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 18.48 Kg40.71 lb

    Width (T)

    		 N/A 4.5 in114.3 mm

    B - Width

    		 N/A 4.4600 in113.284 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 6.57 in167 mm

    Housing Backing Shoulder Diameter - Frontface (Da)

    		 N/A 8.84 in224.54 mm

    Key Dimensions

    Cone Part Number

    		 N/A HM231149

    Cup Part Number

    		 N/A HM231110

    Related Assembly Number(s)

    		 N/A HM231149-902A5 HM231149-902A6

    Outer Spacer Part Number

    		 N/A HM231110EC

    Design Unit

    		 N/A Inch

    Bore (d)

    		 N/A 5.8750 in149.225 mm

    O.D. (D)

    		 N/A 9.3125 in236.538 mm
    Dynamic Radial Load Rating - 90M Revs (C90) 3 N/A 34800 lbf155000 N
    Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)4 N/A 60600 lbf269000 N
    K Factor 5 N/A 1.83
    e Factor 6 N/A 0.32

    Ratings

    C1 - Dynamic Radial Rating (1 million revolutions)7 N/A 234000 lbf1040000 N
    Ca90 - Dynamic Thrust Rating (90 million revolutions)8 N/A 19000 lbf84500 N

    Factors

    Y1 Factor 9 N/A 2.12
    Y2 Factor 10 N/A 3.15
    • 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.