Luk All LuK FAG Mercedes-Benz wheel bearings are maintenance free and have been designed for the entire life of the vehicle. LuK Mercedes-Benz Wheel Bearings are compact bearing units (ball bearings or tapered roller bearings) which are provided with a defined and pre-adjusted bearing clearance, “for-life” lubrication and sealing.
Ruville 
SKF For driven-wheel applications the Mercedes-Benz wheel bearing arrangement must still accommodate suspensions loads and for front-drive arrangements. For non-driven wheels, front or rear axle applications, compact Mercedes-Benz wheel bearing units available with a range of passive or active speed sensors for integration with the Mercedes-Benz's ABS or TCS active safety systems's.
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