KOYO 6221 C3 Single Row Ball Bearing 105mm Bore Light Series Shielded 6221ZZC3 Loose Clearance Ideal For Precision Machinery And Robotic Applications

KOYO 6221 C3 single row ball bearing, 105 mm bore
✔️ Single unit, shielded ZZ, C3 clearance, 105 mm bore

KOYO 6221ZZC3 is a light-series shielded single-row ball bearing with a 105 mm bore and 190 mm outer diameter. It features C3 loose clearance to accommodate shaft expansion and load variances, making it a solid choice for precision machinery and robotics. This bearing is well-suited for automated systems, CNC machines, and robotic arms where reliable, accurate motion is essential.

✅ Bore: 105 mm (4.134 in)
✅ Outer diameter: 190 mm (7.48 in)
✅ Type: Single Row Ball Bearing, Deep Groove
✅ Internal clearance: C3 loose
✅ Precision class: ABEC 1 / ISO P0
✅ Shield: ZZ shielded (light shield)
✅ Pack: Single bearing

💡 What is a sealed ball bearing used for in precision machinery? This handy component helps control motion and reduce wear in automation and robotics.

- Supports rotational motion with low friction - Shields protect internals from contamination for longer life - Fits standard 105 mm bore and works with common drive shafts