TAS3020/035/060 SCHAEFER compression-expansion ring

SCHAEFER TAS 3020/035/060 Locking Assembly

The SCHAEFER TAS 3020/035/060 is a high-precision mechanical fastener designed to create a rigid, backlash-free frictional connection between a hub and a 35 mm diameter shaft. This system utilizes a tapered mechanism: tightening the integrated mounting screws generates radial pressure that securely clamps the ring onto the shaft and expands it into the hub. With its self-centering function, the TAS 3020 model ensures high concentricity of the mounted components, which is vital for vibration reduction in high-speed systems.

Application

• Pulley and Gear Mounting: Rapid installation on smooth shafts without the need for keyway milling.
• Automation and Robotics: Zero-backlash power transmission in systems requiring high dynamics and positioning accuracy.
• Industrial Gearboxes: Connecting output shafts to functional elements of production machinery.
• Pumps and Fans: Stable mounting of impellers on drive shafts.
• Drive Retrofitting: Enabling the repair of connections on shafts with damaged or worn-out keyways.

Technical Specification

• Manufacturer: SCHAEFER (Germany)
• Designation: TAS 3020/035/060
• Dimensions: 35 mm (ID / d) × 60 mm (OD / D).
• Type: Self-centering Locking Assembly.
• Material: High-strength heat-treated steel.

Installation Tip: To ensure full load capacity, screws must be tightened gradually and evenly with a torque wrench, following a crosswise pattern until the Nm torque specified by SCHAEFER is reached.

Features and Benefits

• Elimination of Notch Effect: Keyless mounting increases shaft rigidity and fatigue resistance.
• High Rotational Accuracy: The self-centering geometry minimizes radial run-out.
• Infinite Angular Adjustment: Allows for perfect positioning of the hub relative to the shaft before final locking.
• Dynamic Load Resilience: Frictional connection excels under sudden reversals and torque shocks.
• Simple Disassembly: Integrated jacking-off threads allow for quick release without damaging the shaft surface.

Why Choose This Product

Opting for the SCHAEFER TAS 3020/035/060 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 shafts from premature wear and failures common in traditional keyed joints.