SKF 51104 Single Direction Thrust Bearing, 3 Piece, Grooved Race, 90° Contact Angle, ABEC 1 Precision, Open, Steel Cage, 20mm Bore, 35mm OD, 10mm Width, 4680lbf Static Load Capacity, 2860lbf Dynamic Load Capacity

Description

Product Overview

The SKF 51104 single direction thrust ball bearing is a precision‑engineered component designed to handle substantial axial loads in one direction. Featuring a 20 mm bore, a 35 mm outer diameter, and a 10 mm width, this bearing provides a compact yet robust solution for a wide range of industrial applications. Its open design allows for easy lubrication, while the grooved raceways enable higher rotational speeds and increased thrust‑bearing capacity compared with flat‑washer alternatives. Constructed from through‑hardened chromium steel, the bearing offers exceptional resistance to deformation and wear, ensuring reliable performance even under continuous heavy‑load conditions. The steel cage, pressed from sheet steel, evenly spaces the balls, reducing friction, vibration, and noise, which contributes to smoother operation and longer service life. With a static load capacity of 4,680 lbf and a dynamic load capacity of 2,860 lbf, the SKF 51104 meets demanding specifications for industrial power transmission systems.

Usage

This thrust bearing is ideally suited for machinery that experiences high axial forces, such as gearboxes, centrifugal pumps, conveyor rollers, and heavy‑duty motor shafts. Its single‑direction design makes it perfect for applications where load is consistently applied in one direction, such as vertical shafts in elevators, wind turbine gearboxes, and industrial presses. The open cage design simplifies on‑site lubrication, allowing maintenance personnel to apply grease or oil directly to the bearing without disassembly. Because the bearing can operate at elevated speeds, it is frequently selected for high‑performance equipment where both load‑bearing capacity and rotational velocity are critical. The robust construction also makes it a reliable choice for harsh environments, including factories with high temperatures, dust, or exposure to chemicals.

Why Choose Us

Choosing the SKF 51104 means selecting a product backed by decades of engineering expertise and a global reputation for quality. SKF’s rigorous testing procedures guarantee that each bearing meets ABEC 1 precision standards, delivering consistent dimensional accuracy and performance. The bearing’s through‑hardened chromium steel material provides superior durability, reducing the risk of premature failure and minimizing downtime for your operation. Additionally, SKF offers comprehensive technical support and a responsive after‑sales service team ready to assist with installation guidance, troubleshooting, and replacement part sourcing. Our commitment to sustainability ensures that the manufacturing process adheres to environmentally responsible practices, giving you confidence that your purchase aligns with corporate responsibility goals.

Key Features

• Single‑direction design efficiently supports heavy axial loads in one direction, simplifying system design.
• Open steel cage allows easy lubrication, reducing maintenance time and cost.
• Grooved raceways enable higher rotational speeds and greater thrust capacity than flat‑washer bearings.
• Through‑hardened chromium steel construction resists wear and deformation for long‑term reliability.
• SKF technical support and warranty provide peace of mind and quick assistance when needed.

FAQ

What does “single direction” mean for this thrust bearing?

It means the bearing is designed to carry axial loads effectively in one direction only. This is ideal for applications where the load direction is constant, such as vertical shafts that experience gravity‑induced forces.

Can this bearing be used in high‑speed applications?

Yes. The grooved raceways and precision‑ground balls allow the SKF 51104 to operate at higher RPMs than flat‑washer thrust bearings while maintaining stability and low friction.

How should I lubricate the open bearing?

Apply a high‑quality grease or oil directly to the bearing’s inner and outer rings. Because the cage is open, lubrication can be performed without disassembly, ensuring consistent performance.

Is there a warranty or support program for this bearing?

SKF provides a standard warranty covering material and workmanship defects, and our technical support team is available to help with installation, troubleshooting, and replacement part inquiries.

What are the recommended operating temperature limits?

The SKF 51104 is rated for typical industrial temperature ranges up to 120 °C (248 °F). For extreme temperatures, consult SKF’s technical documentation to select appropriate lubrication and bearing variants.