Description
Sealed Bearing Kit for the ARRMA Big Rock 4×4 3S is a maintenance replacement set designed to keep the vehicle’s drivetrain turning smoothly. It provides a ready-to-install assortment of sealed bearings to replace worn components and maintain reliable, low-friction operation between rebuilds.
The kit is designed for ARRMA Big Rock 4×4 3S and includes a complete selection of sealed bearings in common sizes: two 5x8x2.5mm bearings, four 6x12x4mm bearings, eight 12x18x4mm bearings, seven 10x15x4mm bearings, four 5x10x4mm bearings, and one 15x21x4mm bearing. Sealed bearings help resist dirt and moisture, supporting longer life and smoother rotation across the vehicle’s hubs and drive components. Bearing sizes can vary by model and production date, so refer to the owner’s manual to confirm the correct sizes for a given setup.
