Rokee® Customized Universal Gear Coupling for Customers, Rokee® is a well-known high-quality supplier of couplings and technical services in China.
Universal Gear Coupling belongs to a type of rigid flexible coupling, which achieves superior transmission performance and displacement compensation capability through the specially designed combination of drum shaped outer teeth and straight tooth inner teeth. This type of coupling was first developed to solve the problems that traditional spur gear couplings are prone to under heavy load conditions, and has now been widely used in various industrial fields.
In terms of core structure, the drum gear coupling consists of internal gear rings and flange half couplings with external teeth. Its most prominent feature is that the outer teeth are made into a spherical shape, with the center of the spherical surface located on the gear axis. This design results in a larger tooth flank clearance than typical gears. According to the definition of standard JB/T 8854.2-2001 (replacing ZBJ19013-89), drum gear couplings can be divided into various series such as GICL, GIICL, GCLD, etc. Among them, GIICL type is further divided into Type I and Type II: Type I adopts a separated sealing end, allowing for larger radial displacement; Type II is an integral sealed end with a more compact structure.
Compared with ordinary spur gear couplings, drum gear couplings have three basic characteristics: firstly, they can compensate for various axial deviations such as radial, axial, and angular directions; Secondly, its structural design is compact and has a small turning radius; Finally, it has strong load-bearing capacity and a transmission efficiency of up to 99.7%. These characteristics make the drum gear coupling particularly suitable for low-speed heavy-duty working conditions, such as metallurgy, mining, lifting and transportation industries, and it is also widely used in shaft transmission of various machinery such as petroleum, chemical, and general machinery.
From the perspective of development history, the drum gear coupling represents the advancement of gear coupling technology. Traditional spur gear couplings have gradually been replaced by drum gear couplings due to their limited compensation capacity and susceptibility to stress concentration. drum gear couplings are commonly used as standard equipment in major industrial countries both domestically and internationally, playing a crucial role in heavy-duty equipment and precision transmission scenarios.
Over the years, with excellent quality, we have been continuously providing many coupling products of various categories and uses complying with multiple standards and a full range of services, from the product selection to final installation and operation, for the industry fields of ferrous metallurgy, nuclear power, gas turbine, wind power, ropeway construction, lifting transportation, general equipment, etc. We strictly comply with quality system requirements and implement the whole process control to become a reliable and trustworthy partner of customers.
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