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About Us

EVER-POWER GROUP CO., LTD. IS SPECIALIST IN MAKING ALL KINDS OF MECHANICAL TRANSMISSION AND HYDRAULIC TRANSMISSION LIKE: PLANETARY GEARBOXES, WORM REDUCERS, IN-LINE HELICAL GEAR SPEED REDUCERS, PARALLEL SHAFT HELICAL GEAR REDUCERS, HELICAL BEVEL REDUCERS, HELICAL WORM GEAR REDUCERS, AGRICULTURAL GEARBOXES, TRACTOR GEARBOXES, AUTO GEARBOXES, PTO DRIVE SHAFTS, SPECIAL REDUCER & RELATED GEAR COMPONENTS AND OTHER RELATED PRODUCTS, SPROCKETS, HYDRAULIC SYSTEM, VACCUM PUMPS, FLUID COUPLING, GEAR RACKS, CHAINS, TIMING PULLEYS, UDL SPEED VARIATORS, V PULLEYS, HYDRAULIC CYLINDER, GEAR PUMPS, SCREW AIR COMPRESSORS, SHAFT COLLARS LOW BACKLASH WORM REDUCERS AND SO ON. FURTHERMORE, WE CAN PRODUCE CUSTOMIZED VARIATORS, GEARED MOTORS, ELECTRIC MOTORS AND OTHER HYDRAULIC PRODUCTS ACCORDING TO CUSTOMERS’ DRAWINGS.

Our Product

Jaw Couplings are one of the first and still most widely used elastomer couplings in the world due to their inherent simplicity. Two identical hubs with 3 face lugs are connected through a star shaped element, sometimes referred to as an insert or spider. The 3 piece design makes them simple to work with and popular on applications such as pumps, fans, blowers and compressors.

Curved Jaw Couplings

The Curved Jaw couplings can be utilized in many applications and serve as an all-purpose coupling. The basic design of the Curved Jaw allows for a higher torque capacity in a compact design. The curved tooth has a greater contact area which gives it the high torque capacity, and reduces edge pressure. It will accommodate axial, radial and angular shaft misalignments. The hubs are produced from a variety of materials including; aluminum, gray iron, steel, sintered steel, and stainless steel. The spider elements are available in various durometer options in Urethane & Hytrel. The spiders can perform under normal duty cycle conditions to heavy duty cycles which include shock loading and can minimize torsional vibrations in the system.

Jaw Couplings

A jaw coupling is a type of coupling designed to transmit torque while damping system vibrations, which protects other components from damage. Jaw couplings are considered the most popular couplings utilized in industry for relatively small shaft sizes. Jaw couplings are composed of three parts: two metallic hubs and a insert, which is referred to as a “spider.” The three parts press fit together with a jaw from each hub fitted alternately with the lobes of the spider. The curved jaws of the hubs reduce deformation of the spider to maintain the zero backlash fit. It is important to note that most manufacturers sell the components of a jaw coupling separately. Most applications will require the hubs to have different bore sizes, as the shafts are unlikely to be the same size.

Jaw Coupling UFC Series

Jaw Couplings require no lubrication and provide high reliability for light to medium duty applications with good alignment of equipment and no requirement for torsional dampening.

In normal operating conditions there is no metal to metal contact so the life of the hubs is virtually indefinite. However, in a catastrophic failure of the element the load would still be carried by the hubs providing a degree of failure protection.

The standard element material is NBR (N)-‘Synthetic Rubber’. It is highly flexible, oil resistant and the torsionally softest of the element options. It has a temperature operating range suitable for most industrial applications and allows for up to 1 degree misalignment capacity of the connected shafts. NBR is the most economically priced option.