SKF 71910 CD P4ADGA Pro Grade Super Precision Angular Contact Ball Bearing 50 MM Bore High Capacity Design D Non Metal Cage No Lubricant Matched Bearing for Precision CNC Machinery

SKF 71910 CD P4ADGA Angular Bearing, 50 mm bore
✔️ 50 mm bore, 2-row high-capacity D design, 2-bearings matched

This pro-grade angular contact ball bearing set is designed for precision CNC machinery and high-accuracy spindles. It features a two-row, high-capacity D design with a non-metallic cage and requires no lubricant, making it suitable for cleanroom environments and low-maintenance setups. Matched in a 2-bearings set with extra-light preload to control preload and runout in demanding machine tools.

✅ Bore: 50 mm (2.0 in); O.D.: 72 mm (2.83 in); Width: 24 mm (0.94 in)
✅ Basic dynamic load rating: 22.1 kN; Basic static load rating: 20.8 kN
✅ Material: bearing steel; Cage: non-metallic; Tolerance: P4A
✅ Contact angle: 15°; Design: high-capacity D; Lubricant: none; Sealing: none
✅ Matched arrangement: universal back-to-back, face-to-face, tandem; Bearings in matched set: 2

💡 What is a high-precision angular contact bearing used for in CNC machines?

In plain terms, this handy bearing keeps precision spindles running true under load and speed.

• High-precision angular contact bearings handle radial and axial loads in one direction at the same time, providing accurate rotation and load sharing.
• Common uses include CNC mills, lathes, and precision grinding equipment where runout and stiffness matter.
• Back-to-back, face-to-face, or tandem universal matching lets you tailor preload and stiffness for your setup.
• Proper selection of preload and material improves service life and reduces maintenance in clean environments.