TAS3073/108_1.4571 SCHAEFER compression-expansion ring

SCHAEFER TAS 3073/108 Stainless Steel Locking Assembly (1.4571)

The SCHAEFER TAS 3073/108_1.4571 is a premium-grade mechanical fastener designed for creating rigid, backlash-free frictional connections in highly corrosive environments. Manufactured from 1.4571 stainless steel (AISI 316Ti), titanium-stabilized for superior resistance to intergranular corrosion, acids, and seawater. This locking assembly allows for secure mounting on 108 mm shafts without keyways, preserving shaft integrity and preventing corrosion hotspots in mechanical crevices.

Application

• Food & Beverage Industry: Fastening drive components in machinery subject to washdown and cleaning agents.
• Chemical & Pharmaceutical Plants: Installations operating in the presence of aggressive vapors and corrosive substances.
• Water & Wastewater Treatment: Drives for mixers and pumps in treatment facilities.
• Marine & Offshore: Equipment mounting on ships and oil rigs exposed to high salinity.
• Cleanroom Systems: Mechanisms requiring sterility and zero rust emission.

Technical Specification

• Manufacturer: SCHAEFER (Germany)
• Designation: TAS 3073/108
• Material: 1.4571 (X6CrNiMoTi17-12-2) – acid-resistant stainless steel.
• Shaft Diameter (d): 108 mm
• Mechanism: Keyless frictional connection, self-centering.

Note: During installation of stainless steel versions, it is critical to use specialized anti-seize pastes to prevent thread galling (cold welding).

Features and Benefits

• Maximum Corrosion Resistance: 1.4571 steel ensures connection longevity even in extreme humidity.
• Hygienic Design: The absence of keyways eliminates areas where dirt and bacteria could accumulate.
• High Torsional Stiffness: Torque is transmitted across the entire contact surface, preventing shaft wear.
• Precision Centering: The ring design minimizes radial run-out of the mounted components.
• Ease of Maintenance: Even after years in harsh conditions, the stainless material allows for trouble-free disassembly.

Why Choose This Product

Choosing the SCHAEFER TAS 3073/108 in 1.4571 steel is an investment in production continuity for the most demanding industrial sectors. In corrosive environments, standard steel solutions often become permanent fixtures, requiring destructive removal methods during failure. This stainless SCHAEFER version protects expensive machine shafts and ensures a fully manageable maintenance process, significantly reducing the Total Cost of Ownership (TCO).