Item # 2580/2520, Tapered Roller Set - Inch Series and J Series On NTN Bearing Corp. of America

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	Item # 2580/2520, Tapered Roller Set - Inch Series and J 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 - Grease		5700 RPM

Style		Cone & Cup

Precision Rating		Class 4

Cone Number		2580

Cup Number		2520

Configuration		One

Lubrication		w/o Oil Hole

e (Axial Load Factor)		0.27

Y2 (Axial Load Factor)		2.19

Static Load Rating		18300 lbf 81500 N 81.50 kN

Dynamic Load Rating		15500 lbf 69000 N 69.00 kN

Enclosure		Open

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

Dimensional Specifications

		Tapered Roller Set - Inch Series and J Series - Dimensions larger image

B		1.2500 in 31.750 mm

D		2.6150 in 66.421 mm

Wo		0.8125 in 20.638 mm

Wi		0.9983 in 25.357 mm

W		1.0000 in 25.400 mm

r		0.1300 in 3.300 mm

R		0.03 in 0.8 mm

a (Effective Load Center)		-0.3600 in -9.100 mm

U		1.52 in 38.5 mm

V		1.48 in 37.5 mm

X		2.44 in 62.0 mm

Z		2.24 in 57.0 mm

ras max		0.0315 in 0.8 mm

r1as max		0.1299 in 3.000 mm

Item # 2580/2520, Tapered Roller Set - Inch Series and J Series