What the SICK KUP-1010-B Bellows Coupling Delivers

The SICK KUP-1010-B is a bellows shaft coupling with 10 mm bores on both the encoder side (D1) and drive side (D2, H8). It handles up to 1.2 N·m of torque and 10,000 rpm, making it a dependable link between motion feedback and rotating machinery in oil and gas operations.

In mission-critical processes, every component must earn its place. This coupling is built for demanding environments, where vibration and temperature swings punish lesser hardware. By absorbing misalignment, it protects the encoder bearings and extends service intervals, which directly reduces maintenance spend.

Key Features and Technical Specifications

• Coupling type: Bellows coupling with stainless steel bellows and aluminum clamping hubs.
• Bore diameter (encoder side, D1): 10 mm.
• Bore diameter (drive side, D2): 10 mm (H8).
• Nominal torque: 1.2 N·m maximum (120 Ncm per datasheet).
• Max. speed: 10,000 rpm maximum.
• Operating temperature: –30 °C to +120 °C (per datasheet).
• Axial offset compensation: max. ± 0.4 mm.
• Radial offset compensation: max. ± 0.25 mm; angular offset max. ± 4°.
• Fastening: Cheese-head screw M2.5 × 8, DIN 912 A2.
• Overall length: 29 ± 1 mm; outer diameter and weight not available in datasheet.

The stainless steel bellows resist corrosion and fatigue, while the aluminum hubs keep rotating mass low. That balance supports high-speed operation without sacrificing torque capacity, so you avoid oversizing and its associated cost.

Why Misalignment Compensation Cuts Operating Costs

Shaft misalignment is a silent budget drain. It accelerates bearing wear, increases vibration and can force unplanned encoder replacement. This unit compensates up to ± 0.4 mm axially, ± 0.25 mm radially and ± 4° angularly. Consequently, small installation errors do not translate into premature failure.

Because the bellows flexes rather than transmitting stress to the encoder shaft, downstream components last longer. In practice, this reduces spare-parts consumption and downtime events. For a pump or compressor station, fewer interventions mean lower labor and production losses. The coupling itself is a low-cost item, yet its influence on total cost of ownership is significant.

The wide operating temperature range of –30 °C to +120 °C allows deployment across climates, from cold wellheads to hot process areas. Therefore, you can standardize on one coupling model and simplify inventory. Fewer part numbers mean less capital tied up in spares and fewer ordering errors.

Installation and Setup Guidance

Mount the coupling on clean, burr-free shafts. Slide the clamping hubs onto the 10 mm shafts and tighten the M2.5 × 8 cheese-head screws to secure the connection. Because the bores are H8 tolerance on the drive side, a proper fit reduces runout. Align the shafts within the compensation limits before final tightening. After installation, rotate the assembly by hand to confirm free movement. During commissioning, verify that the encoder signal remains stable at operating speed. These steps protect both the coupling and the encoder, avoiding rework costs.

Maintenance and Reliability in Harsh Environments

Bellows couplings have no wearing parts in the traditional sense, but the bellows can fatigue if overloaded or misaligned beyond limits. Inspect periodically for cracks, discoloration or loose screws. In oil and gas environments, check for corrosion on the aluminum hubs if exposed to washdown or chemicals. Because the stainless steel bellows resist rust, the coupling remains dependable in humid or coastal sites. However, ensure that the clamping screws stay tight; vibration can loosen them over time. A simple torque check during scheduled maintenance prevents slippage and signal loss. This proactive approach avoids emergency repairs and keeps production on schedule.

Compatibility and Integration Notes

This unit is designed as a shaft adaptation accessory for SICK encoders. Its 10 mm bores suit common encoder shaft diameters, and the clamping hub design allows tool-free adjustment after loosening the screws. When integrating with a drive system, confirm that the encoder shaft and motor shaft match the bore sizes. If the application uses a fieldbus network for encoder feedback, wiring may require an external gateway or connection module. Confirm cables and gateways with the supplier to ensure seamless communication. This coupling is a mechanical interface, so it does not affect the electrical protocol.

Frequently Asked Questions

What is the maximum speed of the SICK unit?

The SICK unit supports a maximum speed of 10,000 rpm, suitable for high-speed encoder feedback applications.

Can this coupling handle both axial and radial misalignment?

Yes, it compensates up to ± 0.4 mm axial offset, ± 0.25 mm radial offset and ± 4° angular offset, protecting the encoder from installation stresses.

What is the operating temperature range of This unit?

The coupling operates from –30 °C to +120 °C per the datasheet, covering a wide range of industrial environments.

Where can I source vfd parts like this coupling for oil and gas applications?

PetroPartsOnline supplies the SICK unit and other motion control components. Contact PetroPartsOnline for parts suited to your application's requirements.

Is This unit currently in production?

The official production status is unverified. Please verify current lifecycle status and availability with PetroPartsOnline before ordering.

Ordering and Support

PetroPartsOnline provides reliable sourcing for critical operations. This unit is available for order, and our team can help confirm compatibility with your encoder model. Contact PetroPartsOnline for parts suited to your application's requirements. With field-proven components and application-specific selection guidance, we support your uptime goals.

{"@context": "https://schema.org", "@graph": [{"@type": "Product", "name": "KUP-1010-B | SICK Bellows Coupling 10 mm Bore", "mpn": "KUP-1010-B", "sku": "KUP-1010-B", "brand": {"@type": "Brand", "name": "SICK"}, "description": "What the SICK KUP-1010-B Bellows Coupling Delivers The SICK KUP-1010-B is a bellows shaft coupling with 10 mm bores on both the encoder side (D1) and drive side (D2, H8). It handles up to 1.2 N·m of torque and 10,000 rpm, making it a dependable link between motion feedback and rotating machinery in oil and gas operations. In mission-critical processes, every component must earn its place. This coupling is built for demanding environments, where vibration and temperature swings punish lesser hard", "image": ["https://www.petropartsonline.com/wp-content/uploads/2026/10/1793130812-api_image__fp99500f67.jpg", "https://www.petropartsonline.com/wp-content/uploads/2026/10/1793130820-api_image__fp13f9581c.jpg", "https://www.petropartsonline.com/wp-content/uploads/2026/10/1793130825-api_image__fp7e77b4aa.jpg"]}, {"@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "What is the maximum speed of the SICK unit?", "acceptedAnswer": {"@type": "Answer", "text": "The SICK unit supports a maximum speed of 10,000 rpm, suitable for high-speed encoder feedback applications."}}, {"@type": "Question", "name": "Can this coupling handle both axial and radial misalignment?", "acceptedAnswer": {"@type": "Answer", "text": "Yes, it compensates up to ± 0.4 mm axial offset, ± 0.25 mm radial offset and ± 4° angular offset, protecting the encoder from installation stresses."}}, {"@type": "Question", "name": "What is the operating temperature range of This unit?", "acceptedAnswer": {"@type": "Answer", "text": "The coupling operates from –30 °C to +120 °C per the datasheet, covering a wide range of industrial environments."}}, {"@type": "Question", "name": "Where can I source vfd parts like this coupling for oil and gas applications?", "acceptedAnswer": {"@type": "Answer", "text": "PetroPartsOnline supplies the SICK unit and other motion control components. Contact PetroPartsOnline for parts suited to your application's requirements."}}, {"@type": "Question", "name": "Is This unit currently in production?", "acceptedAnswer": {"@type": "Answer", "text": "The official production status is unverified. Please verify current lifecycle status and availability with PetroPartsOnline before ordering."}}]}]}