Couplings connect rotating shafts in equipment powered by electric motors and other drives. All 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 […]
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, […]
Sure-Flex Plus couplings ANSI centrifugal pump packages
Located in the greater Houston area, GPM Pump and Seal is a provider of pumps, pump parts, mechanical seals and complete pump systems for various applications including oil and gas, petrochemical, mining, water and wastewater treatment. GPM has been specifying TB Wood’s Sure-Flex couplings for several years. Early on, the company used other couplings, but […]
How do you select the right coupling when electrical isolation is a priority?
By Joyce Laird, contributing editor Understanding design challenges Most of the couplings on the market today are either partially, or entirely, made of metal. Since metal is such a good electrical conductor it can be a challenge for the design engineer to find a suitable product to serve as a flexible coupling for transmitting torque […]
Case Studies: Helical flexure for two different applications
Application story 1: Challenge: A Helical customer had planned to use the AE087 or AE100 to connect a potentiometer to a control lever. The operating atmosphere included both salt and dirt, plus high parallel misalignment potential. They wanted to use a “D” bore to fasten the lever to a shaft, then connect the coupling to […]
Company profile: Rocom Corporation
Company Name: Rocom Corp. Established: 1980 Headquarters: Huntington Beach, California Products: “Rocom Corporation develops, designs, and manufacturers flexible shaft couplings for the motion control industry..” Mission Statement/Motto: “Rocom Corporation strives to be the worlds leading supplier of flexible shaft couplings to the motion control industry. We are achieving this by continuing to supply our exclusive, […]
Couplings for flatbed laser cutters and engravers
A UK manufacturer of industrial grade flatbed laser cutters and engravers required precision couplings for use on their line of laser systems. The company’s machines are known for their accuracy in all levels of industry, from small architect model makers and education establishments, through large automotive plants. CadCam’s certified Class 1 machines use sealed CO2 […]
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