Features:1. This ball thrust bearing set features high precision, high speed, and wear small.2. Small frictional resistance, low power consumption, high mechanical efficiency.3. High grade steel ball, quiet and smooth rotation at a high speed.4. Small internal clearance and high machining precision.5. Suitable for machinery manufacturing, equipment installation and maintenance.Specification:Condition: Item Type: Thrust BearingBearing Material: Bearing SteelOptional Models & Sizes: F2.5-6M, F3-8M, F4-9M, F4-10MF2.5-6M:Inner Wheel Inner Diameter: Approx. Approx. 2.5mm / 0.1inInner Wheel Outer Diameter: Approx. 6mm / 0.2inOuter Wheel Outer Diameter: Approx. 6mm / 0.2inOuter Wheel Inner Diameter: Approx. 2.7mm / 0.1inF3-8M:Inner Wheel Inner Diameter: Approx. 3mm / 0.1inInner Wheel Outer Diameter: Approx. 3.5mm / 0.1inOuter Wheel Outer Diameter: Approx. 8mm / 0.3inOuter Wheel Inner Diameter: Approx. 3.2mm / 0.1inF4-9M:Inner Wheel Inner Diameter: Approx. 4mm / 0.2inInner Wheel Outer Diameter: Approx. 8.8mm / 0.3inOuter Wheel Outer Diameter: Approx. 9mm / 0.4inOuter Wheel Inner Diameter: Approx. 4.2mm / 0.2inF4-10M:Inner Wheel Inner Diameter: Approx. 4mm / 0.2inInner Wheel Outer Diameter: Approx. 9.8mm / 0.4inOuter Wheel Outer Diameter: Approx. 10mm / 0.4inOuter Wheel Inner Diameter: Approx. 4.2mm / 0.2inPackage List:10 x Thrust BearingNote:1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.cturing, equipment installation and maintenance.1Small frictional resistance, low power consumption, high mechanical efficiency.2This ball thrust bearing set features high precision, high speed, and wear small.3High grade steel ball, quiet and smooth rotation at a high speed.4Small internal clearance and high machining precision.5Suitable for machinery manufacturing, equipment installation and maintenance.