6311-Z SKF Bearing Deep Groove Shielded 55 mm Bore Heavy Duty Built Tough Pro Grade 74.1 kN Dynamic Load Rating 45 kN Static Load Rating Bearing Steel With Sheet Metal Cage Normal Clearance For Industrial Machinery

6311-Z SKF Deep Groove Shielded Bearing for Heavy Duty
✔️ 55 mm bore, CN clearance, shielded one side, single-pack

SKF 6311-Z Deep Groove Shielded Bearing is a rugged, single-row unit designed for industrial machinery. It’s a common fit in conveyors, presses, and machine tools where solid radial support is needed. The shield on one side guards the rolling elements from dust and debris while keeping maintenance simple.

✅ Bore diameter: 55 mm (2.17 in)
✅ Dynamic load rating: 74.1 kN
✅ Static load rating: 45 kN
✅ Seal: shield on one side, non-contact
✅ Cage: sheet metal; Bearing steel body

Dimension	Metric	Inches
Bore diameter	55 mm	2.17 in
Outside diameter	120 mm	4.72 in
Width	29 mm	1.14 in

💡 What is a pillow block bearing used for in industrial machinery and large equipment?

- Handy for supporting rotating shafts in conveyors, CNC machines, and automation gear - Keeps shafts properly aligned under heavy radial loads to prevent deflection - Easy to install with standardized bore and clearance groups for common setups