German KWD Kupplungswerk couplings, KWD Kupplungswerk models, KWD Kupplungswerk prices

KWD Kupplungswerk couplings are components that connect the prime mover to the driven machine. Their main function is overload protection. The torque limiter restricts the torque transmitted by the drive system by slipping when the required torque exceeds the set value due to overload or mechanical failure. It automatically re-engages once the overload condition disappears. This prevents mechanical damage and avoids costly downtime losses.

KWD Kupplungswerk coupling manufacturing process

Jaw couplings are manufactured using machining methods such as turning, milling, and broaching, followed by overall heat treatment to ensure sufficient mechanical strength. There is also a type of jaw hub on the market that is cast, allowing for mass production and eliminating machining loss. Therefore, the price is much lower than that of machined parts. However, the performance of castings is not very good. It is best not to use them in important applications. Furthermore, the jaws of cast hubs are prone to tooth breakage (jaw teeth falling off) under high speed or high load conditions. 1) Compact, backlash-free, available with three different hardness elastomers; 2) Absorbs vibration, compensates for radial and angular misalignment; 3) Simple structure, easy maintenance, convenient inspection; 4) Maintenance-free, oil-resistant, electrically insulating, operating temperature 20℃ to 60℃; 5) Jaw elastomers are available in four-lobe, six-lobe, eight-lobe, and ten-lobe configurations; 6) Fixing methods include set screw, clamping, and keyway fixation.

KWD Kupplungswerk coupling features

Elastomers are generally composed of engineering plastics or rubber. The service life of the coupling is determined by the service life of the elastomer. Since elastomers are subjected to compression rather than tension, their typical service life is 10 years. Due to their cushioning and vibration-damping effects, elastomers are frequently used in applications with strong vibrations. The performance limit temperature of the elastomer determines the operating temperature of the coupling, typically ranging from -35 to +80 degrees. Jaw couplings feature a simple structure, require no lubrication, are easy to maintain and inspect, are maintenance-free, and allow for continuous long-term operation. High-strength polyurethane elastic elements are wear-resistant and oil-resistant, offering high load capacity, long service life, and safe, reliable operation. They provide stable and reliable performance with good vibration damping, cushioning, and electrical insulation properties. They offer significant axial, radial, and angular compensation capabilities. With a simple structure, small radial dimensions, light weight, and low moment of inertia, they are suitable for medium to high-speed applications. Structural features: 1) Central elastomer connection. 2) Absorbs vibration and compensates for radial, angular, and axial misalignment. 3) Oil-resistant and electrically insulating. 4) Identical rotational characteristics in both clockwise and counter-clockwise directions. 5) Set screw fixation.

KWD Kupplungswerk coupling selection

Jaw couplings mainly come in two types: the traditional straight-jaw type and the zero-backlash curved (concave) jaw type. Traditional straight-jaw jaw couplings are not suitable for high-precision servo drive applications. Zero-backlash jaw couplings evolved from the straight-jaw type, but their design is suited for servo system applications, commonly used to connect servo motors, stepper motors, and ball screws. The curved shape is designed to reduce deformation of the elastic jaw spider and limit the impact of centrifugal force during high-speed operation. A zero-backlash jaw coupling consists of two metal hubs (typically made of aluminum alloy, though stainless steel is also available) and a jaw elastic spider. The jaw elastic spider has multiple lobe branches. Like a slider coupling, it achieves fit between the spider and the hubs on both sides through compression, thereby ensuring its zero-backlash performance. Unlike slider couplings, which transmit torque via shear forces, jaw couplings transmit torque through compression. When using zero-backlash jaw couplings, users must ensure that the maximum load capacity of the elastic element specified by the manufacturer is not exceeded (while maintaining zero backlash). Otherwise, the jaw elastic spider will be compressed, deformed, and lose its elasticity, causing the preload to disappear and resulting in loss of zero-backlash performance. This may lead to serious issues that users might only discover after significant problems occur. Jaw couplings offer excellent balance performance and are suitable for high-speed applications (maximum speed up to 30000 rpm), but they cannot handle large misalignments, especially axial misalignment. Larger eccentricity and angular misalignment will generate higher bearing loads compared to other servo couplings. Another issue worth noting is the failure mode of jaw couplings. Once the jaw elastic spider is damaged or fails, torque transmission is not interrupted; instead, the metal jaws of the two hubs mesh together to continue transmitting torque, which may likely cause system problems. Selecting the appropriate jaw elastic spider material based on actual application is a major advantage of this coupling. Some automation equipment companies offer jaw spiders made of various elastic materials with different hardness and temperature resistance, allowing customers to choose suitable materials to meet the performance standards of their specific applications.

Weidou Intelligent Technology specializes in selling German KWD Kupplungswerk rigid couplings, KWD Kupplungswerk flexible couplings, KWD Kupplungswerk safety couplings, KWD Kupplungswerk universal joints, KWD Kupplungswerk disc couplings, KWD Kupplungswerk jaw couplings, KWD Kupplungswerk flange couplings, KWD Kupplungswerk cross couplings, KWD Kupplungswerk slider couplings, KWD Kupplungswerk gear couplings, KWD Kupplungswerk tire couplings, KWD Kupplungswerk elastic couplings, KWD Kupplungswerk bellows couplings, KWD Kupplungswerk roller chain couplings, KWD Kupplungswerk spring couplings. All KWD Kupplungswerk products are original imports from Germany. Customers are welcome to inquire and place orders.