See: SWORKz

SWORKz have introduced three new sets of rubber-sealed ball bearings for 1/10 and 1/8 buggies. These sets of high performance and yet reasonable priced rubber-sealed ball bearings feature red rubber seals for proper protection against dust, dirt and wet. The range includes 8x16x5mm, 5x13x4mm and 6x12x4mm ball bearings.