2TS-IM assemblies are comprised of two single-row bearings with an inner and outer ring spacer. In some applications, a shoulder in the bearing housing replaces the outer ring spacer.

Design Attributes
  • Stainless steel ball bearing inserts with set screw
  • Steel spacers are used to create Bench End Play (BEP) or Preload (BPL) in the bearing assembly
  • Available with or without spacers
  • Spacers preset during manufacture
Unit of Measure

Key Dimensions

Cone Part Number

 N/A L610549

Cup Part Number

 N/A L610510

Related Assembly Number(s)

 N/A 388A-90176

Inner Spacer Part Number

 N/A X1S-388A

Bore (d)

 N/A 2 1/2 in63.500 mm

O.D. (D)

 N/A 3.7188 in94.458 mm

Width (T)

 N/A 1.9698 in50.033 mm
Dynamic Radial Load Rating - 1M Revs (C1)1 N/A 26200 lbf117000 N
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 3910 lbf17400 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)3 N/A 6800 lbf30200 N
e Factor 4 N/A 0.42
K Factor 5 N/A 1.38

Other Dimensions

Weight

 N/A 1.08 Kg2.38 lb

Outer Ring Width (C)

 N/A 1.5928 in40.457 mm
Max Shaft Fillet Radius6 N/A 0.06 in1.5 mm
Max Housing Fillet Radius7 N/A 0.03 in0.8 mm

Shaft Backing Shoulder Dia. - Backface (db)

 N/A 2.8 in71 mm

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 3.62 in91.90 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)8 N/A 2840 lbf12600 N

Factors

Y1 Factor 9 N/A 1.59
Y2 Factor 10 N/A 2.37
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 3 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.
  • 4 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 5 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 6 These maximum fillet radii will be cleared by the bearing corners.
  • 7 These maximum fillet radii will be cleared by the bearing corners.
  • 8 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.
  • 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.