SKF Bearing 7211 ACD HCP4A Ceramic Hybrid Angular Contact Ball Bearing 55 mm Bore Built For Speed High Precision Non Metallic Cage For Grease Lubrication Up To 15000 RPM And Oil Air Lubrication Up To 24000 RPM
✔️ Single bearing, ceramic hybrid, 55 mm bore, 21 mm width
These ceramic hybrid angular contact ball bearings are designed for high-speed, high-precision motion in machinery. They use ceramic balls with a non-metallic cage for lightweight, low-friction operation in spindles, robotics, and precision guide systems.
✅ Bore diameter: 55 mm (2.17 in)
✅ Outer diameter: 98.7 mm (3.89 in)
✅ Width: 21 mm (0.83 in)
✅ Contact angle: 25°
✅ Speed rating: grease up to 15000 r/min; oil-air up to 24000 r/min
✅ Material: Hybrid ceramic balls; Cage: Non-metallic
✅ Design: High-capacity D; Sealing: Without
✅ Dynamic load: 52.7 kN; Static load: 40.5 kN
💡 What is a ceramic hybrid angular contact bearing used for in high-speed machinery?
In short, it’s a handy option for precision equipment that runs at high speeds with low friction and long life.
- high-speed spindle bearings for CNC machines and robotics - ceramic balls reduce friction and wear for longer life - non-metallic cage lowers heat buildup in tight spaces - works with either grease or oil-air lubrication setups