Item # BNT008DB/GNP2, Double Angular Contact Ball Bearing for Motors and Lathes - Back-to-Back Arrangement On NTN Bearing Corp. of America

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	Item # BNT008DB/GNP2, Double Angular Contact Ball Bearing for Motors and Lathes - Back-to-Back Arrangement

Double Angular Contact Ball Bearing for Motors and Lathes

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Double Angular Contact Ball Bearing for Motors and Lathes - Back-to-Back 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		18000 RPM

Limiting Speed - Grease		14000 RPM

Seal Type		None

Seal Material		None

Precision		ISO Class 2

Configuration		Two

Preload		Normal

Static Load Rating		4680 lbf 20800 N 20.80 kN

Dynamic Load Rating		5740 lbf 25500 N 25.50 kN

Enclosure		Open

Weight of Single Row Bearing		0.408 lb 0.185 kg

Weight		0.816 lb 0.370 kg

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

Dimensional Specifications

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

d		1.5748 in 40.000 mm

D		2.6772 in 68.000 mm

B		0.5906 in 15.000 mm

2B		1.1811 in 30.000 mm

d1		1.9213 in 48.800 mm

d2		1.7992 in 45.700 mm

D1		2.3386 in 59.400 mm

r		0.0394 in 1.000 mm

r1		0.0236 in 0.600 mm

Contact Angle		15 º

da min		1.7913 in 45.500 mm

Da max		2.4606 in 62.500 mm

ras max		0.0394 in 1.000 mm

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Item # BNT008DB/GNP2, Double Angular Contact Ball Bearing for Motors and Lathes - Back-to-Back 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

Preload

Static Load Rating

Dynamic Load Rating

Enclosure

Weight of Single Row Bearing

Weight

Operating Temperature Range

d

D

B

2B

d1

d2

D1

r

r1

Contact Angle

da min

Da max

ras max

2014-07-29 | PRESS RELEASE

2014-05-09 | PRESS RELEASE