Yokomo YOKBB850C2 5x8x2.5mm Ceramic Bearing for RC Hubs  [YOKBB850C2]

Yokomo YOKBB850C2 Compact Ceramic Bearing

The Yokomo YOKBB850C2 is a 5x8x2.5mm ceramic ball bearing built for RC-scale use where a small, low-friction bearing is required. As a dimension-matched alternative to standard 5x8x2.5mm steel bearings, it suits wheel hubs, gearboxes, motor shafts and other compact bearing seats on electric RC cars and related models.

Construction pairs ceramic balls with stainless steel races to combine low rolling resistance with solid wear resistance. In service this typically reduces bearing drag versus some all-steel bearings while keeping mounting and spacing compatibility with common RC parts.

Installation advice: press new bearings squarely into hubs or carriers and do not strike the races directly. Use a bearing driver or a correctly sized socket to avoid deforming the inner or outer race. For extraction, employ a bearing puller or carefully press out from the opposite side to protect hub threads and sealed components.

Maintenance and tuning: check bearings regularly for grit and wear, clean with an appropriate solvent when contaminated, and apply light oil or grease suitable for ceramic/steel bearings to match track conditions and desired drivetrain feel. Proper lubrication will extend service life and preserve smooth rotation.

For builders swapping small bearings to ceramic alternatives, the BB-850C2 offers a direct-dimension option with reduced rolling resistance and broad compatibility across common RC bearing mounts.