Item # QJ309, Four Point Ball Bearings On NTN Bearing Corp. of America

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	Item # QJ309, 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		7400 RPM

Limiting Speed - Grease		5500 RPM

Precision		Class 0

Configuration		One

Contact Angle		30 º

Radial Internal Clearance		CN

Static Load Rating		27200 lbf 121000 N 121.00 kN

Dynamic Load Rating		17800 lbf 79000 N 79.00 kN

Enclosure		Open

Weight		2.293 lb 1.040 kg

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

Dimensional Specifications

		Four Point Ball Bearings - Dimensions larger image

d		1.7717 in 45.000 mm

D		3.9370 in 100.000 mm

B		0.9843 in 25.000 mm

r		0.0591 in 1.500 mm

a		1.6535 in 42.000 mm

da min		2.1063 in 53.500 mm

Da max		3.6024 in 91.500 mm

ras max		0.0591 in 1.500 mm

Item # QJ309, Four Point Ball Bearings