Gen 1: Wheel Bearings


The OE Advantage

As the leader in North American OE production of wheel hub assemblies, BCA provides highly engineered replacement parts. It’s embedded in both our commitment to the latest technological advancements, and our design philosophy of performance that’s always OE.

BCA has been an OE supplier for over 100 years, and is the acknowledged leader in providing category expertise, engineering excellence, and a comprehensive line of quality products. Products that include superior Gen 1, Gen 2, and Gen 3 hub units.

General Characteristics of Gen 1 Wheel Hub Units:

(ALWAYS refer to, and follow vehicle and product specifications)

  • Cartridge style wheel bearings
  • May either be a ball or tapered design
  • Are double row angular contact bearings
  • Most have a split inner ring
  • Presence of split inner ring indicates that when hand rotated, each half of the bearing has the ability to rotate independently of the other
  • Generally greased and sealed for life
  • Certain Gen 1 wheel bearings may include a wheel speed sensor magnetic impulse ring
  • The impulse ring is built into the seal on one side of the bearing
  • Gen 1 wheel bearings with an impulse ring can only be installed in one direction
  • The encoder ring must be placed next to the wheel speed sensor in order for Anti-Lock Braking System, Traction Control System, and Stability Control System to function

When Installing Gen 1:

(ALWAYS refer to and follow vehicle and product specifications)

  • As precision-engineered components, Gen 1 wheel hub units are susceptible to damage from air guns
  • Do not use an impact wrench when installing Gen 1 units
  • Use a torque wrench to apply the specified torque value
  • Only use the axle torque specifications and manufacturer’s recommended installation procedures
  • Do not use a torque wrench as your primary tool to loosen or tighten fasteners

General Applications for Gen 1 Wheel Hub Units:

(ALWAYS refer to and follow vehicle and product specifications)

  • Gen 1 wheel bearing can be found in driven front and rear wheels
  • Gen 1 wheel bearings may also be in integral drum designs on the non-driven wheels of smaller cars
  • BCA OE quality replacement parts are your smart, reliable solutions for Gen 1 installations

Watch This Quick Video for Great Tips From a Real Tech!

Training professional and Aftermarket Application Engineer, Ted Bogel, discusses the differences between Gen 1, Gen 2, and Gen 3 wheel bearings. He also identifies which types are suitable for driven and non-driven applications. Includes brief overview of installation process for each wheel bearing.


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