Aerospace / Military
Aerospace Series General Aviation Rod Ends Spherical Bearings Mil Spec Series Rod Ends Spherical Bearings Bushings Approved Part Numbers
Commercial / Industrial
Rod End Bearings Inch Rod Ends Metric Rod Ends Spherical Bearings Inch Spherical Bearings Metric Spherical Bearings
Technical Resources
Terms and Definitions Articles Technical Data FAQs Key Term Translation Custom Engineered Products
Online Catalog
Engineers power search our entire catalog of bearing and bushings, with access to every attribute and technical specification possible. View our online catalog...
CAD (0) ▾
  • Cart is empty
  1. Request CAD files
Request Information Add to CAD Cart
This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Unit of Measure

Specifications

Series

 N/A JF4000

Cone Part Number

 N/A JF4049

Cup Part Number

 N/A JF4010

Design Unit

 N/A Metric

Cage Material

 N/A Stamped Steel

Related Assembly Number(s)

 N/A JF4049-90NA1

Dimensions

d - Bore

 N/A 40 mm1.5748 in

D - Cup Outer Diameter

 N/A 85 mm3.3465 in

B - Cone Width

 N/A 32.500 mm1.2795 in

C - Cup Width

 N/A 28 mm1.1024 in

T - Bearing Width

 N/A 33.000 mm1.2992 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 2.540 mm0.1 in
r - Cup Backface "To Clear" Radius2 N/A 2.03 mm0.08 in

da - Cone Frontface Backing Diameter

 N/A 49 mm1.93 in

db - Cone Backface Backing Diameter

 N/A 55 mm2.17 in

Da - Cup Frontface Backing Diameter

 N/A 80.77 mm3.18 in

Db - Cup Backface Backing Diameter

 N/A 74.93 mm2.95 in

Ab - Cage-Cone Frontface Clearance

 N/A 2.5 mm0.1 in

Aa - Cage-Cone Backface Clearance

 N/A 0.5 mm0.02 in
a - Effective Center Location3 N/A -10.2 mm-0.4 in

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 42100 N9470 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 162000 N36500 lbf

C0 - Static Radial Rating

 N/A 160000 N35900 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 24800 N5580 lbf

Factors

K - Factor7 N/A 1.7
e - ISO Factor8 N/A 0.34
Y - ISO Factor9 N/A 1.74

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 39.5

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 13.5
Cg - Geometry Factor10 N/A 0.0841
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Negative value indicates effective center inside cone backface.
  • 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 5 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 6 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
  • 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 10 Geometry constant for Lubrication Life Adjustment Factor a3l.