5309 2RS Koyo Angular Contact Ball Bearing Medium Series Delivers High Rigidity And Smooth Low Friction Operation For Precision Machinery Enabling Reliable Loads And Long Service Life

5309 2RS KOYO Angular Contact Ball Bearing - Single Unit ✔️ Bore 39.7 mm; ID 45; OD 100; Cr 86.1 kN; Cu 2.65; Wt 1.42 kg

The Koyo bearing 5309 2RS is a sealed angular contact ball bearing from KOYO, designed for high speed duty in compact assemblies. This single unit is ideal for use in spindles, motors, and precision gearboxes where reliable radial and axial support is critical.

✅ Bore 39.7 mm; ID 45 mm
✅ OD 100 mm; r min 1.5 mm
✅ Cr 86.1 kN; C0r 51.4 kN
✅ Cu 2.65 kN; Mass 1.42 kg
✅ Limiting speeds grease 4100 min-1; oil 5500 min-1

💡 What is an angular contact ball bearing used for in high speed machinery? In practical terms, this bearing type supports both radial and axial loads with precision in compact setups. - Used in CNC spindles and high speed motors - Great for gearboxes and conveyors with tight tolerances - Helps minimize friction and extend bearing life - Lubrication options include grease and oil