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Related Companies

All Metals & Forge Group, LLC
All Metals & Forge produces rings, flanges, gear blanks, single and double hubs, trunnions, bevel gear blanks, couplings, seamless rolled rings, rims, center hubs, sleeves, gear blanks, discs (pancake forgings), pinion shafts, step-downs, spindles, rack forgings in gear quality carbon and alloy steels with through-hardening, carburizing and bearing quality grades with forged-in steps to save on machining. Shafts are available up to 45-feet-long and 50,000 pounds and the company can produce part weights from under 100 pounds to more than 30 tons for the gear industry.

Related Power Transmission Categories

Clutch Couplings
Composite Disk Couplings
Composite Shaft Couplings
Couplings & U-Joints
Curvic Couplings
Diaphragm Couplings
Disc Couplings
Elastomeric Couplings
Flexible Beam Couplings
Flexible Metallic Couplings
Flexible Nonmetallic Couplings
Fluid Couplings
Gear Couplings
Grid Couplings
Magnetic Couplings
Metal Beam Couplings
Metal Bellows Couplings
Rigid Couplings
Rubber-in-Shear Couplings
Servo Couplings
Spider Couplings
Torque Limiting Couplings
Torsional Couplings
Wrapped Spring Couplings

Related Power Transmission Companies

Arrow Gear Co.
Since its inception in 1947, Arrow Gear Company has continued to build a solid reputation for quality, service and reliability. From the very beginning, Arrow has provided high precision spur, helical and bevel gears that meet the rapidly changing and the demanding requirements of many industries.

DieQua Corp.
Thanks for checking us out! Diequa is a manufacturer and supplier of a wide range of premium quality power transmission and motion control gear drive and connecting components designed specifically to enhance the performance of your machine designs. These include speed reducers, gearmotors, servo planetary reducers, spiral bevel gearboxes, shaft phasing gearboxes, shaft couplings, torque limiters, and screw jack lifting systems.

Hangzhou Xingda Machinery Co. Ltd.
ounded in 1984, Hangzhou xingda machinery co.,ltd specialized in the development, manufacture and sales of machanic products. The factory has more than 33000 square meters workshop, and with more than 100 sets of advanced process machines and test equipments. Our main produces SPEED REDUCER E-RV worm speed reducer,passed the ISO 9001, are sold to more than hundreds of cities all over the world,both at home and abroad, in area of food industries, Kitchen word machinery, printing machinery, woodworking machinery, small textile machinery, rubber machinery, small chemical machinery, plastic machinery etc.

Mach III Clutch Inc.
Mach III Clutch designs and manufactures air and spring set industrial friction clutches and brakes, clutch-brakes, clutch couplings, clutch mechanisms and mechanical torque limiters (slip clutches). All products made in the USA.

R+W America
Over the past 20+ years R+W has developed into a world leader in precision shaft couplings for torsional rigidity, vibration damping, and overload protection. Whether for micro motors or 10 megawatt drives, R+W couplings are customizable for most applications, while many standard models ship from stock. Configurable CAD models are available in a large number of file formats at www.rw-america.com

Sterling Instrument
SDP/SI is a major ISO 9001:2000+AS9100B manufacturer offering the largest off-the-shelf selection of precision mechanical drive components available anywhere. Quotes, online orders, available stock, and 3D CAD Model downloads are available at our new eStore at: www.sdp-si.com/eStore...

Taiwan Precision Gear Corp.
TPG is one professional factory who manufactures all kinds motors, gear box, PMDC motor, drive, clutch, brake, coupling, vibration motor, variable speed drive, disco, right angle worm gear, other power transmission parts.

Zero-Max
Since 1949, Zero-Max, Inc. has created innovative solutions to motion control problems worldwide. With strategic distribution points located throughout the world, Zero-Max can deliver your motion control solution. The Zero-Max team of application specialists can engineer a solution to meet your motion control requirements.

Articles About couplings


1 Developing Flexible Couplings Standards (May 2011)

AGMA Flexible Couplings committee chairman Glenn C. Pokrandt gives an update about standards and other documents under development.

2 Curvic Coupling Design (November/December 1986)

Curvic Couplings were first introduced in 1942 to meet the need for permanent couplings and releasing couplings (clutches), requiring extreme accuracy and maximum load carrying capacity, together with a fast rate of production. The development of the Curvic Coupling stems directly from the manufacture of Zerol and spiral bevel gears since it is made on basically similar machines and also uses similar production methods. The Curvic Coupling can therefore lay claim to the same production advantages and high precision associated with bevel gears.

3 Viewpoint (November/December 1987)

Letters to the editor covering a variety of subjects, including computers in gear design, couplings and more.

4 Variation Analysis of Tooth Engagement and Load Sharing in Involute Splines (June 2010)

Involute spline couplings are used to transmit torque from a shaft to a gear hub or other rotating component. External gear teeth on the shaft engage an equal number of internal teeth in the hub. Because multiple teeth engage simultaneously, they can transmit much larger torques than a simple key and keyway assembly. However, manufacturing variations affect the clearance between each pair of mating teeth, resulting in only partial engagement.

5 Determining Spline Misalignment Capabilities (November/December 1995)

Introducing backlash into spline couplings has been common practice in order to provide for component eccentric and angular misalignment. The method presented here is believed to be exact for splines with even numbers of teeth and approximate for those with odd numbers of teeth. This method is based on the reduction of the maximum effective tooth thickness to achieve the necessary clearance. Other methods, such as tooth crowning, are also effective.

6 Industry Forum (July/August 1988)

Letters to the editor on a variety of subjects, including couplings, gear planers and ausforming.

7 A Modular Approach to Computing Spiral Bevel Gears and Curvic Couplings (May/June 2000)

In general, bevel gears and curvic couplings are completely different elements. Bevel gears rotate on nonintersecting axis with a ratio based on the number of teeth. Curvic couplings work like a clutch (Fig. 1).

8 Viewpoint (July/August 1987)

In the May/June Issue of your excellent magazine. Mr. Stan Jakuba discusses a serious problem, not only for the gear industry, but any machinery where fluctuating torque is encountered. I would like to make the following comments to his article...

9 Give Your Gears a Break - Select the Right Coupling! (May/June 1987)

How important is the right choice of coupling in determining successful machine design? Consider the following example. A transmission of appropriate size was needed to transfer the speed of the engine driver to that of the driven generator. The transmission was properly selected and sized to endure the rated power requirements indefinitely, but after only a short time in operation, it failed anyway. What happened? The culprit in the case was a coupling. It provided the necessary power and protection against misalignment but it lacked the ability to isolate the gears from the torque peaks of the diesel engine.

10 Gears for Nonparallel Shafts (September/October 1986)

Transmission of power between nonparallel shafts is inherently more difficult than transmission between parallel shafts, but is justified when it saves space and results in more compact, more balanced designs. Where axial space is limited compared to radial space, angular drives are preferred despite their higher initial cost. For this reason, angular gear motors and worm gear drives are used extensively in preference to parallel shaft drives, particularly where couplings, brakes, and adjustable mountings add to the axial space problem of parallel shaft speed reducers.

News Items About couplings

1 Renold Introduces Interchangeable Range of Gearboxes and Couplings (May 24, 2007)
Renold will exhibit its SMXtra interchangeable range of gearboxes and fluid couplings, for quarrying applications, at the Hillhead Exhibi... Read News

2 KTR Introduces New Couplings (April 16, 2005)
The Rotex ZS-DKM-H from KTR Corp. has been developed for the pump industry. The main innovation feature of the H type coupling is the she... Read News