AS3552 ISB washer

ISB AS3552 Thrust Washer (Thin Raceway)

The ISB AS3552 is a high-precision thrust washer manufactured from hardened, high-grade bearing steel. The AS series rings are known for their minimal thickness, enabling the design of ultra-slim bearing arrangements. Ground and polished on both sides, they serve as professional raceways for needle roller or cylindrical roller thrust assemblies (such as the AXK type). They are the perfect solution when surrounding machine components are not hardened and cannot function as a direct track for rolling elements.

Application

• Planetary Gearsets: Compact support for gears under high axial thrust.
• Machine Tools: Providing a precise rotation plane in adjustment and positioning mechanisms.
• Pumps and Valves: Durable performance under high longitudinal pressure.
• Automotive: Used in clutches, transmissions, and steering systems.
• Industrial Automation: Precise axial guidance in actuators and power drives.

Technical Specification

• Manufacturer: ISB (Italy)
• Designation: AS3552
• Part Type: Thin-walled thrust washer (raceway).
• Material: Hardened chrome steel (high surface hardness).
• Compatibility: AXK3552 needle thrust assemblies.

Note: Standard dimensions for the AS3552 are 35 mm (Bore) × 52 mm (OD) × 1 mm (Thickness).

Features and Benefits

• Ultra-Slim Profile: A thickness of only 1 mm allows for significant space savings in mechanical design.
• High Wear Resistance: Hardened surface prevents pitting even under extreme point loads from rollers.
• Double-sided Precision: Both surfaces are finished with equal accuracy, simplifying the installation process.
• Component Protection: Absorbs friction from rolling elements, preventing wear on expensive, non-hardened housings.
• ISB Quality Standards: European manufacturing ensures perfect parallelism and a superior surface finish.

Why Choose This Product

The ISB AS3552 thrust washer is the most efficient way to establish a professional-grade raceway for needle thrust bearings in tight spaces. It eliminates the need for expensive hardening of shafts or housings. By selecting ISB, you invest in a component that minimizes heat generation and significantly extends the operational lifespan of your mechanical systems.