The NK 40/30 from SKF is a needle roller bearing without inner ring, designed for applications where the shaft is already hardened and ground to serve as the raceway. This bearing offers high radial load capacity combined with a compact size, making it ideal for use in space-constrained, high-performance environments.
Its robust design, with high-precision cylindrical rollers and an optimized cage, ensures smooth operation, low friction, and long service life, even in harsh industrial conditions.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | NK 40/30 |
| Brand | SKF |
| Type | Needle roller bearing without inner ring |
| Inner Diameter (d) | 40 mm |
| Outer Diameter (D) | 50 mm |
| Width (B) | 30 mm |
| Material | Hardened steel |
| Rolling Element Type | Cylindrical needle rollers |
| Lubrication | Grease or oil |
| Speed Limit | Medium (depending on load and lubrication) |
| Radial Load Capacity | Very high |
Key Features
✔ High radial load capacity
✔ Compact, space-saving design
✔ No inner ring → Shaft serves as the raceway
✔ Durable, precise roller guidance cage
✔ Ideal for demanding industrial environments
Typical Applications
🔹 Gear reducers and speed changers
🔹 High-efficiency electric motors and pumps
🔹 Rotating shafts and mechanical transmissions
🔹 Agricultural machinery, earth-moving equipment, and industrial vehicles
🔹 Automated systems and industrial tools
📦 Choose the SKF NK 40/30 bearing for superior performance, long service life, and reliability even in the toughest conditions! ⚙️
