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 48200

Cone Part Number

 N/A NA48290SW

Design Units

 N/A Imperial

Cage Type

 N/A Stamped Steel

Dimensions

d - Cone Bore

 N/A 5 in127 mm

B - Cone Width

 N/A 1.8437 in46.83 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.14 in3.556 mm

da - Cone Frontface Backing Diameter

 N/A 0 in0 mm

db - Cone Backface Backing Diameter

 N/A 5.55 in141 mm

Ab - Cage-Cone Frontface Clearance

 N/A -0.04 in-1 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.22 in5.6 mm
a - Effective Center Location2 N/A -0.37 in-9.4 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 15600 lbf69400 N
C1 - Dynamic Radial Rating (1 million revolutions)4 N/A 60200 lbf268000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)5 N/A 8160 lbf36300 N

Factors

K - Factor6 N/A 1.91

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 353

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 91.4
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 Negative value indicates effective center inside cone backface.
  • 3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 4 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 5 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.
  • 6 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.