Item # BNT903DTUP, Double Angular Contact Ball Bearing for Motors and Lathes - Tandem Arrangement On NTN Bearing Corp. of America

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	Item # BNT903DTUP, Double Angular Contact Ball Bearing for Motors and Lathes - Tandem Arrangement

Double Angular Contact Ball Bearing for Motors and Lathes

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Double Angular Contact Ball Bearing for Motors and Lathes - Tandem Arrangement - Dimensions

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Unit of Measure: Imperial Metric Both

Order Now · Technical Specifications · Dimensional Specifications

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Ordering Options		Find a Distributor Contact NTN Customer Support Specialist Order through NTN DOL (Authorized Distributors Only)

Technical Specifications

Type		Main Spindle Bearing

Bore Type		Round

Material		High Carbon Chrome Steel

Cage Type		Machined

Cage Material		Phenolic Resin

Ball Material		Steel

Limiting Speed - Oil		38000 RPM

Limiting Speed - Grease		29000 RPM

Seal Type		None

Seal Material		None

Precision		Special Precision

Configuration		Two

Factor		0.0

Static Load Rating		875 lbf 3900 N 3.90 kN

Dynamic Load Rating		1420 lbf 6300 N 6.30 kN

Enclosure		Open

Weight		0.780 lb 0.354 kg

Operating Temperature Range		-40 to 250 ºF -40 to 120 ºC

Dimensional Specifications

		Double Angular Contact Ball Bearing for Motors and Lathes - Tandem Arrangement - Dimensions larger image

d		0.6693 in 17.000 mm

D		1.1811 in 30.000 mm

B		0.2756 in 7.000 mm

2B		0.5512 in 14.000 mm

d1		0.8268 in 21.000 mm

d2		0.7638 in 19.400 mm

D1		1.0236 in 26.000 mm

r		0.0118 in 0.300 mm

r1		0.0059 in 0.150 mm

Contact Angle		15 º

da min		0.7559 in 19.200 mm

db min		0.7165 in 18.200 mm

Da max		1.1024 in 28.000 mm

ras max		0.0118 in 0.300 mm

r1as max		0.0059 in 0.150 mm

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Item # BNT903DTUP, Double Angular Contact Ball Bearing for Motors and Lathes - Tandem Arrangement

Ordering Options

Type

Bore Type

Material

Cage Type

Cage Material

Ball Material

Limiting Speed - Oil

Limiting Speed - Grease

Seal Type

Seal Material

Precision

Configuration

Factor

Static Load Rating

Dynamic Load Rating

Enclosure

Weight

Operating Temperature Range

d

D

B

2B

d1

d2

D1

r

r1

Contact Angle

da min

db min

Da max

ras max

r1as max

2014-07-29 | PRESS RELEASE

2014-05-09 | PRESS RELEASE