Product category:
Gears, brakes, couplings and engines
News Release from: Ruland Manufacturing Co | Subject: Beam couplings and Oldham couplings
Edited by the Engineeringtalk Editorial
Team on 02 May 2005
Couplings shrink for microcomponent
applications
Ruland Manufacturing Co has extended its beam couplings and Oldham couplings line to include miniature sizes suitable for microcomponent applications.
Ruland Manufacturing Co has extended its beam couplings and Oldham couplings line to include miniature sizes suitable for microcomponent applications Beam couplings are offered as standard parts in 20 different body sizes with outside diameters as small as 9mm and bores as small as 3mm
This article was originally published on Engineeringtalk on 15 Jul 2003 at 8.00am (UK)
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Beam couplings accommodate misalignment
Beam-style couplings are one-piece aluminium or stainless-steel components, which incorporate spiral cuts to accommodate angular misalignment, parallel misalignment and axial motion.
The "third way" to rigid couplings
Nomar rigid shaft couplings are available in a three-piece design by special order.
Oldham couplings are offered in seven sizes of set screw or clamp style hubs with outside diameters starting at 13mm and bores starting at 3mm.
Common applications for miniature beam and miniature Oldham couplings include medical devices, test and measurement instruments, inspection equipment, small encoders, stepper motors and tachometers.
Ruland beam couplings feature multiple spiral cuts to accommodate angular misalignment, parallel misalignment, and axial motion with modest bearing loads.
The multiple cut pattern also provides for high torsional stiffness and higher torque capabilities when compared with single beam couplings.
Available in aluminium for low inertia or stainless steel for higher torque, these single piece design couplings are zero backlash.
Ruland beam couplings conform to industry standard lengths, fitting in confined spaces and allowing for easy retrofits in existing equipment.
Oldham couplings are comprised of two aluminium hubs with drive tenons that mate with a floating centre member.
This design allows for easy sliding to accommodate misalignment.
Oldham couplings have very light bearing loads since the only resistance caused by misalignment is frictional.
They also have the advantages of electrical isolation and relatively low cost.
The couplings accommodate angular and axial misalignment, but are especially useful in applications where parallel misalignment is present.
The replaceable centre discs are available in two materials to suit different applications.
Nylon discs are compliant to dampen vibrations and reduce noise.
Acetal discs are designed especially for precision applications.
They offer zero backlash and high torque capacity.
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