The SKF 6309 NR Bearing is a deep groove ball bearing with a snap ring, designed to meet the rigorous demands of industrial applications. Manufactured by SKF, a leader in bearing production, this bearing features a bore diameter of 45 mm, an outer diameter of 106.5 mm, and a width of 25 mm. Known for their versatility, deep groove ball bearings like the 6309 NR are commonly used in various machinery where they support both radial and axial loads.
Technical specifications
| Specification | Value |
| Bore Diameter (d) | 45 mm |
| Outer Diameter (D) | 106.5 mm |
| Width (B) | 25 mm |
| Basic Dynamic Load Rating (C) | 59.2 kN |
| Basic Static Load Rating (C0) | 35 kN |
| Limiting Speed | 7,500 rpm |
| Reference Speed | 6,300 rpm |
| Cage Type | Pressed Steel |
| Shielding / Sealing | Open |
| Ring Material | Chrome Steel 100Cr6 |
| Precision Class | P0 / ABEC-1 |
| Internal Clearance | CN |
Technical advantages
The SKF 6309 NR Bearing offers several technical advantages that make it suitable for demanding applications:
- Supports radial and axial loads, accommodating both types of stress in a single component.
- Operates with a reference speed of 6,300 rpm, suitable for high-speed applications.
- Constructed from heat-treated 100Cr6 chrome steel, ensuring rolling-contact fatigue life exceeds 107 cycles.
- Standard CN radial clearance, making it ideal for assemblies without preload requirements.
- Comes with a snap ring, facilitating easy mounting and securing within housings.
Typical applications
The SKF 6309 NR Bearing is versatile and used across various industries, including:
- Electric motors and generators, where high-speed rotation and load support are critical.
- Conveyor systems and material handling equipment, requiring durable bearings for continuous operation.
- Pumps and compressors, where reliability in high-stress environments is essential.
- Industrial gearboxes, providing smooth motion transfer and load handling.
- Agricultural machinery, such as harvesters and tractors, demanding robust performance in challenging conditions.
Availability and ordering
As a specialized B2B supplier, Eurobearing.eu offers the SKF 6309 NR Bearing (SKU: 6309NR-SKF) with fast availability. Businesses can easily add this item to their cart or request a quotation for bulk orders, ensuring that they have the components needed for their industrial applications.

