TAS3015/240/305 SCHAEFER compression-expansion ring

SCHAEFER TAS 3015/240/305 Locking Assembly

The SCHAEFER TAS 3015/240/305 is a high-performance friction locking device designed to create rigid, backlash-free connections between shafts and hubs. This specific model, with an internal diameter of 240 mm, belongs to a series engineered for extreme dynamic loads. By utilizing a tapered geometry, tightening the integrated screws generates massive radial forces that secure components without the need for keyways. This eliminates stress concentrations, significantly increasing the shaft's fatigue life.

Application

• Heavy-Duty Drive Drums: Securing pulleys in high-capacity conveyor systems used in mining and power plants.
• Large Gears and Pulleys: Transmitting immense torque in crushers, ball mills, and shredders.
• Rigid Couplings: Connecting large-diameter transmission shaft sections.
• Marine and Power Industry: Installation of drive components on main turbine and generator shafts.
• Drive Retrofitting: Repairing connections on shafts where traditional keyways have failed or worn out.

Technical Specification

• Manufacturer: SCHAEFER (Germany)
• Designation: TAS 3015/240/305
• Dimensions: 240 mm (ID / d) × 305 mm (OD / D).
• Type: Internal/External Locking Assembly.
• Design: Self-centering, high-torque capacity.

Note: During installation of the TAS 3015, it is mandatory to use a torque wrench and follow a "crosswise" tightening sequence according to the manufacturer's Nm specifications.

Features and Benefits

• Extreme Load Capacity: The 3015 series is specifically designed to transmit the highest torques in the friction-locking category.
• Shaft Integrity: Keyless mounting increases the effective shaft cross-section, allowing for higher power transmission at the same diameter.
• Precision Centering: The assembly ensures perfect axial alignment of the mounted component, minimizing run-out and vibration.
• Backlash-Free Operation: The connection is fully resistant to reversing loads and mechanical shocks.
• Easy Adjustment: Allows for infinite angular positioning of the hub relative to the shaft before final locking.

Why Choose This Product

Opting for the SCHAEFER TAS 3015/240/305 locking assembly is an investment in maximum technical safety. In large-scale applications, the cost of shaft failure far exceeds the price of the locking element. Utilizing German-engineered SCHAEFER technology ensures the connection remains stable throughout years of operation, while providing easy, non-destructive disassembly during maintenance.