Swiss Tin Box Bearings is a high precision grade 5 chrome steel balls for maximum speeds, Precision-Polished chrome steel races reduce friction and increase speed.Precision-Polished chrome steel races reduce friction and increase speedInner race locks shield to provide barrier and keep bearings cleanerNon-contact removable rubber shield designed for minimal resistanceBearings spacers reduce side loading to extend the life to the bearingsManufactured with Swiss precision and quality
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