Yokomo BB-126N-4 6x12 Bearings narrow heavy-duty ball bearing set (4 pcs)  [BB-126N-4]

Narrow 6x12 Ball Bearings (4 pcs)

The Yokomo BB-126N-4 6x12 bearings are a narrow heavy-duty ball bearing set supplied as four pcs intended specifically for ZM-415SH. These bearings are sized for narrow hub applications and are presented as replacement units for the stated model, designed for RC-scale wheel and drivetrain use only.

Compatibility is limited to ZM-415SH as listed, do not assume fitment with other hubs or chassis without verification. When replacing bearings, confirm the hub bore and bearing orientation, seat each bearing fully and evenly, and replace the full set to maintain balanced wheel rotation and predictable handling.

In tuning terms, switching to a heavy-duty narrow bearing set targets load capacity and durability at wheel or gearbox interfaces; expect consistent rotational support where narrow bore bearings are specified, and check clearance to adjacent components before final assembly.