SKF 6311 ZNR Deep Groove Ball Bearing With Snap Ring Outer Ring Locating Feature 55 Millimeter Bore Cylindrical Normal Clearance Bearing Steel No Lubricant 8000 RPM Max Speed

SKF 6311-ZNR Shielded Ball Bearing, 55mm Bore - Single
✔️ 55 mm bore (2.17 in), 120 mm OD (4.72 in), CN clearance, shield on one side

This SKF 6311-ZNR is a single-row shielded ball bearing designed for general purpose use in machinery, conveyors, and equipment where reliable radial support and controlled clearance are important. It features a non-contact shield on one side and outer ring snap-ring locating for easy housing fit.

✅ Basic dynamic load rating 74.1 kN
✅ Basic static load rating 45 kN
✅ Bore diameter 55 mm (2.17 in); outer diameter 120 mm (4.72 in); width 29 mm (1.14 in)
✅ Radial internal clearance CN
✅ Sealing type non-contact; shield on one side
✅ Speed rating 8000 r/min; reference speed 12000 r/min
✅ Snap ring located outer ring
✅ SKF Explorer performance class; normal tolerance

💡 A cosa serve un cuscinetto sealed nei macchinari?

Handy for use in machinery like conveyors and gear drives where a robust shaft support is needed.

- supports rotating shafts in belts, conveyors, and gear drives - reduces friction with rolling elements and proper housing alignment - fits in standard housings for quick maintenance