Item # 7318BDB, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement On NTN Bearing Corp. of America

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	Item # 7318BDB, 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		3700 RPM

Limiting Speed - Grease		2700 RPM

Precision		ISO Class 0

Configuration		Two

Preload		Normal

Static Load Rating		60500 lbf 270000 N 270.00 kN

Dynamic Load Rating		57000 lbf 254000 N 254.00 kN

Enclosure		Open

Weight		25.805 lb 11.705 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		3.5433 in 90.000 mm

D		7.4803 in 190.000 mm

B		1.6929 in 43.000 mm

2B		3.3858 in 86.000 mm

r		0.1181 in 3.000 mm

r1		0.0433 in 1.100 mm

Contact Angle		30 º

da min		4.0945 in 104.000 mm

db min		3.8189 in 97.000 mm

Da max		6.9291 in 176.000 mm

Db max		7.2047 in 183.000 mm

ras max		0.0984 in 2.500 mm

r1as max		0.0394 in 1.000 mm

Item # 7318BDB, Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement