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1. After Sales Service
   1. FAQ

      1.How about the durability of bearing?
      A: The use of different environments, durability time is different, generally have a 2-year shelf life
      
      2.Do you need frequent maintenance?
      A: No 
      
      3.How do I select different accuracy levels for the bearing?

      A:

      P0/ABEC-1/JIS0 OR P6/ABEC-3/JIS6	Computer printers, copy machine-feed rollers, micro motors, stepping motors, fan motors, VCR pinch rollers
      P5/ABEC-5/JIS5 OR P4/ABEC-7/JIS4	High precision motors, hard disk drive motors, dental spindles, servo motors, encoders, VCR drum spindles, VCR capstan motors, polygonal mirror scanner motors
      P4/ABEC-7/JIS4	High frequency spindles, gyro motors, gyro gimbals

      
      4.Bearing open type or closed type is better?
      A: Closed Type can be used in dirty environment, while open type can be used in clean environment.