TAS130/090/130 SCHAEFER compression-expansion ring

SCHAEFER TAS 130/090/130 Locking Assembly

The SCHAEFER TAS 130/090/130 is a high-precision mechanical fastener designed to create a rigid, backlash-free frictional connection between a hub and a 90 mm diameter shaft. The tapered mechanism generates uniform radial pressure upon tightening the mounting screws, enabling the safe transmission of high dynamic loads. With its self-centering function, the assembly ensures high concentricity, significantly reducing vibration and run-out in drive systems.

Application

• Large Pulley and Gear Mounting: Fast installation on smooth shafts without the need for expensive keyway milling.
• Conveyor Drums: Stable seating of drive pulleys in heavy-duty material handling systems.
• Industrial Automation: Backlash-free power transmission in systems requiring high precision and frequent reversals.
• Gearboxes and Gear Motors: Connecting output shafts to functional machine elements.
• Drive Retrofitting: Enabling the repair of connections on shafts where traditional keyways have failed or worn out.

Technical Specification

• Manufacturer: SCHAEFER (Germany)
• Designation: TAS 130/090/130
• Main Dimensions: 90 mm (ID / d) × 130 mm (OD / D).
• Type: Internal/External Locking Assembly.
• Material: High-grade heat-treated structural steel.

Installation Tip: To achieve rated load capacity, screws must be tightened gradually in a crosswise pattern using a torque wrench until the specific Nm torque recommended by SCHAEFER is reached.

Features and Benefits

• Elimination of Notch Effect: Keyless mounting increases shaft rigidity and fatigue resistance.
• High Torsional Stiffness: Frictional contact across the entire surface ensures zero rotational play.
• Infinite Angular Adjustment: Allows for perfect positioning of the hub relative to the shaft before final locking.
• Shaft Protection: Prevention of micro-movements avoids fretting corrosion and surface wear.
• Easy Maintenance: Integrated jacking-off threads facilitate quick release without damaging machine components.

Why Choose This Product

Opting for the SCHAEFER TAS 130/090/130 locking assembly is an investment in the superior performance of your drive train. German engineering precision ensures the connection withstands the most demanding industrial cycles. By eliminating mechanical play and stress concentrations, this product significantly lowers maintenance costs, protecting machine shafts from premature wear and expensive failures.