German Mayr coupling Mayr model Mayr price

Mayr coupling is a torsionally rigid coupling. It has no backlash even under load. Even when misalignment generates load, the rigid coupling still transmits torque rigidly. Light weight, ultra-low inertia and high sensitivity. Maintenance-free, excellent oil resistance and corrosion resistance. Aluminum alloy and stainless steel materials. Set screw type, clamp type and split type are available. Product models with different bore sizes at both ends are also in stock.

Mayr coupling structure

It consists of two hubs and a center slider. The center slider, as a torque transmission element, is usually made of engineering plastic. In special cases, other materials such as metal materials can be selected. The center slider is connected to the hubs on both sides through slots distributed at 90° relative positions, thereby achieving torque transmission. A slight pressure fit between the center slider and the hubs ensures zero-backlash operation during equipment running. With prolonged use, the slider may lose its backlash-free function due to wear. However, the center slider is inexpensive and easy to replace. After replacement, it can still perform its original function. Slider couplings are commonly used with general-purpose motors. In individual cases, they can also be used to connect servo motors. Relative displacement is corrected by the sliding of the center slider during use. Because the half-coupling and the intermediate disc form a sliding pair and cannot rotate relative to each other, the angular velocity of the driving shaft and the driven shaft must be equal. However, when operating with relative displacement between the two shafts, the intermediate disc generates significant centrifugal force, thereby increasing dynamic load and wear. Therefore, attention should be paid during selection to ensure that the operating speed does not exceed the specified value. This type of coupling is generally used for speeds n<250r/min, where shaft stiffness is high and there are no severe impacts.

Mayr coupling features

The material for slider coupling parts can be 45 steel. The working surface requires heat treatment to increase hardness. For lower requirements, Q275 steel can be used without heat treatment. To reduce friction and wear, oil should be injected through the oil hole in the intermediate disc for lubrication during use. Because the half-coupling and the intermediate disc form a sliding pair and cannot rotate relative to each other, the angular velocity of the driving shaft and the driven shaft must be equal. However, when operating with relative displacement between the two shafts, the intermediate disc generates significant centrifugal force, thereby increasing dynamic load and wear. Therefore, attention should be paid during selection to ensure that the operating speed does not exceed the specified value. This type of coupling is generally used for speeds n<250r/min, where shaft stiffness is high and there are no severe impacts. A slight pressure fit between the center slider and the hubs ensures zero-backlash operation during equipment running. With prolonged use, the slider may lose its backlash-free function due to wear. However, the center slider is inexpensive and easy to replace. After replacement, it can still perform its original function. Slider couplings are commonly used with general-purpose motors. In individual cases, they can also be used to connect servo motors. Relative displacement is corrected by the sliding of the center slider during use. Because the resistance to relative displacement is the friction force between the slider and the hubs, the bearing load between them will not increase with increased relative displacement. Slider couplings can eliminate additional loads between shafts during motor automatic control. The fixed body uses splines for sliding. The inner and outer sleeves inside the sliding body can slide relatively in the axial direction. This coupling integrates sliding and rotation. Under the condition of equal rotation diameter, the shortest dimension is far smaller than that of a cross-axis. It improves the uniformity of load distribution on the working surface and can transmit larger torque, but elasticity is slightly reduced.

Mayr coupling applications

Unlike other couplings, the slider coupling has no elastic elements that work like springs. Therefore, the bearing load will not increase with increased relative displacement between shafts. Anyway, this series of couplings offers good value for money. The ability to choose sliders of different materials is the biggest advantage of this coupling. Juren Company can provide a variety of raw material options for center sliders according to specific customer requirements to adapt to different applications. Generally, one type of material is suitable for zero-backlash, high-torque rigidity and large torque conditions. Another type of material is suitable for low-precision positioning, where zero-backlash is not required, but vibration absorption and noise reduction functions are needed. Non-metallic sliders also have excellent electrical insulation properties and can serve as mechanical fuses. When the engineering plastic slider is damaged, torque transmission will be completely terminated, thereby protecting expensive mechanical parts. This design is suitable for large parallel relative displacement. The three-part design of the slider coupling limits its ability to compensate for axial misalignment. For example, it cannot be used in push-pull applications. Meanwhile, because the center slider is floating, the motion of the two shafts must ensure that the slider does not fall off.

Weidou Intelligent Technology specializes in selling German Mayr rigid couplings, Mayr flexible couplings, Mayr safety couplings, Mayr universal couplings, Mayr diaphragm couplings, Mayr jaw couplings, Mayr flange couplings, Mayr cross couplings, Mayr slider couplings, Mayr gear couplings, Mayr tire couplings, Mayr elastic couplings, Mayr bellows couplings, Mayr roller chain couplings, Mayr spring couplings, Mayr original German imports. Welcome customers to inquire and order.