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 5.19 Kg11.44 lb

    Width (T)

    		 N/A 3.1496 in80 mm

    B - Width

    		 N/A 3.1496 in80 mm
    Max Shaft Fillet Radius1 N/A 0.01 in0.30 mm
    Max Housing Fillet Radius2 N/A 0.140 in3.56 mm

    Shaft Backing Shoulder Diameter - Backface (db)

    		 N/A 4.41 in112 mm

    Housing Backing Shoulder Diameter - Frontface (Da)

    		 N/A 5.57 in141.00 mm

    Key Dimensions

    Cone Part Number

    		 N/A HM218248

    Cup Part Number

    		 N/A HM218210

    Related Assembly Number(s)

    		 N/A HM218248-90010 HM218248-90011 HM218248-90012 HM218248-902A2

    Outer Spacer Part Number

    		 N/A HM218210EA

    Design Unit

    		 N/A Inch

    Bore (d)

    		 N/A 3.5423 in89.974 mm

    O.D. (D)

    		 N/A 5.7864 in146.975 mm
    Dynamic Radial Load Rating - 90M Revs (C90) 3 N/A 18900 lbf84200 N
    Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)4 N/A 33000 lbf147000 N
    K Factor 5 N/A 1.76
    e Factor 6 N/A 0.33

    Ratings

    C1 - Dynamic Radial Rating (1 million revolutions)7 N/A 127000 lbf565000 N
    Ca90 - Dynamic Thrust Rating (90 million revolutions)8 N/A 10800 lbf47900 N

    Factors

    Y1 Factor 9 N/A 2.03
    Y2 Factor 10 N/A 3.02
    • 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.