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Drivetrain

Fahren Insight on Wheel Bearing Kit Replacement

FAHREN provides some technical insight on wheel bearing kits (WBKs) as part of their comprehensive and diverse component portfolio.

 

SIGNS FOR REPLACEMENT

There are several symptoms that indicate a failing WBK. The most common symptoms include:

  • Grinding or knocking sounds (at low speed)
  • Whining sounds (at high speed)
  • Uneven tyre wear
  • Shuddering or vibrations at constant speed

These symptoms are likely to surface as a result of poor installation, damage from an accident or a damaged wheel bearing seal. A damaged seal allows moisture and debris to enter the bearing, leading to failure over time.

REPLACEMENT TIPS

  • Fahren recommends that the following guidelines be observed to help ensure proper replacement:
  • Work with clean tools in clean surroundings
  • Always choose the correct grease
  • Follow the correct installation procedure as advised by the vehicle manufacturers.
  • Be sure to check the condition of the housing and axle when changing wheel bearings. Even the smallest wear will lead to misalignment, resulting in premature failure.
  • Be mindful to check the contact surface for the seal lip. The smallest mark or rust can damage the seal lip, allowing water penetration and eventual corrosion.
  • Hub unit clearances are already set at the factory with the correct preload – never attempt to set clearances on hub units. However, the installer can tighten the nut to the correct preload as advised by the workshop manual.

Most importantly, never attempt to take a hub unit apart before mounting. This will damage the raceways and seals, destroying the bearings that will lead to failure.

SUPPORT FOR PROPER INSTALMENT

To help ensure that users perform a proper installation, Fahren has a dedicated support team that can be reached via technical helpline (03333 136 591) or email (technical@fahren-auto.com).

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