4x8x3mm Bearing with Blue PTFE Heat Resistant Rubber Seal. (MR84-2RS) Plaig Bearings are a stronger, more reliable bearing with greater heat resistance and superior life to the standard factory bearings. We stock all other sizes of bearings for RC Cars and also sell Complete Bearing Kits for many popular brands of vehicles. If you can’t find the correct bearing by size or part number please Contact Us . Click here for Detailed Bearing Specifications Certain Brands use their own part numbers for bearings, here are a few that this size may correspond with: BLH4515 1605 7019 21105 MR84-2RS