Item # 7312DB, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement On NTN Bearing Corp. of America

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	Item # 7312DB, 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		5500 RPM

Limiting Speed - Grease		4100 RPM

Precision		ISO Class 0

Configuration		Two

Static Load Rating		29700 lbf 132000 N 132.00 kN

Dynamic Load Rating		33000 lbf 146000 N 146.00 kN

Enclosure		Open

Weight		7.760 lb 3.520 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		2.3622 in 60.000 mm

D		5.1181 in 130.000 mm

B		1.2205 in 31.000 mm

2B		2.4409 in 62.000 mm

r		0.0827 in 2.100 mm

r1		0.0433 in 1.100 mm

Contact Angle		30 º

da min		2.8346 in 72.000 mm

Db max		4.8425 in 123.000 mm

ras max		0.0787 in 2.000 mm

r1as max		0.0394 in 1.000 mm

Item # 7312DB, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement