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Features: 1. Deep groove ball bearings are one of the most widely used rolling bearings. They are both used to accommodate loads in the radius and axial directions.2.With small friction, high limit speed radius and axial directions.This deep groove ball bearing is cost effective and a little maintenance.Application required: 1. Widely used in shoes, inline wheels, double row wheels, MTB, SUV and other extreme sports running equipment.2. Fan etc.3 Cooling, Skateboarding, Inline Skating, Roller Skating, Scooters, and other skating applications available for 3D printer wheel bearings, CNC, EMAX. It is also used in industrial engineering such as machinery, power transmission, instruments, household appliances, internal combustion engines, transportation vehicles, agricultural machinery, construction machinery, etc.