item No:25642; TPR wheel, 5inch Ball bearing and bushing or Delrin Bearing use for industrial carts ,hotels,foodservic casterItem ... NO:25642 systemsmaterial: PP Wheel , PP coreBearing:Ball bearing,and bushing, or Delrin BearingHardness:90A, 75ADiameter:5inchApplicable Temperature: -20 - 80centidegreeFORKMaterial: High ...