Stepper MotorChina 6X13X5 mm F6-13 F6-13m Flat Miniature Thrust Ball Bearing for Stepper Motors Reduced Speed Devices Pressure Rotors Fitness and Sports Equipment, Find details about China Thrust Ball Bearing, Thrust Bearing from 6X13X5 mm F6-13 F6-13m Flat Miniature Thrust Ball Bearing for Stepper Motors Reduced Speed Devices Pressure Rotors Fitness and Sports Equipment