INA AS5578 Thrust Roller Bearing Washer 55mm ID x 78mm OD, 1mm

Description

Product Overview

The INA AS5578 thrust roller bearing washer is a precision‑engineered component designed for demanding power‑transmission applications. Constructed from high‑grade steel, the washer features a ground raceway that minimizes friction and maximizes dimensional stability, allowing it to operate at higher speeds with exceptional running accuracy. Its compact dimensions—55 mm inner diameter, 78 mm outer diameter, and a thin 1 mm width—make it suitable for tight‑space installations while still delivering the load‑carrying capacity required by heavy‑duty machinery.

Manufactured by INA, a reputable brand known for rigorous quality standards, this bearing washer adheres to ISO‑specific tolerances and undergoes thorough testing for hardness, surface finish, and dimensional conformity. The product dimensions listed in the catalog (23 × 16 × 18 inches) refer to packaging size, while the actual washer weighs only 0.63 ounces, underscoring its lightweight yet robust construction. The inclusion of a ground raceway distinguishes it from standard unground raceways, providing smoother operation and reduced wear over the product’s service life.

Usage

This thrust roller bearing washer excels in environments where axial loads are prevalent, such as gearboxes, motor shafts, and conveyor systems. Its design accommodates high‑speed rotation, making it an ideal choice for applications ranging from industrial automation equipment to heavy‑duty agricultural machinery. The washer’s thin profile enables integration into assemblies where space constraints would otherwise limit the use of conventional bearings.

Engineers and maintenance professionals appreciate the ease of installation: the washer can be pressed onto a shaft or fitted into a housing without the need for additional fasteners, reducing assembly time and minimizing the risk of misalignment. Its durability ensures reliable performance even under fluctuating temperature conditions and exposure to lubricants commonly used in industrial settings.

Why Choose Us

Choosing the INA AS5578 thrust roller bearing washer means selecting a component backed by decades of engineering expertise and a commitment to quality assurance. Each washer is produced in a controlled environment, with traceable batch records and compliance with international standards. Our after‑sales support includes technical assistance, replacement parts, and guidance on optimal lubrication practices, ensuring that your equipment remains operational with minimal downtime.

In addition to the inherent material advantages, the ground raceway technology offers a measurable reduction in vibration and noise, contributing to a quieter workplace and extending the lifespan of adjacent components. Our customers benefit from a product that not only meets but often exceeds the performance expectations set by competing brands.

Key Features

• Ground raceway delivers smoother operation and higher speed capability
• Compact 1 mm width fits tight‑space assemblies without sacrificing load capacity
• High‑grade steel construction provides excellent durability and wear resistance
• Designed for axial load applications, ideal for gearboxes and motor shafts
• Comprehensive technical support and after‑sales service for seamless integration

FAQ

What axial load can the INA AS5578 bearing washer handle?

The washer is rated for typical industrial axial loads up to 2,500 N, but exact capacity depends on installation conditions and lubrication. Consult the technical data sheet for detailed load ratings.

Is additional lubrication required?

Yes, applying a suitable high‑temperature grease or oil enhances performance and extends service life. Follow the manufacturer’s lubrication guidelines for optimal results.

Can this washer be used in high‑temperature environments?

The steel alloy used in the INA AS5578 is rated for continuous operation up to 120 °C (248 °F). For temperatures beyond this range, a specialized high‑temperature variant should be considered.

How does the ground raceway improve performance?

Grinding the raceway creates a smoother surface that reduces friction, allowing the bearing to run at higher speeds with less wear and lower vibration, which translates to longer service intervals.

What warranty does INA provide for this bearing washer?

INA offers a standard one‑year limited warranty covering material defects and manufacturing errors, backed by responsive technical support and replacement services.