2880-46 – Center Support Bearing – Mercedes Application – 1.181″ ID – 2.870″ Center Bearing To Base

The 2880-46 at 2.870" falls in the group of Mercedes tall-bracket center bearings, clustered with the 2.910" (2880-47) and 3.000" (2880-48) variants. These three units serve different Mercedes model configurations where the crossmember geometry produces slightly different bracket drop requirements.

• Bore ID: 1.181" (30 mm) -- verify the Mercedes stub shaft OD before installation
• Center to base: 2.870" -- measure the removed bearing with a digital caliper; the 0.040" difference from the 2880-47 is critical to measure accurately
• Rubber isolator: Mercedes-specification compound for the relevant model series
• The center support bearing bracket must seat flush on the crossmember -- use a straight edge to verify before torquing

Tip: Mercedes uses a corrosion-resistant coating on propshaft center bearing brackets at the factory. If the replacement bracket lacks this coating, apply a zinc-rich primer or underbody sealer to the bracket metal before installation -- especially in road salt environments where uncoated steel brackets corrode within 3--5 years and cause the rubber bond to fail prematurely.