German Stromag coupling Stromag model Stromag price

Stromag couplings utilize their mechanical design to enable continuous rotation of two connected shafts and reliably transmit torque and motion, even when the shafts are not collinear and have an axis angle. The greatest feature of universal joints is their high angular compensation capability, compact structure, and high transmission efficiency. The axis angle varies with different universal joint designs, generally ranging from 5° to 45°.

Stromag coupling drive system

Diaphragm coupling shaft drive system: Shaft drives typically connect the driving and driven shafts using one or more diaphragm couplings to form a shaft drive system for transmitting rotation or motion. Diaphragm couplings are primarily used to connect the shafts of motors, gearboxes, and working machines. The bore type, connection type, and dimensions depend mainly on the type and size of the connected shafts. During product design, shafts are generally designed according to international standards for cylindrical and tapered shaft depths; shaft depth standards pertain to shaft design. For various metal diaphragm couplings, the bore range (maximum and minimum bores) and bore length for each size are determined based on the transmitted torque, diaphragm coupling structure, and hub strength during structural and series design. Each size has only one bore length. Internationally, manufacturers specify only one bore length per size in their diaphragm coupling standards. Due to misleading information from GB/T3852, Chinese diaphragm coupling product standards incorrectly associate multiple bore lengths with each size as the bore changes. When converting foreign diaphragm coupling standards to Chinese standards, multiple bore lengths were also included, under the mistaken belief that this constituted complete conversion.

Stromag coupling applications

Widely used in shaft drive systems for various mechanical devices, such as water pumps (especially high-power and chemical pumps), fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, aviation (helicopters), high-speed power transmission systems for ships, steam turbines, piston-driven power transmission systems, tracked vehicles, and high-speed, high-power mechanical transmission systems for generator sets. After dynamic balancing, they are commonly applied in high-speed shaft drive systems.

Stromag coupling usage precautions

1) Products with diaphragms have sharp edges that may cause injury; it is recommended to wear thick gloves during installation. 2) Install protective covers or similar devices around the coupling to ensure safety. 3) If shaft misalignment exceeds the permissible value during installation, the coupling may deform, leading to damage or reduced service life. 4) Permissible shaft misalignment for couplings includes radial, angular, and axial deviations. During installation, adjust to ensure shaft misalignment remains within the permissible values specified in the corresponding product catalog. 5) When multiple types of misalignment occur simultaneously, the corresponding permissible values must be halved. 6) To extend the coupling's service life, it is recommended to keep shaft misalignment within 1/3 of the permissible value. 7) Insert the mounting shafts before tightening the screws; otherwise, the coupling may deform. Use a torque wrench when tightening screws, and do not use screws other than those provided. 8) If abnormal noises occur during operation, stop immediately and check installation precision, loose screws, etc. It is recommended to apply adhesive to the outer surface of the screws after installation and debugging to enhance protection.

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