General description Set of 8 ball bearings designed for Polaris 280 and 180 pool cleaner wheels, compatible with models C60 and C-60. Constructed with a plastic bearing body and stainless steel balls, ensuring optimal operation and enhanced durability. Technical specifications External diameter: 28 mm Internal diameter: 15 mm Installation Replacing the bearings of your Polaris robot is quick and easy, allowing for a DIY approach.