Item # 7028CDB/GNP5, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement On NTN Bearing Corp. of America

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	Item # 7028CDB/GNP5, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement

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Duplex Angular Contact Ball Bearing - 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		Angular Contact Ball Bearing

Bore Type		Round

Material		High Carbon Chrome Steel

Cage Type		High Strength, 2 piece, Machined

Cage Material		Brass

Ball Material		Steel

Limiting Speed - Oil		4800 RPM

Limiting Speed - Grease		3600.0 RPM

Precision		ISO Class 5

Configuration		Two

Preload		Normal

Static Load Rating		65000 lbf 290000 N 290.00 kN

Dynamic Load Rating		48000 lbf 214000 N 214.00 kN

Enclosure		Open

Weight		16.707 lb 7.578 kg

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

Dimensional Specifications

		Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement - Dimensions larger image

d		5.5118 in 140.000 mm

D		8.2677 in 210.000 mm

B		1.2992 in 33.000 mm

2B		2.5984 in 66.000 mm

d1		6.4016 in 162.600 mm

D1		7.3780 in 187.400 mm

D2		7.7283 in 196.300 mm

r		0.0787 in 2.000 mm

r1		0.0394 in 1.000 mm

Contact Angle		15 º

da min		5.9055 in 150.000 mm

Da max		7.8740 in 200.000 mm

Db max		8.0512 in 204.500 mm

ras max		0.0787 in 2.000 mm

r1as max		0.0394 in 1.000 mm

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Item # 7028CDB/GNP5, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement

Ordering Options

Type

Bore Type

Material

Cage Type

Cage Material

Ball Material

Limiting Speed - Oil

Limiting Speed - Grease

Precision

Configuration

Preload

Static Load Rating

Dynamic Load Rating

Enclosure

Weight

Operating Temperature Range

d

D

B

2B

d1

D1

D2

r

r1

Contact Angle

da min

Da max

Db max

ras max

r1as max

2014-07-29 | PRESS RELEASE

2014-05-09 | PRESS RELEASE