Item # QJ306, Four Point Ball Bearings On NTN Bearing Corp. of America

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	Item # QJ306, 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		11000 RPM

Limiting Speed - Grease		8000 RPM

Precision		Class 0

Configuration		One

Contact Angle		30 º

Radial Internal Clearance		CN

Static Load Rating		12900 lbf 57500 N 57.50 kN

Dynamic Load Rating		8900 lbf 39500 N 39.50 kN

Enclosure		Open

Weight		0.721 lb 0.327 kg

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

Dimensional Specifications

		Four Point Ball Bearings - Dimensions larger image

d		1.1811 in 30.000 mm

D		2.8346 in 72.000 mm

B		0.7480 in 19.000 mm

r		0.0433 in 1.100 mm

a		1.1811 in 30.000 mm

da min		1.4567 in 37.000 mm

Da max		2.5591 in 65.000 mm

ras max		0.0394 in 1.000 mm

Item # QJ306, Four Point Ball Bearings