In an online post, the company says wave couplings connect two shafts and transmit rotational movements and torques from a driving shaft to a driven shaft. The shafts are coupled either through a rigid or elastic connection. In most cases, linear shaft connections are realized using elastic wave couplings. Wave couplings are also used to compensate for axial and radial shaft misalignments and angular errors, as well as to dampen vibrations and shocks.
Applications of Norelem couplings
Wave couplings are used in various applications and designs, from simple tools, packaging, and textile machinery to complex positioning drives in control and regulation technology. They are divided into two functional areas. First, applications where torque and power transmission are essential, such as pumps, conveyor systems, and agitators. Second, applications for position and motion control that require precise and accurate transmission of rotational movements, such as in servo and stepper motors for linear axes.
Available designs
Norelem offers wave couplings such as metal bellows and elastomer jaw couplings, as well as spring beams, cross-sliding, and rigid couplings. The choice of design depends primarily on the transmitted power and the type of connection to be compensated. The installation method is also an important factor. Thus, there are designs with clamping hubs and detachable clamping hubs, which are slotted and split for rigid couplings. Couplings with detachable, split clamping hubs can be mounted radially, and the shaft and drive do not need to be disassembled for the installation or replacement of the coupling.
Wave couplings are virtually maintenance-free. Only in the case of elastomer jaw couplings are the coupling stars made of polyurethane subject to aging and wear due to the load. However, the stars can be easily replaced without having to replace the entire coupling.
Metal bellows couplings are made of stainless steel and aluminium, with the metal bellows made of stainless steel and the hub made of aluminium and stainless steel. These couplings are mounted with clamping hubs or detachable clamping hubs. Available for shaft diameters from 3 to 70 mm, they transmit torques from 0.5 to 1500 Nm.
Elastomer jaw couplings are made of aluminium and stainless steel, with the coupling star made of polyurethane. The assembly is done using clamping hubs or detachable clamping hubs. Norelem's elastomer jaw couplings are available for shaft diameters from 3 to 60 mm and can transmit torques from 0.7 to 525 Nm.
Spring beam couplings are made of aluminium and stainless steel. They are mounted using clamping hubs or detachable clamping hubs. These spring beam couplings are designed for shaft diameters from 3 to 35 mm and torques from 3 to 130 Nm.
Cross-sliding couplings are made of aluminium and can be mounted on shaft diameters from 3 to 14 mm using clamping hubs. They transmit torques from 1 to 7 Nm.
Rigid couplings are made of steel and stainless steel and are of a slotted and split construction. They can transmit torques from 16 to 2250 Nm, depending on shaft diameters ranging from 8 to 85 mm.