Twin Spring Coupling has announced the release of its new TSC500 (500-ft lbs) flexible coupling solution. Made from 2 counter wound torsion springs and no internal components means a maintenance free flexible coupling with the ability to work at larger angles than traditional universal, CV, Cardan, beam, bellows and other flexible coupling units, at both […]
Flexible
New flex element/blade triangular bushing design
Ameridrives and Bibby Turboflex, two leading Altra brands, have developed the Tri-Bushing™, a unique flex element/blade triangular bushing design that increases the axial capability of high-performance flexible disc couplings used in turbomachinery applications. Flexible couplings for critical equipment must accommodate angular and axial movement due to thermal growth. In steam and gas turbine applications, machinery […]
How do I prepare for a flexible coupling installation?
To gain some insight on using a rigid coupling to later install a flexible coupling we talked to Bobby Watkins of Ruland manufacturing company to learn more. Here is what he had to say. Here I’m going to talk about how to use a rigid coupling in order to align components in preparation for the […]
What are couplings for power-transmission drive shafts?
Updated May 2019 || As outlined in our coverage of couplings for motion control — here at this couplingtips.com article — couplings connect rotating shafts powered by a drive of some type — often an electric motor. All couplings serve to transmit drive torque and angular velocity. But applications for motion control (such as axes […]
Vector coupling for tugboat winch
One of the World’s largest diesel engine distributors, located in Canada, required a reliable coupling for use on a commercial tugboat’s hydraulic towing winch system. The coupling connects the winch’s hydraulic pump to the front of one of the tug’s twin 1500 HP diesel propulsion engines that transmit 450 HP to the pump. The winch […]
Update on flexible-coupling considerations for OEM and plant designs
All couplings transmit torque and angular velocity. Flexible variations compensate for misalignment. Many of the latter even address vibration and improve system dynamics. Design considerations include machine or installation construction and backlash, torsional stiffness, damping, inertia, torque ratings, maximum rpm, size, misalignments, ease of installation, robustness, and cost. For power transmission (as in motors for […]
Reaction forces from couplings: How to prevent or mitigate?
All flexible couplings compensating for misalignment cause reaction forces, and their effect is significant if misalignment is excessive. These often-overlooked reaction forces transmit to connected shafts and support bearings, and can cause damage to motion axes — especially on precision designs with delicate bearings and slender shafts. Though couplings get their compliance from elastomeric deflection, […]
Flexible gear couplings for printing press application
A leading global commercial printing equipment manufacturer needed a replacement coupling solution for a line of its printing presses. The original disc type couplings, installed on the web press drive cylinders, lacked the required torsional stiffness, causing the rollers to slip, which led to increased amounts of defective printed materials (spoilage). The application had additional […]
ContiTech: Elastic coupling elements
Overview Elastic coupling elements are used as spring elements in diesel drives for vibration-free power transmission. They are used in vehicles, ships, power stations and drives in the field of mechanical engineering. Benefits & Features The primary function of elastic coupling elements is to insulate torsional vibrations. Elastic coupling elements have an extremely broad torsion […]
Flex P couplings for rotary encoders
Italsensor, a leading manufacturer of incremental and absolute rotary encoders based near Turin, Italy, required precision couplings for its range of angular and rotary encoders (both optical and magnetic). The company specializes in the design and manufacture of both standard and custom rotary encoder variants that are supplied for industries including textile, packaging, printing, elevator, […]
