SKF Bearing QJ 311 N2MA C3 Heavy Duty Precision Ball Bearing 55 Mm Bore With Machined Metal Cage 137 kN Basic Dynamic Load 118 kN Basic Static Load And Ideal For Industrial Machinery And OEM Equipment

SKF QJ 311 N2MA C3 55mm Bore Ball Bearing, Single Pack
✔️ 55 mm bore, machined metal cage, C3 clearance, 137 kN dyn

Ideal for heavy-duty industrial machinery and OEM setups, this SKF QJ 311 N2MA C3 bearing combines precision ball bearing performance with a machined metal cage for robust alignment under high loads. It's a single-row, four-point contact unit designed to handle demanding applications.

✅ Axial Internal Clearance: C3
✅ Basic Dynamic Load Rating: 137 kN
✅ Basic Static Load Rating: 118 kN
✅ Bearing Material: Bearing steel
✅ Bore Diameter: 55 mm (2.17 in)
✅ Cage: Machined metal
✅ Contact Angle: 35°
✅ Contact Type: Four-point contact
✅ Limiting Speed: 10000 r/min
✅ Lubricant: None
✅ Ring Type: Two-piece inner ring and one-piece outer ring
✅ Sealing: Without
✅ SKF Performance Class: SKF Explorer
✅ Width: 29 mm (1.14 in)
✅ O.D.: 120 mm (4.71 in)
✅ Pack Height: 126 mm (4.96 in)
✅ Pack Length: 124 mm (4.88 in)
✅ Pack Width: 33 mm (1.30 in)
✅ Relubrication Feature: Without
✅ Matched Arrangement: No

💡 What is a pillow block bearing used for? This handy device supports rotating shafts in machines, keeps them aligned, and handles radial and axial loads in conveyors, pumps, and OEM equipment. It offers a reliable mounting footprint for compact setups and long life in tough environments.
- Where to install pillow block bearings in a system
- How they handle axial and radial loads in practice
- Why machined metal cages matter for durability