German RADEX-N 115 coupling RADEX-N 115 model RADEX-N 115 price

RADEX-N 115 coupling slider is ring-shaped, made of steel or wear-resistant alloy. Cross-slider couplings are suitable for transmissions with lower speeds and higher torque transmission. Slider couplings consist of two shaft hubs and a center slider. The center slider, as a torque-transmitting element, is usually made of engineering plastic; in special cases, other materials such as metal can be selected.

RADEX-N 115 coupling structure and applications

Universal couplings have various structural types, such as cross-axis type, ball cage type, ball fork type, lug type, ball pin type, ball joint type, ball joint plunger type, triple-pin type, triple-fork type, triple-ball-pin type, hinge rod type, etc.; the most common is the cross-axis type, followed by the ball cage type. In practical applications, they are classified into heavy-duty, medium-duty, light-duty, and small-sized based on the magnitude of transmitted torque. They are mechanical components used to connect two shafts (driving shaft and driven shaft) in different mechanisms, enabling them to rotate together to transmit torque. In high-speed, heavy-load power transmissions, some couplings also provide buffering, vibration damping, and improved dynamic performance of the shaft system. A coupling consists of two halves, each connected to the driving shaft and the driven shaft respectively. Most prime movers are connected to working machines via couplings.

RADEX-N 115 coupling classification

There are many types of couplings. Based on the relative position of the two connected shafts and changes in position, they can be classified into: 1) Fixed couplings. Primarily used where strict alignment of the two shafts is required and no relative displacement occurs during operation. The structure is generally simple and easy to manufacture, and the instantaneous rotational speeds of the two shafts are identical. Main types include flange couplings, sleeve couplings, and clamp-shell couplings. 2) Movable couplings. Primarily used where there is misalignment between the two shafts or relative displacement during operation. Based on the method of compensating for displacement, they are further divided into rigid movable couplings and elastic movable couplings. Rigid movable couplings compensate using the mobility in one or several directions provided by the dynamic connections between working parts, such as jaw couplings (allowing axial displacement), cross-groove couplings (used to connect two shafts with small parallel or angular displacement), universal couplings (used where there is large misalignment angle or large angular displacement during operation), gear couplings (allowing combined displacement), and chain couplings (allowing radial displacement). Elastic movable couplings (abbreviated as elastic couplings) use the elastic deformation of elastic elements to compensate for misalignment and displacement of the two shafts, while the elastic elements also provide buffering and vibration damping properties. Examples include serpentine spring couplings, radial multi-layer leaf spring couplings, elastic ring pin couplings, nylon pin couplings, and rubber sleeve couplings. Some couplings have been standardized. When selecting, first determine the appropriate type based on work requirements, then calculate torque and speed based on shaft diameter, look up applicable models in relevant manuals, and finally perform necessary calculations for certain key components.

RADEX-N 115 coupling selection

Before selecting a universal coupling, the following prerequisites and conditions must be clarified: 1) Whether there is a transmission device between the prime mover and the universal coupling. If yes, what is the transmission ratio? After passing through the intermediate transmission device, how many shafts output power, i.e., is there power splitting? Consider the type, power, and speed of the prime mover. 2) Consider the type of prime mover and the load category transmitted by the selected cross-axis universal coupling: unidirectional constant load, pulsating load, or bidirectional alternating load. What is the installation status of the universal coupling? Horizontal, vertical, or inclined installation. Try to keep the axis break angle less than 3 degrees. If inclined installation is unavoidable, determine the horizontal and vertical angles. 3) Consider the working environment of the prime mover. Are there adverse environmental conditions such as high temperature, dust, water spray, or chemical corrosion? Select the corresponding type of universal coupling based on the usage environment. 4) Know the required connection forms at both ends of the universal coupling and specific installation dimensions, and understand whether there are special requirements such as mounting brackets. 5) What is the rotational speed of the cross-axis universal coupling itself? Is dynamic balancing required? If dynamic balancing or balancing is required, specify the required balance quality grade. 6) Are there limitations on the installation position? What is the specific installation length? Is telescopic movement required? If telescopic movement is required, what is the outward extension amount from the shortest state of the universal coupling? For universal couplings that do not require telescopic movement, compensation for axial dimensional errors must be considered, and the compensation location within the system must be determined. By understanding the above prerequisites, gradually determine the specifications of the universal shaft and finally decide which structural form to select. Structural forms of universal couplings include cross-axis type, ball cage type, ball fork type, lug type, ball pin type, ball joint type, ball joint plunger type, triple-pin type, triple-fork type, triple-ball-pin type, hinge rod type, etc. The most common is the cross-axis type, followed by the ball cage type. In practical applications, they are classified into heavy-duty, medium-duty, light-duty, and small-sized based on the magnitude of transmitted torque. To select a coupling suitable for the prime mover from such a wide variety of universal couplings, a thorough understanding of the aforementioned prerequisites and external influencing factors is essential.

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