6801 Single Row Deep Groove Ball Bearing 12x21x5mm Compact Radial Bearing with Oil Lubrication Precision Tolerances and Smooth Rotation for Small Motors Instruments and High Speed Assemblies

6801 Deep Groove Ball Bearing 12mm x 21mm x 5mm
✔️ Single Row Radial Bearing for Compact Precision Use

This is a single-row deep groove ball bearing made for smooth radial rotation in small, space-limited assemblies. It’s commonly used in electric motors, small gearboxes, instruments, and light-duty industrial equipment where clean motion and accuracy matter. Pack size is one bearing.

✅ Pack size: 1 bearing
✅ Bearing type: Single-row deep groove ball bearing
✅ Designed primarily for radial loads with smooth, stable rotation
✅ Bearing steel construction for consistent wear resistance
✅ Oil lubrication suited for higher speed operation
✅ Compact profile for tight housings and lightweight designs
✅ Basic dynamic load rating Cr: 1.43 kN
✅ Basic static load rating Cor: 0.67 kN
✅ Internal clearance range: 0 to 10 um
✅ Inner ring tolerance: 0 to minus 10 um
✅ Outer ring tolerance: 0 to minus 11 um

Dimensions
Inner Diameter 12 mm
Outer Diameter 21 mm
Width 5 mm

Equivalent part numbers
61801
6801
1801S

💡 Why are small deep groove ball bearings used in precision equipment?
Small deep groove ball bearings are used when accuracy, speed, and compact size are all critical.

• Deep raceway design supports smooth radial motion with low friction

• Tight tolerances help maintain shaft alignment and reduce vibration

• Lightweight construction improves efficiency at higher speeds

• Common choice for motors, instruments, and precision assemblies

This bearing is a handy fit when you need clean rotation, compact sizing, and dependable performance in small mechanical systems.