Item # 52400A/52639, Tapered Roller Set - Inch Series and J Series On NTN Bearing Corp. of America

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	Item # 52400A/52639, 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

Style		Cone & Cup

Precision Rating		Class 4

Cone Number		52400A

Cup Number		52639

Configuration		One

Lubrication		w/o Oil Hole

e (Axial Load Factor)		0.47

Y2 (Axial Load Factor)		1.26

Static Load Rating		77500 lbf 345000 N 345.00 kN

Dynamic Load Rating		46000 lbf 205000 N 205.00 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		4.0000 in 101.600 mm

D		6.3750 in 161.925 mm

Wo		1.5625 in 39.688 mm

Wi		1.4219 in 36.116 mm

W		1.6250 in 41.275 mm

r		0.1300 in 3.300 mm

R		0.14 in 3.5 mm

a (Effective Load Center)		-0.0100 in -0.300 mm

U		4.61 in 117.0 mm

V		4.37 in 111.0 mm

X		6.18 in 157.0 mm

Z		5.83 in 148.0 mm

Item # 52400A/52639, Tapered Roller Set - Inch Series and J Series