German RICHCO coupling, RICHCO model, RICHCO price

RICHCO 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 slot systems to accommodate various misalignments and transmit torque precisely. Elastic couplings generally offer good performance and price advantages, making them the preferred choice in many practical applications of stepper and servo systems. The one-piece design enables elastic couplings to transmit torque with zero backlash and offers maintenance-free operation. Elastic couplings mainly consist of two basic series: spiral slot type and parallel slot type.

RICHCO Coupling Introduction

Gear couplings have small radial dimensions and high load-carrying capacity. They are commonly used for shaft transmissions under low-speed, heavy-load conditions, such as in metallurgy, mining, and lifting/transport industries. They are also suitable for petroleum, chemical, and general machinery industries. High-precision gear couplings that have undergone dynamic balancing can be used for high-speed transmissions, such as gas turbine shaft drives. Since drum-shaped gear couplings offer greater angular compensation than straight-tooth gear couplings, drum-shaped gear couplings are widely adopted both domestically and internationally, while straight-tooth gear couplings should be avoided whenever possible. Gear couplings are a type of movable rigid coupling. They transmit torque and rotational motion between the two halves of the coupling through the meshing of internal and external teeth, suitable for connecting coaxial shaft systems and providing certain compensation for relative displacement between the two shafts. Its structure is shown in Figure One, consisting mainly of an internal gear ring, a gear sleeve, and end covers. Generally, for smaller-sized gear couplings, the end cover and internal gear ring can form an integrated unit. Due to their compact structure, high load capacity, wide operating speed range, and reliable operation, gear couplings are widely used in various mechanical industries including metallurgy, mining, lifting/transport, petroleum, and shipbuilding.

RICHCO Coupling Features

Gear couplings have small radial dimensions and high load-carrying capacity, and are often used for shaft transmissions under low-speed, heavy-load conditions. High-precision gear couplings that have undergone dynamic balancing can be used for high-speed transmissions, such as gas turbine shaft drives. Since drum-shaped gear couplings offer greater angular compensation than straight-tooth gear couplings, drum-shaped gear couplings are widely adopted both domestically and internationally. Straight-tooth gear couplings are considered obsolete products and should be avoided by selectors. Commonly available gear couplings on the market include standard structural gear couplings, drum-shaped gear couplings, and nylon gear couplings. Among these, drum-shaped gear couplings come in numerous models and are widely applied.

RICHCO Coupling Maintenance

There are hundreds of types of gear couplings, but the basic forms are just two: 1) internal and external gear engagement type; 2) face gear engagement type. Other forms are variations based on these two. The internal and external gear engagement type of gear coupling transmits relatively high torque, taking into account the different needs of users during design, it is intentionally designed so that the lengths of the shaft ends on both sides of the gears are inconsistent, so that users can choose the installation direction according to their needs. Therefore, There is no specification regarding which end faces which direction. If replacing on existing equipment during installation, then generally it should be consistent with the original direction; if it is newly designed and manufactured equipment, then it must be installed under the premise of not interfering with other surrounding parts, following the principle that the more engagement surfaces between internal and external gears, the more reliable. When overhauling gear couplings, generally follow these methods: 1) Check the meshing condition of the coupling gear teeth, the contact area along the tooth height shall not be less than 50%, and along the tooth width shall not be less than 70%, the gear surface must not have severe pitting, wear, or cracks. 2) The total radial runout of the coupling's external gear ring shall not exceed 0.03mm, and the axial runout shall not exceed 0.02mm. 3) If the gear ring needs to be removed, special tools must be used, do not hammer, to avoid bending or damaging the shaft. During reassembly, heat the gear ring to approximately 200°C before mounting it onto the shaft. The interference fit between the external gear ring and the shaft is generally 0.01~0.03mm. 4) When reinstalling the intermediate sleeve or other components, assemble them according to the original markings and data. 5) Tighten the bolts evenly using a torque wrench.

Weidou Intelligent Technology specializes in selling German RICHCO rigid couplings, RICHCO flexible couplings, RICHCO safety couplings, RICHCO universal couplings, RICHCO diaphragm couplings, RICHCO jaw couplings, RICHCO flange couplings, RICHCO cross couplings, RICHCO slider couplings, RICHCO gear couplings, RICHCO tire couplings, RICHCO elastic couplings, RICHCO bellows couplings, RICHCO roller chain couplings, and RICHCO spring couplings. All RICHCO products are original imports from Germany. We welcome inquiries and orders from customers.