HM127442-HM127415XD Timken AP TM Railroad Tapered Roller Bearing HM-127415-XD HM-127442

Product Description: 

Key Features

  • Available in single, double and multi-row configurations, as well as proprietary sizes
  • Designed in collaboration with OE engineers to design, engineer and test bearings for premium performance in many applications
  • Power dense designs allow for heavier loads and can help extend bearing life
  • Optimized internal geometry lower torque and operating temperatures to extend lubrication system life
  • Can be designed to withstand high-corrosive, high-temperature and vacuum or low-lubrication environments with proprietary enhancements

Key Dimensions

Cone Part Number

HM127442

Cup Part Number

HM127415XD

Bore (d)

5.1168 in129.967 mm

O.D. (D)

8.1875 in207.963 mm

Width (T)

5.7600 in146.304 mm
Dynamic Radial Load Rating - 1M Revs (C1) 1164000 lbf732000 N
Dynamic Radial Load Rating - 90M Revs (C90) 224500 lbf109000 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)342600 lbf190000 N
e Factor 40.26
K Factor 52.21

Series

HM127400

Other Dimensions

Outer Ring Width (C)

6 in152.4 mm
Max Shaft Fillet Radius60.06 in1.5 mm
Max Housing Fillet Radius70.04 in1.0 mm

Shaft Backing Shoulder Diameter - Backface (db)

5.59 in142 mm

Housing Backing Shoulder Diameter - Frontface (Da)

7.80 in198.10 mm

Cage Location Relative to Backface (Aa)

0.06 in1.5 mm
Effective Center Location8-0.57 in-14.5 mm

Inner Ring Width (B)

2.2500 in57.150 mm

Weight

37.96 lb17.216 Kg

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)911100 lbf49300 N

Factors

Y1 Factor 102.55
Y2 Factor 113.8
Geometry Factor (Cg) 120.116
  • 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 Negative value indicates effective center inside cone backface.
  • 9 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.
  • 10 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 11 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 12 Geometry constant for Lubrication Life Adjustment Factor a3l.