The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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2TS-DM assemblies are comprised of two single-row bearings with abutting back facing inner rings and an outer ring spacer with lubricating holes is typical. These are generally used at fixed positions on rotating shaft applications.

Design Attributes:
  • Two single row bearings, with or without a spacer
  • When spacers are used, bearing is furnished as a preset, matched assembly
  • Spacers available with or without lubricant grooves and holes
    •
    Unit of Measure

    Other Dimensions

    Weight

    		 N/A 11.91 Kg26.22 lb

    Width (T)

    		 N/A 2.625 in66.675 mm

    B - Width

    		 N/A 2.5 in63.5 mm
    Max Shaft Fillet Radius1 N/A 0.060 in1.5 mm
    Max Housing Fillet Radius2 N/A 0.130 in3.30 mm

    Shaft Backing Shoulder Diameter - Backface (db)

    		 N/A 9.61 in244 mm

    Housing Backing Shoulder Diameter - Frontface (Da)

    		 N/A 11.34 in288 mm

    Key Dimensions

    Cone Part Number

    		 N/A 544090

    Cup Part Number

    		 N/A 544118

    Related Assembly Number(s)

    		 N/A 544090-90027

    Outer Spacer Part Number

    		 N/A Y4S-544118

    Design Unit

    		 N/A Inch

    Bore (d)

    		 N/A 9.0000 in228.600 mm

    O.D. (D)

    		 N/A 11.8125 in300.038 mm
    Dynamic Radial Load Rating - 90M Revs (C90) 3 N/A 13900 lbf61600 N
    Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)4 N/A 24100 lbf107000 N
    K Factor 5 N/A 1.45
    e Factor 6 N/A 0.4

    Ratings

    C1 - Dynamic Radial Rating (1 million revolutions)7 N/A 93000 lbf414000 N
    Ca90 - Dynamic Thrust Rating (90 million revolutions)8 N/A 9530 lbf42400 N

    Factors

    Y1 Factor 9 N/A 1.68
    Y2 Factor 10 N/A 2.5
    • 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 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.
    • 5 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
    • 6 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
    • 7 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
    • 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.