Item # 7309BDB, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement On NTN Bearing Corp. of America

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	Item # 7309BDB, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement

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		Pressed

Cage Material		Steel

Ball Material		Steel

Limiting Speed - Oil		7200 RPM

Limiting Speed - Grease		5400 RPM

Precision		ISO Class 0

Configuration		Two

Static Load Rating		18100 lbf 80500 N 80.50 kN

Dynamic Load Rating		21400 lbf 95000 N 95.00 kN

Enclosure		Open

Weight		3.735 lb 1.694 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		1.7717 in 45.000 mm

D		3.9370 in 100.000 mm

B		0.9843 in 25.000 mm

2B		1.9685 in 50.000 mm

r		0.0591 in 1.500 mm

r1		0.0394 in 1.000 mm

Contact Angle		40 º

da min		2.1063 in 53.500 mm

Db max		3.7205 in 94.500 mm

ras max		0.0591 in 1.500 mm

r1as max		0.0394 in 1.000 mm

Item # 7309BDB, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement