by William Hewitson, Vice President of Manufacturing and Engineering, Ruland Manufacturing Co., Inc The keys to avoiding coupling failure are correct coupling selection using all application design criteria, proper installation, and periodic system maintenance. Mechanical couplings typically connect rotating shafts to facilitate the transfer of rotary motion and torque. As with all mechanical devices, a […]
Offset couplings eliminate lubrication and system downtime
The “Schmidt” Offset Couplings feature needle bearings with internal micro-poly lubrication that do not require periodic maintenance. With applications for high quality printing, embossing, paper converting, pharmaceutical manufacturing, and automated assembly systems, these Schmidt Offset Couplings transmit constant angular velocity and torque in a range of parallel shaft misalignments, without maintenance on parallel offset shafts. […]
Better coupling stiffness ensures consistent fuel injection testing
Michigan Custom Machines builds end of line functional test machines, primarily for the diesel and automotive industries. This particular application required a 400 lb flywheel to mimic the inertia of a diesel engine driveline. The flywheel was mounted to a shaft that needed to be coupled to a custom camshaft that is actuating a fuel […]
Rigid couplings join variety of unsupported shafts
Line of rigid shaft couplings come in a range of types, sizes, and materials for joining unsupported shafts in applications ranging from delicate instruments to large mixers and pumps. Stafford Rigid Shaft Couplings come in one-, two-, and three-piece designs, with or without keyways, in sizes ranging from 1/8 in. to 4 in. I.D. Featuring […]
Clever engineering renews wrecked steel mill coupling
By Dan Kocel, Emerson Power Transmission Solutions When the bore on the rigid half of a high-torque steel mill coupling was badly galled during a maintenance teardown, an East Chicago, Indiana, mill put the damaged part in the plant’s bone yard. However, engineers at Kop-Flex® – part of the Power Transmission Solutions business of Emerson […]
Altra Holdings Inc. Acquires Leading Brazilian Coupling Manufacturer
Altra Holdings Inc. announced that its subsidiary, Altra Industrial Motion Netherlands BV, has acquired privately held Lamiflex do Brasil Equipamentos Industriais Ltda. (“Lamiflex”). Lamiflex, headquartered in Sao Paulo, is the premier Brazilian manufacturer of high-speed disc couplings, providing engineered solutions to a variety of industries, including oil and gas, power generation, metals and mining. “Expanding […]
Developing magnetic couplings for propulsion and more
Correlated Magnetics Research (CMR) has been awarded a Small Business Innovation Research (SBIR) grant from the Office of Naval Research (ONR) to design and develop high-torque magnetic gears and couplings using CMR’s PolymagnetTM technology. The two-year contract is valued at $747,995 and is a collaborative effort between the U.S. Navy, CMR and MagnaDrive, Inc., of […]
Intermediate Coupling Spacers
SERVOMAX elastomer couplings feature a specially calibrated polyurethane insert, which is preloaded between precision machined driving jaws. They have high torque density, are low in cost, and are used for vibration damping, shock absorption, and compensation for some small amounts of shaft misalignment. Occasionally, machine layouts and mounting arrangements simply do not allow for installers […]
Tests measure differences among Falk Steelflex, Lovejoy, and Dodge grid couplings
Recent third party testing was conducted on Falk Steelflex, Lovejoy and Dodge grid couplings to quantify differences in performance and durability, and understand the affects on coupling performance when one branded part is interchanged with another. The tests prove Falk Steelflex grid couplings offer the lowest total cost of ownership by standing up to impact […]
Custom high torque couplings for large power train applications
Custom high torque CD® couplings up to 20 in. in diameter handle 78,000 Nm peak torque. Available to system designers seeking robust couplings for large and challenging applications, these “super sized” couplings combine high torsional stiffness and high load capacity. With torsional stiffness of 419,000 Nm/DEG and continuous torque of 39,000 Nm, these CD couplings […]
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