Yokomo YOKBB850C2 5x8x2.5mm Ceramic Bearing Upgrade  [YOKBB850C2]

Yokomo BB-850C2: Performance-Focused 5x8x2.5 Bearing

The Yokomo YOKBB850C2 is a 5x8x2.5mm ceramic ball bearing designed for RC use where reduced friction and compact sizing are required. It is a dimension-equivalent option for standard 5x8x2.5mm bearings, appropriate for wheel hubs, gearbox internals, motor shafts and similar bearing locations on electric RC vehicles.

Ceramic balls with stainless steel races offer lower rolling resistance while retaining robust race durability. This hybrid construction generally yields smoother rotation than some all-steel bearings and keeps compatibility with standard RC retention and spacing practices.

Fitment guidance: press bearings in squarely using a driver or socket sized to the outer race. Avoid delivering impact to the inner or outer race and protect surrounding components during removal with a puller or controlled pressing from the opposite side.

Tuning notes: bearing choice and lubrication affect drivetrain feel and response. Clean contaminated bearings, then apply a light lubricant suited to ceramic/steel hybrids; balancing lubrication level will influence drag and service life based on driving conditions.

As a compact ceramic option, the BB-850C2 suits builders and tuners who want reduced rolling resistance without altering standard bearing mounts.