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Timken's wheel end system is a self-retained, integrated package bearing featuring active sensing technology that offers design flexibility and bolt-on simplicity. This hub assembly improves stiffness and brake performance, reduces weight and envelope size, lowers assembly costs and reduces warranty claims.

Features & Benefits:

  • Integrated raceway and hub increases stiffness as much as 30 % over conventional systems. Also eliminates the discrete race variables between the bearing and hub, providing a closer preload setting range.
  • Narrow overall package width and reduced radial section thickness lowers unsprung weight, improving vehicle maneuverability and fuel efficiency.
  • Features a pre-sealed, pre-greased and pre-set design with integrated sensing technology for anti-lock braking systems, total traction control and vehicle dynamics systems.
  • Hub-forming technology reduces strain on related components
  • Fully serviceable wheel speed sensor (where applicable) is internally mounted and protected from road hazards, debris and potential damage.
ABS TypeEncoder
Bearing TypeBALL
Bolt Circle Diameter B (in)4.724
Bolt Quantity4.000
Bolt Size (in)M12X1.5
Brake Pilot Dia (in)3.110
Driven_Non DrivenNON DRIVEN
Flange (#)2.000
Flange Diameter (in)5.472
Flange Offset (in)1.998
Generation Type2
Hub Pilot Dia G (in)3.543
Roll Form (Y)Y
Wheel Pilot Dia (mm)74.000
Wheel Studs (Y/N)N
Wheel Stud Qty5.000
Wheel Stud Size (in)M12X1.5
Alternate/OEM Part Number(s): 31221093427, 31221093428

TIMKEN Warranty Information:
12 months