$ 27.60
SICK KUP-0808-S shaft coupling connects 8 mm shafts, compensates misalignment, supports high-speed rotation, and protects encoders in industrial motion systems.
SICK KUP-0808-S shaft coupling is a compact bar-type coupling engineered to connect two 8 mm shafts while minimizing the negative effects of shaft misalignment. It addresses common issues such as vibration, uneven load transfer, and reduced measurement accuracy in encoder and drive systems. Designed for high-speed operation, this coupling supports stable torque transmission while protecting connected components from mechanical stress. Its compact form factor makes it suitable for space-limited machinery where precision and reliability are essential for continuous industrial operation.
The SICK KUP-0808-S shaft coupling is designed to balance flexibility and rigidity, allowing it to absorb radial, axial, and angular deviations between connected shafts. This capability helps reduce stress on bearings and encoders, extending service life and maintaining consistent motion feedback. In practical machine installations, it improves system stability by dampening vibration and preventing backlash-related inaccuracies. The combination of durable materials and precise construction supports reliable performance in automation, packaging, and motion-control applications where consistent rotational accuracy is critical.
SICK KUP-0808-S is selected when precision, reliability, and mechanical protection must coexist in compact drive systems. It is engineered to maintain smooth torque transmission while tolerating unavoidable installation deviations. By combining controlled flexibility with high torsional rigidity, it safeguards sensitive components such as encoders and servo motors. Its compact length supports dense machine layouts, while high-speed capability ensures consistent performance in fast-moving automation lines. For engineers who need stable motion feedback without redesigning shafts or mounts, this coupling offers a dependable, low-risk solution.
Misalignment between rotating shafts is a silent source of vibration, measurement drift, and premature component failure. SICK KUP-0808-S directly addresses this issue by absorbing radial, axial, and angular offsets without introducing backlash. This prevents excessive loads from being transferred to bearings and encoder shafts, which commonly leads to signal errors and reduced service life. In real-world machinery, it stabilizes motion control, improves positional accuracy, and reduces unplanned downtime caused by mechanical stress and alignment imperfections.
| Feature | Details | Benefit |
|---|---|---|
| Product Type | Shaft coupling (bar coupling design) | Ensures stable torque transmission with controlled flexibility |
| Shaft Diameter (D1 / D2) | 8 mm / 8 mm | Perfect fit for common encoder and motor shafts |
| Misalignment Compensation | Radial ±0.3 mm, Axial ±0.2 mm, Angular ±3° | Reduces vibration, protects bearings and encoder shafts |
| Maximum Speed | Up to 10,000 rpm | Reliable operation in high-speed motion systems |
| Maximum Torque | 380 Ncm | Supports consistent power transfer under load |
| Torsional Spring Rigidity | 38 Nm per wheel | Maintains accurate rotational feedback without backlash |
| Coupling Length | 24 mm | Compact design ideal for space-constrained machines |
| Material – Body | Fiberglass-reinforced polyamide | High durability with vibration-damping characteristics |
| Material – Hub | Aluminum | Lightweight, corrosion-resistant, and mechanically stable |
| Design Advantage | One-piece flexible bar structure | Minimizes maintenance and increases service life |
| Typical Applications | Encoders, servo motors, automation drives | Improves measurement accuracy and system reliability |
| Product Segment | Shaft adaptation | Optimized for precise mechanical integration in automation |
Download SICK KUP-0808-S (5314177) Datasheet
| Item | Details |
|---|---|
| EAN Number | 4047084153327 |
| Net Weight | 13 g |
| Country of Origin | Germany |
High-speed packaging machines rely on rotary encoders to control positioning, sealing, and cutting operations. Small alignment errors between motor and encoder shafts can generate vibration and unstable feedback signals. The SICK KUP-0808-S shaft coupling mitigates these issues by absorbing radial, axial, and angular offsets while maintaining torsional stability. Its flexible bar structure allows smooth rotation at high speeds, helping encoders deliver consistent signals. This results in improved machine accuracy, reduced mechanical stress, and fewer stoppages in continuous packaging operations running around the clock.
In compact automation systems, space limitations often prevent ideal shaft alignment between servo motors and feedback devices. The SICK KUP-0808-S is well suited for these layouts due to its short overall length and built-in misalignment compensation. By reducing vibration transfer and limiting bearing loads, it protects both the motor and encoder over long operating periods. The coupling supports stable motion feedback, enabling precise control in robotic arms, pick-and-place units, and modular automation cells where reliability and repeatability are essential.
Conveyor-based material handling systems use rotational sensors to monitor belt speed and positioning. Structural flexing, thermal changes, and installation tolerances can introduce shaft misalignment that affects sensor accuracy. The SICK KUP-0808-S addresses this by isolating the sensor from mechanical stress while ensuring smooth torque transmission. Its ability to tolerate misalignment helps maintain stable measurements, reduces vibration-induced errors, and minimizes maintenance requirements. This improves overall system efficiency in logistics, warehousing, and automated production environments.
Test rigs and calibration systems frequently undergo setup changes, making precise shaft alignment difficult to maintain. The SICK KUP-0808-S provides a dependable connection between drive motors and measurement devices by accommodating alignment variation without compromising rotational accuracy. Its torsional rigidity supports repeatable results, while its flexible structure protects sensitive instruments from mechanical overload. This makes it an effective choice for laboratory testing, endurance trials, and quality verification systems where consistent data and component protection are critical.
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