Item # 320/28X, Tapered Roller Set - Metric Series On NTN Bearing Corp. of America

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	Item # 320/28X, Tapered Roller Set - Metric Series

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		Tapered Roller Bearing

Bore Type		Round

Material		Case Carburized Steel

Limiting Speed - Oil		9700 RPM

Limiting Speed - Grease		7300 RPM

Style		Cone & Cup

Precision Rating		Class 4

Configuration		One

Lubrication		w/o Oil Hole

e (Axial Load Factor)		0.43

Y2 (Axial Load Factor)		1.39

Y0 (Axial Load Factor)		0.77

Static Load Rating		9100 lbf 40500 N 40.50 kN

Dynamic Load Rating		7400 lbf 33000 N 33.00 kN

Enclosure		Open

Weight		0.322 lb 0.146 kg

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

Dimensional Specifications

		Tapered Roller Set - Metric Series - Dimensions larger image

d		1.1024 in 28.000 mm

D		2.0472 in 52.000 mm

C		0.4724 in 12.000 mm

B		0.6299 in 16.000 mm

a (Effective Load Center)		-0.1378 in -3.500 mm

T		0.6299 in 16.000 mm

r		0.0400 in 1.000 mm

R		0.04 in 1.0 mm

da		1.32 in 33.5 mm

db		1.30 in 33.0 mm

Da		1.83 in 46.5 mm

Da min		1.77 in 45.0 mm

Db		1.93 in 49.0 mm

Item # 320/28X, Tapered Roller Set - Metric Series