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
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    Unit of Measure

    Other Dimensions

    Weight

    		 N/A 2.08 Kg4.6 lb

    Width (T)

    		 N/A 2.4376 in61.915 mm

    B - Width

    		 N/A 2.2500 in57.150 mm
    Max Shaft Fillet Radius1 N/A 0.01 in0.30 mm
    Max Housing Fillet Radius2 N/A 0.030 in0.76 mm

    Shaft Backing Shoulder Diameter - Backface (db)

    		 N/A 2.56 in65 mm

    Housing Backing Shoulder Diameter - Frontface (Da)

    		 N/A 3.62 in91.90 mm

    Key Dimensions

    Cone Part Number

    		 N/A HM903249

    Cup Part Number

    		 N/A HM903210

    Related Assembly Number(s)

    		 N/A HM903249-90015 HM903249-903A2 HM903249-904A1

    Outer Spacer Part Number

    		 N/A HM903210ES

    Design Unit

    		 N/A Inch

    Bore (d)

    		 N/A 1.7500 in44.450 mm

    O.D. (D)

    		 N/A 3.7500 in95.250 mm
    Dynamic Radial Load Rating - 90M Revs (C90) 3 N/A 7950 lbf35400 N
    Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)4 N/A 13800 lbf61600 N
    K Factor 5 N/A 0.79
    e Factor 6 N/A 0.74

    Ratings

    C1 - Dynamic Radial Rating (1 million revolutions)7 N/A 53400 lbf237000 N
    Ca90 - Dynamic Thrust Rating (90 million revolutions)8 N/A 10100 lbf44800 N

    Factors

    Y1 Factor 9 N/A 0.91
    Y2 Factor 10 N/A 1.36
    • 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.