10pcs Thrust Ball Bearing Miniature High Precision Flat Steel Bearings for Machinery Manufacturing, Equipment Installation and Maintenance (F12-21M 12x21x5mm)(F10-18M 10 * 18 * 5.5mm)

• Heating Installation: Bearings are instruments. For machines and equipment with high precision requirements, heating installation is recommended.
• Good Performance: This thrust bearing is small frictional resistance, low power consumption, high mechanical efficiency.
• Product Introduction: This ball thrust bearing set features high precision, high speed, and wear small.Suitable for machinery manufacturing, equipment installation and maintenance.
• Steel Ball: This is a high grade steel ball, quiet and smooth rotation at a high speed.Small internal clearance and high machining precision.
• Special Notice: When operating machine tool bearings, the sweat on your hands can cause rust. Be careful to use a clean hand, it is best to wear gloves.

Specification: Condition: 100% Brand New Item Type: Thrust Bearing Bearing Material: Bearing Steel Optional Models & Sizes: F9-20M, F10-18M, F12-21M F9-20M: Inner Wheel Inner Diameter: Approx. Approx. 9mm / 0.4in Inner Wheel Outer Diameter: Approx. 19.8mm / 0.78in Outer Wheel Outer Diameter: Approx. 20mm / 0.8in Outer Wheel Inner Diameter: Approx. 9.2mm / 0.36in F10-18M : Inner Wheel Inner Diameter: Approx. 10mm / 0.4in Inner Wheel Outer Diameter: Approx. 17.8mm / 0.7in Outer Wheel Outer Diameter: Approx. 18mm / 0.7in Outer Wheel Inner Diameter: Approx. 10.2mm / 0.4in F12-21M: Inner Wheel Inner Diameter: Approx. 12mm / 0.5in Inner Wheel Outer Diameter: Approx. 21mm / 0.8in Outer Wheel Outer Diameter: Approx. 21mm / 0.8in Outer Wheel Inner Diameter: Approx. 12.2mm / 0.5in Package List: 10 x Thrust Bearing Note: 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.