Menu
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information Add to CAD Cart
Tapered Roller Bearings - 2TS-DM (Matched Bearing Assembly, Direct Mount)
Unit of Measure

Specifications

Cone Part Number

 N/A 389A

Cup Part Number

 N/A 382

Related Assembly Number(s)

 N/A 389A-90090

Outer Spacer Part Number

 N/A K84970

Design Unit

 N/A Inch

Dimensions

d - Bore

 N/A 2.1250 in53.975 mm

D - Cup Outer Diameter

 N/A 3.8750 in98.425 mm

T - Width

 N/A 1.8126 in46.04 mm

B - Width

 N/A 1.8328 in46.553 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.010 in0.3 mm
r - Cup Backface "To Clear" Radius2 N/A 0.030 in0.76 mm

db - Cone Backface Backing Diameter

 N/A 2.4 in61 mm

Da - Cup Frontface Backing Diameter

 N/A 3.66 in92.96 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 6280 lbf28000 N
C1 - Dynamic Radial Rating (1 million revolutions)4 N/A 42200 lbf188000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)5 N/A 3810 lbf16900 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 N/A 10900 lbf48700 N

Factors

K - Factor7 N/A 1.65
e - ISO Factor8 N/A 0.35
Y1 - ISO Factor9 N/A 1.91
Y2 - ISO Factor10 N/A 2.84
  • 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 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 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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
By clicking Submit, you consent to the personal information you provide being used in the manner as described in our Privacy Notice, including access to that information by Timken personnel who may be located outside your home country. In addition, you agree that the CAD drawings are for your personal, one-time use only, and that you will not modify or create any compilation or derivative work using the CAD drawings or distribute or display the CAD drawings on any website or other media.