Clamping Star-Type Elastic Coupling

Clamping Star-Type Elastic Coupling – Precision Power Transmission with Secure Clamping Connection

Product Overview

The Clamping Star-Type Elastic Coupling is an advanced coupling solution combining the vibration-damping benefits of star-shaped elastic elements with the convenience and security of a clamping shaft connection. Designed for precision power transmission in servo systems, CNC equipment, and automation machinery, this coupling ensures zero-backlash performance while eliminating the need for keyways or set screws.

Key Features & Technical Advantages

1. Patented Clamping Mechanism

Tool-free installation with high-grip clamping bush system (DIN 6885 standard)

360° uniform clamping force prevents shaft slippage even under variable loads

No keyway required – reduces shaft preparation costs and improves concentricity

Bore tolerance: H7 (standard), customizable to h6 or other precision grades

2. High-Performance Star Elastic Element

Multi-lobe polyurethane spider (Shore 92A/95A) with optimized elasticity

Torsional stiffness: 15-200 Nm/rad (selectable for application requirements)

Vibration absorption: Reduces peak vibration amplitudes by up to 40%

Temperature range: -40°C to +120°C (special materials available for extreme conditions)

3. Precision Engineering

Dynamic balance grade: G2.5 (standard), G1.0 available for high-speed applications

Zero-backlash design: <0.05° angular transmission error

IP54 protection as standard (IP67 optional)

Fail-safe construction: Mechanical stopper prevents complete separation

Technical Specifications

Torque range: 5Nm ~ 800Nm

Max speed: 10,000 rpm (size dependent)

Bore diameters: 3mm ~ 60mm

Permissible misalignment:

Angular: ±1.5°

Parallel: 0.3mm

Axial: ±1mm

Unique Selling Points

✓ 5-minute installation – No special tools or disassembly required
✓ Maintenance-free – No lubrication needed, spider replacement interval >30,000 hours
✓ Material options:

Anodized aluminum alloy (standard)

Stainless steel (AISI 304/316) for corrosive environments

Black oxide steel for high-torque applications

✓ Custom configurations:

Torsionally stiff versions for positioning systems

Electrically insulating variants

ATEX-compliant models for explosive atmospheres

Recommended Applications

Industrial robots and automated guided vehicles (AGVs)

Packaging machines requiring quick shaft changes

Medical equipment demanding vibration-free operation

Renewable energy systems (solar tracker mechanisms)

Precision machine tools with frequent tooling changes

For engineers seeking a maintenance-free, high-precision coupling that combines the benefits of elastic damping with the reliability of clamping connections, this star-type coupling represents the optimal solution.