... 1.13 year experience, 2.Certificate ISO9001.2008, 3.Material: Bearing steel, 4.Various size and type, 5.15-30days delivery ... . Insert ball bearing:(1)Type range: UC201~215, UK205~218, SA201~211, ... steel, stainless steel, Thermoplastic, Zinc Alloy, pressed steel house.Bearing Housing Product Color: Green; Blue; According to customer’s requirement. Packaging ...