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 L879947

Cup Part Number

 N/A L879910

Inner Spacer Part Number

 N/A L879947XA

Outer Spacer Part Number

 N/A L879910EA

Bore (d)

 N/A 24.0000 in609.600 mm

O.D. (D)

 N/A 30.0000 in762.000 mm

Width (T)

 N/A 8.0896 in205.476 mm
Dynamic Radial Load Rating - 1M Revs (C1)1 N/A 775000 lbf3450000 N
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 115000 lbf513000 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)3 N/A 201000 lbf894000 N
e Factor 4 N/A 0.49
K Factor 5 N/A 1.2

Other Dimensions

Weight

 N/A 198.42 Kg437.44 lb

Outer Ring Width (C)

 N/A 6.2146 in157.851 mm
Max Shaft Fillet Radius6 N/A 0.25 in6.35 mm
Max Housing Fillet Radius7 N/A 0.06 in1.5 mm

Shaft Backing Shoulder Dia. - Backface (db)

 N/A 25.28 in642 mm

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 29.27 in743.46 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)8 N/A 96300 lbf428000 N

Factors

Y1 Factor 9 N/A 1.38
Y2 Factor 10 N/A 2.06
  • 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.