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A coupling for parallel shafts that are slightly out of alignment consists of a disc on each shaft’s end and an intermediate disc with two feathers on opposing sides that are perpendicular to one another and fit into slots in the corresponding shaft discs. Oldham couplings are used to connect two parallel shafts with lateral misalignment.
It comprises of a central floating portion E with two tongues T1 and T2 that are at an angle and two flanges A and B with slots. Oldham couplings are a three-part arrangement made up of two hubs made of lightweight stainless steel or aluminium that resist corrosion and a disc in the middle.
A minor press fit between the tenons on the hubs and the slots in the disc enables the coupling to function with zero backlash.
The Global Oldham Coupling market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
Ruland, a renowned maker of couplings, recently unveiled their new stainless steel Oldham coupling, which represents a significant advancement for applications that operate in corrosive, vacuum, and cleanroom settings. This coupling, which is made of 303 stainless steel, is excellent for usage in corrosive, vacuum, or cleanroom settings.
It is perfect for use in a variety of servo applications because to its zero-backlash design and capacity to handle all types of misalignment. The balanced design of the stainless steel Oldham coupling helps to reduce vibration at speeds up to 6,000 RPM, offering exceptional protection to delicate machine components like bearings.
Oldham couplings are made of a center disc and two metal hubs. Depending on the application’s operating environment and environment, a variety of solutions are available for the center disc.
While nylon discs offer an outstanding amount of dampening and noise reduction, acetal discs are perfect for applications requiring zero-backlash and strong torque capabilities. PEEK discs offer little outgassing and are appropriate for high temperatures.
This coupling is perfect for use in servo applications in the food processing, packaging, and medical industries since it has stainless steel hubs and a PEEK center disc.
Utilizing a unique hub machining technique, a smoother surface is left between the hub and disc, resulting in a longer service life and less downtime. The disc can be replaced in the event of failure without replacing the metal hubs, saving the company money.
Oldham couplings are frequently employed as mechanical fuses as well because when a system is overloaded, the disc breaks and stops electricity from being transmitted.
