TAS3073/66_1.4571 SCHAEFER compression-expansion ring

SCHAEFER TAS 3073/66 Stainless Steel Locking Assembly (1.4571)

The SCHAEFER TAS 3073/66_1.4571 is a high-grade stainless mechanical fastener designed for rigid, backlash-free frictional connections on 66 mm shafts. Manufactured from 1.4571 (AISI 316Ti) titanium-stabilized steel, it offers exceptional resistance to intergranular corrosion, acids, and salt water. The keyless design eliminates shaft stress concentrations, preventing fatigue cracks and allowing for infinite angular positioning of drive components in highly corrosive and sterile environments.

Application

• Food & Beverage Processing: Drive systems in production lines subject to aggressive chemical washdown and direct food contact.
• Chemical & Pharmaceutical Industry: Securing agitators, impellers, and pumps in chemically aggressive media.
• Water & Wastewater Treatment: Drive components exposed to high humidity and corrosive vapors.
• Marine & Offshore Engineering: Transmission mechanisms operating in high-salinity maritime conditions.
• Packaging Machinery: Zero-backlash shaft connections in equipment requiring sterility and high precision.

Technical Specification

• Manufacturer: SCHAEFER (Germany)
• Designation: TAS 3073/66
• Material: 1.4571 (Acid-resistant stainless steel).
• Shaft Diameter (d): 66 mm
• Mechanism: Keyless frictional locking, self-centering.

Note: When installing stainless steel 1.4571 assemblies, the use of high-quality anti-seize lubricants is strongly recommended to prevent thread galling and ensure uniform clamping pressure.

Features and Benefits

• Superior Material Resilience: 1.4571 steel provides protection where standard carbon steel would suffer rapid failure.
• Shaft Integrity: Keyless mounting increases shaft fatigue strength and allows for heavy dynamic load transmission.
• High Concentricity: The self-centering geometry minimizes radial run-out, protecting expensive bearings and seals.
• Hygienic Design: Absence of keyways eliminates crevices where contaminants or bacteria can accumulate.
• Maintenance Reliability: The non-corrosive nature of the material prevents component seizure, ensuring easy disassembly even after years of service.

Why Choose This Product

Choosing the SCHAEFER TAS 3073/66 in stainless steel ensures operational safety in the most demanding industrial sectors. In corrosive settings, standard locking devices often fuse to the shaft, making non-destructive removal impossible. This stainless version protects your machine's primary components and ensures a predictable maintenance process, significantly lowering the Total Cost of Ownership (TCO).