Item # 7320BDB, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement On NTN Bearing Corp. of America

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	Item # 7320BDB, 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		3300 RPM

Limiting Speed - Grease		2400.0 RPM

Precision		ISO Class 0

Configuration		Two

Preload		Normal

Static Load Rating		79807 lbf 355000 N 355.00 kN

Dynamic Load Rating		69691 lbf 310000.0 N 310.00 kN

Enclosure		Open

Weight		32.364 lb 14.680 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		3.9370 in 100.000 mm

D		8.4646 in 215.000 mm

B		1.8504 in 47.000 mm

2B		3.7008 in 94.000 mm

r		0.1181 in 3.000 mm

r1		0.0433 in 1.100 mm

Contact Angle		40 º

da min		4.4882 in 114.000 mm

db min		4.2126 in 107.000 mm

Da max		7.9134 in 201.000 mm

Db max		8.1890 in 208.000 mm

ras max		0.0984 in 2.500 mm

r1as max		0.0394 in 1.000 mm

Item # 7320BDB, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement