imported bearings 6300 6301~6328 6200 6201 6202 6203 6204 6205 6206 6000 6001 6002 6003 6004 6005 6006 6007 6008 ZZ DDU high speed bearingsMore models can contact the sellerDDU stands for plastic cover/sealing ring, which has friction with the inner ring, and is characterized by quietness. The operating temperature is below 100 degrees Celsius. It is generally used in air-conditioning motors, home appliances and other pollution-free environments.
ZZ means iron cover/dust cover, no contact with the inner ring, high temperature resistance, generally used in mechanical equipment, machine tool transmission