration

N/A Two

Static Load Rating

N/A 57500 lbf255000 N255.00 kN

Dynamic Load Rating

N/A 18400 lbf82000 N82.00 kN

Enclosure

N/A Open

Operating Temperature Range

N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Duplex Angular Contact Ball Bearings for Axial Loads - HTA Type - Dimensions

d

N/A 6.2992 in160.000 mm

D

N/A 8.6614 in220.000 mm

B

N/A 1.0630 in27.000 mm

2B

N/A 2.1260 in54.000 mm

d1

N/A 7.2087 in183.100 mm

D2

N/A 8.0000 in203.200 mm

r

N/A 0.0787 in2.000 mm

r1

N/A 0.0394 in1.000 mm

Contact Angle

N/A 30 º

2a

N/A 5.3976 in137.100 mm

da min

N/A 6.8504 in174.000 mm

Db max

N/A 8.3661 in212.500 mm

ras max

N/A 0.0787 in2.000 mm

r1as max

N/A 0.0394 in1.000 mm