SKF Launches Compact 6904 Thinwalled Bearings for Versatile Use

In today's rapidly evolving technological landscape, the demand for smaller, lighter, and more efficient solutions has never been greater. From weight optimization in aerospace to enhanced flexibility in robotics, engineers across industries are constantly pushing boundaries to achieve peak performance. The SKF 6904 thin-section bearing has emerged as a transformative solution, offering exceptional performance in remarkably compact dimensions.

The SKF 6904 represents a breakthrough in bearing technology, specifically designed for applications where space and weight are at a premium. With its 20mm bore diameter, 37mm outer diameter, and mere 9mm width, this deep groove ball bearing delivers performance that belies its compact size.

What sets the SKF 6904 apart is its ability to combine radial and axial load capacity within this ultra-slim profile. This dual capability makes it exceptionally versatile for applications ranging from electric motors and gearboxes to precision instruments where traditional bearings would be too bulky.

The SKF 6904 offers several distinct advantages that make it stand out in demanding applications:

• Space Optimization: The thin-section design provides maximum performance in minimal space, enabling more compact equipment designs and greater engineering flexibility.
• Dual Load Capacity: Engineered to handle both radial and axial loads, making it suitable for diverse applications where traditional bearings might require multiple components.
• Enhanced Durability: Features a steel cage and open design that ensures optimal lubrication and extended service life, even in demanding operating conditions.
• High-Speed Performance: With reference speeds up to 43,000 rpm and limiting speeds of 26,000 rpm, it excels in dynamic applications where friction reduction is critical.

The bearing's technical parameters demonstrate its engineering precision:

• Bore Diameter: 20mm
• Outer Diameter: 37mm
• Width: 9mm
• Dynamic Load Rating: 6.37 kN
• Static Load Rating: 3.65 kN
• Fatigue Load Limit: 0.156 kN

The SKF 6904 finds application across multiple industries where space and weight savings are paramount:

Used in aircraft landing gear, control systems, and engine components where every gram of weight reduction contributes to improved fuel efficiency and performance.

Ideal for robotic joints and actuators where compact dimensions enable greater range of motion and design flexibility.

Critical for CT scanners, MRI machines, and surgical robots where precision and reliability are non-negotiable.

Deployed in conveyor systems, packaging machinery, and machine tools to enhance operational efficiency and reduce maintenance requirements.

Implemented in engines, transmissions, and steering systems to support vehicle lightweighting initiatives and improve energy efficiency.

As a product of SKF, the 6904 bearing benefits from the company's renowned manufacturing standards:

• Premium bearing steel construction for superior wear resistance
• Precision manufacturing processes ensuring dimensional accuracy
• Rigorous quality control throughout production

The SKF 6904 thin-section bearing represents more than just a mechanical component—it's an enabler of innovation across multiple industries. By overcoming traditional space constraints without compromising performance, it provides engineers with new possibilities in product design and functionality.