Item # QJ307, Four Point Ball Bearings On NTN Bearing Corp. of America

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	Item # QJ307, Four Point Ball Bearings

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		Four-Point 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		9300 RPM

Limiting Speed - Grease		7000 RPM

Precision		Class 0

Configuration		One

Contact Angle		30 º

Radial Internal Clearance		CN

Static Load Rating		16400 lbf 73000 N 73.00 kN

Dynamic Load Rating		11100 lbf 49500 N 49.50 kN

Enclosure		Open

Weight		1.257 lb 0.570 kg

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

Dimensional Specifications

		Four Point Ball Bearings - Dimensions larger image

d		1.3780 in 35.000 mm

D		3.1496 in 80.000 mm

B		0.7087 in 18.000 mm

r		0.0433 in 1.100 mm

a		1.2992 in 33.000 mm

da min		1.7126 in 43.500 mm

Da max		2.8150 in 71.500 mm

ras max		0.0394 in 1.000 mm

Item # QJ307, Four Point Ball Bearings