German TSCHAN coupling TSCHAN model TSCHAN price

TSCHAN couplings contain an elastic compound with pre-compressed rubber, providing additional strength and extending service life. This coupling accommodates all types of misalignment. The hub material is high-strength aluminum alloy, which is lightweight and corrosion-resistant. The rubber component is primarily used for vibration damping, ensuring smooth and quiet power transmission, thereby protecting the drive source and driven machinery. Installation is simple; since the rubber part is a split insert, it can be installed by insertion after shaft alignment. Elastic couplings use parallel or spiral slit systems to accommodate various misalignments and transmit torque precisely. Elastic couplings generally offer good performance and price advantages, making them the preferred product in many practical applications of stepper and servo systems. The one-piece design enables elastic couplings to achieve zero-backlash torque transmission and maintenance-free operation. Elastic couplings mainly consist of the following two basic series: spiral slit type and parallel slit type.

TSCHAN coupling manufacturing process

Jaw couplings are machined using turning, milling, and broaching methods, 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 losses. 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 tooth detachment) 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℃-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.

TSCHAN 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 the elastomer is subjected to compression rather than tension, its typical service life is 10 years. Due to the buffering and vibration-damping effects of the elastomer, it is frequently used in applications with strong vibrations. The performance limit temperature of the elastomer determines the operating temperature of the coupling, generally 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, buffering, and electrical insulation properties. They have 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) Connected by an intermediate elastomer. 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) Secured with set screws.

TSCHAN coupling installation method

1) Before installation, first check whether the shafts of the prime mover and the working machine are concentric, and whether there is any packaging paper or damage on the shaft surfaces. Check whether there are any foreign objects in the bores of the two half-couplings of the jaw coupling, and whether there is any damage to the inner edges of the bores. If present, clean the shafts and half-couplings thoroughly, and treat any damage with a fine file. Then check whether the inner bore diameter and length of the two half-couplings match the diameter and shaft extension length of the prime mover and working machine. Generally, when selecting models, it is advisable to make the length of the half-couplings at the prime mover and working machine ends 10— 30mm shorter than their respective shaft extension lengths. 2) To facilitate installation, it is best to preheat the two half-couplings in an oven or oil bath at 120--150 to expand the inner bore size for easier mounting. After installation, ensure that the shaft end does not protrude beyond the face of the half-coupling; flush alignment is preferred. Check the distance between the two half-couplings: measure the readings at 3--4 points along the inner sides of the flanges of the half-couplings and take the average value. The error between this value and the sum of the measured dimensions of the spacer and the two diaphragm packs should be controlled within the range of 0—0.4mm. 3) Alignment: Use a dial indicator to check the face runout and outer diameter runout of the flanges of the two half-couplings. When the outer diameter of the flange is less than 250mm, the runout value should not exceed 0.05mm; when the outer diameter of the flange is greater than 250mm, the runout value should not exceed 0.08. 4) Install bolts: Insert the bolts through the small holes on the outside of one flange, pass them through the large holes on the outside of the other flange, and fit buffer sleeves and spring washers, then tighten the nuts with a wrench. If installation is improper or removal/replacement is required, ensure that the shafts and half-couplings are not damaged. After installation, rotation should be free without binding. 5) Operator notes: Before starting the equipment, check whether the nuts of the jaw coupling are loose or missing. If so, tighten the nuts promptly with a wrench.

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