TAS3020/090/130 SCHAEFER compression-expansion ring

SCHAEFER TAS 3020/090/130 Locking Assembly

The SCHAEFER TAS 3020/090/130 is a high-precision mechanical fastener designed to create a rigid, backlash-free frictional connection between a hub and a 90 mm diameter shaft. This system utilizes a double-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 superior concentricity, which is vital for minimizing vibration and run-out in drive systems.

Application

• Mounting Pulleys and Gears: Rapid installation on smooth shafts without the need for stress-inducing keyways.
• Conveyor Drums: Stable mounting of drive pulleys in material handling systems.
• Industrial Gearboxes: Connecting output shafts to functional elements in production machinery.
• Rigid Couplings: Building durable shaft-to-shaft connections with high alignment precision.
• Automation and Robotics: Zero-backlash power transmission in high-dynamic systems.

Technical Specification

• Manufacturer: SCHAEFER (Germany)
• Designation: TAS 3020/090/130
• Main Dimensions: 90 mm (ID / d) × 130 mm (OD / D).
• Type: Self-centering Locking Assembly.
• Material: High-grade heat-treated structural steel.

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

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, protecting bearings from premature failure.
• 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 severe torque shocks.
• Simple Maintenance: Integrated jacking-off threads allow for quick release without damaging the shaft surface.

Why Choose This Product

Opting for the SCHAEFER TAS 3020/090/130 locking assembly is an investment in superior drivetrain reliability. 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.