Food & Drink Processing & Packaging Issue 55 2024 | Page 54

Ruland stainless steel oldham coupling with PEEK center disk for high temperature and corrosion resistance

Oldham couplings from Ruland for food and beverage equipment

Food processing equipment require a diverse range of components due to various requirements in the operating environment such as washdown , high temperature , and caustic chemicals . Oldham couplings are an ideal coupling for food and beverage equipment due to their misalignment accommodation , zerobacklash properties , and balanced design . Ruland manufactures hubs in aluminium for general purpose applications and 303 stainless steel for high corrosion and temperature applications , giving designers an offthe-shelf coupling suitable for various servo-driven applications such as connecting a motor to a ball screw , lead screw or gearbox .
Oldham couplings are comprised of two hubs that mate to a center disk . This three-piece design allows food and beverage equipment designers to customize oldham couplings with a clamp or set screw hub with inch , metric , keyed , and keyless bores . They have a balanced design for reduced vibration at speeds up to 6,000 rpm and operate with low bearing loads , protecting these sensitive components from premature failure . In addition , Ruland uses a proprietary hub machining process that leaves a smoother surface for interaction between the hub and disk , resulting in longer life and reduced downtime .
54 FDPP - www . fdpp . co . uk
Ruland stainless steel oldham coupling , ideal for food and beverage equipment due to its misalignment accommodation , zero-backlash properties and balanced design
The oldham disk is available in acetal for zero-backlash and high torque capacity , PEEK for high temperature and corrosion resistance , and nylon for dampening and noise reduction . In the event of failure or wear , the disk is replaceable , restoring the original performance characteristics of the coupling . Oldham couplings also act as a mechanical fuse during torque overload situations , with the disk breaking cleanly and stopping power transmission .
The use of 303 stainless steel combined with a PEEK disk allows designers to use standard oldham couplings in a wider variety of servodriven applications . Stainless steel hubs have hardware of like material to maintain consistent corrosion resistance . Ruland adds a proprietary surface treatment to hardware to prevent galling .
Ruland oldham couplings are available in bore sizes from 3 mm to 32 mm . Disks can be manufactured with a center hole to allow further shaft penetration or slots for retention hardware to attach the disk to a hub so it can stay in place during disassembly .
Oldham couplings are carefully manufactured in Ruland ’ s factory in Marlborough , Massachusetts under strict controls using proprietary processes . Ruland manufactures couplings and shaft collars for food processing and packaging equipment in a variety of sizes , styles and materials , and supplies adjustable handles , modular mounting systems , universal joints and other components to meet the demands of this industry . Design engineers benefit from using Ruland because they can select many standard instock parts from a single source . 3D CAD files , full product specifications , and additional technical information are available on www . ruland . com .