Item # 7921, Single Angular Contact Ball Bearing - Open Type On NTN Bearing Corp. of America

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	Item # 7921, Single Angular Contact Ball Bearing - Open Type

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		Machined

Cage Material		Phenolic

Ball Material		Steel

Limiting Speed - Oil		5900 RPM

Limiting Speed - Grease		4400.0 RPM

Configuration		One

Static Load Rating		12300 lbf 54500 N 54.50 kN

Dynamic Load Rating		10900 lbf 48500 N 48.50 kN

Enclosure		Open

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

Dimensional Specifications

		Single Angular Contact Ball Bearings - Open Type - Dimensions larger image

d		4.1339 in 105.000 mm

D		5.7087 in 145.000 mm

B		0.7874 in 20.000 mm

r		0.0433 in 1.100 mm

r1		0.0236 in 0.600 mm

Contact Angle		30 º

a (Load Center)		1.8110 in 46.000 mm

da min		4.4094 in 112.000 mm

Da max		5.4331 in 138.000 mm

Db max		5.5315 in 140.500 mm

ras max		0.0394 in 1.000 mm

r1as max		0.0236 in 0.600 mm

Double Row Width		1.5748 in 40.000 mm

Triple Row Width		2.3622 in 60.000 mm

Quadruple Row Width		3.1496 in 80.000 mm

Item # 7921, Single Angular Contact Ball Bearing - Open Type