1. Insert Ball Bearing with Collar four-star, with the top wire ... 2.Material:Chrome Steel, 3.High quality&Fast Delivery Factory Insert Ball Bearing with Collar four-star, with the top wire ... , Fan, Air conditioner, Microwave Oven ,Sewing Machine, Massage Chairs, Agriculture Machinery, Fitness equipment, Washing Machine, Office equipment. Dimensions(mm)Bearing Unit No ...