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Lovejoy Beam Coupling, ADB Series Double Beam Clamp Style, Aluminum, Complete Coupling

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Mfr Part # Coupling Size Bore A Diameter Bore B Diameter Outside Diameter Length Torque ASIN

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Currently showing 1-20 of 23 Next 3 »
68514476830 ADB3 3/16" 3/16" 0.5" 0.902" 3.5 in-lbs B004QWZHYM yes $46.91 Buy Options
68514476831 ADB3 3/16" 1/4" 0.500" 0.902" 3.5 in-lbs B003U6HYKU yes $42.90 Buy Options
68514476832 ADB3 1/4" 1/4" 0.500" 0.902" 3.5 in-lbs B003U6HYK0 yes $42.90 Buy Options
68514476833 ADB3.5 3/16" 3/16" 0.626" 1" 6.2 in-lbs B004QWZHYW yes $56.00 Buy Options
68514476835 ADB3.5 1/4" 1/4" 0.626" 1" 6.2 in-lbs B003U6HYMI yes $51.57 Buy Options
68514476836 ADB3.5 1/4" 5/16" 0.626" 1" 6.2 in-lbs B004QWZHUG yes $56.00 Buy Options
68514476839 ADB4 1/4" 3/8" 0.752" 1.043" 12 in-lbs B003U6HYNW yes $51.57 Buy Options
68514476840 ADB4 5/16" 5/16" 0.752" 1.043" 12 in-lbs B004QWZI8W yes $77.43 Buy Options
68514476841 ADB4 3/8" 3/8" 0.752" 1.043" 12 in-lbs B003U6HYP0 yes $51.57 Buy Options
68514476842 ADB5 3/8" 3/8" 1.000" 1.500" 20 in-lbs B003U6HYR8 yes $76.37 Buy Options
68514476843 ADB5 3/8" 1/2" 1.000" 1.500" 20 in-lbs B003U6HYQO yes $76.37 Buy Options
68514476844 ADB5 1/2" 1/2" 1.000" 1.500" 20 in-lbs B003U6HYPU yes $76.37 Buy Options
68514476846 ADB6 3/8" 1/2" 1.252" 2.252" 38 in-lbs B003U6HYVO yes $76.37 Buy Options
68514476848 ADB6 1/2" 1/2" 1.252" 2.252" 38 in-lbs B003U6HYS2 yes $90.72 Buy Options
68514476849 ADB6 1/2" 5/8" 1.252" 2.252" 38 in-lbs B003U6HYUK yes $90.72 Buy Options
68514476850 ADB6 5/8" 5/8" 1.252" 2.252" 38 in-lbs B003U6HYXM yes $90.72 Buy Options
68514476851 ADB7 5/16" 5/16" 1.5" 2.626" 88 in-lbs B004QWZI8M yes $107.15 Buy Options
68514476852 ADB7 3/8" 3/4" 1.500" 2.626" 88 in-lbs B003U6HYZ0 yes $96.14 Buy Options
68514476853 ADB7 1/2" 1/2" 1.5" 2.626" 88 in-lbs B004QWZHJM yes $107.15 Buy Options
68514476854 ADB7 1/2" 5/8" 1.5" 2.626" 88 in-lbs B004QWZHNI Usually ships in 4 to 6 weeks $115.12 Buy Options

Key Features

  • Double beam coupling for use in angular, parallel, and axial misalignment scenarios requiring zero backlash
  • Aluminum for less weight and quicker response time than stainless steel
  • Clamp mounting style installation helps increase positioning accuracy
  • Single-piece coupling for longer service life than couplings with moving parts
  • Operating temperatures up to 200 degrees F

Product Description

This Lovejoy aluminum double beam coupling is intended for use in angular, parallel, and axial misalignment scenarios requiring zero backlash and less weight and quicker response time than a stainless steel coupler has. Beam couplings, a type of flexible coupling, use one or more spiral slots cut in a single piece of metal rod to form a "spring" center section, referred to as a helical coil or beam. The beam portions of the coupling flex to accommodate misalignment while continuing to convey power between the attached shafts. With two beams, each flex point corrects for a specific misalignment, which helps prevent stress on shaft bearings. This beam coupling corrects angular misalignment up to 7 degrees, parallel misalignment up to 0.024", and axial motion up to 0.010". This beam coupling's clamp-style mount can be installed or replaced without moving the shafts, which eases installation. Its single-piece construction provides longer service life than couplings with moving parts. The aluminum coupling is resistant to corrosion and can operate in temperatures up to 200 degrees F. This Lovejoy double beam coupling is suitable for use in power transmission applications such as encoders, stepper drives, and servo drives.

Flexible couplings are used to link two rotating shafts that are not aligned in order to transmit the rotational power, known as torque, from one shaft to the other. Most flexible couplings consist of two hubs and a middle assembly; each hub attaches to a shaft while the middle assembly flexes between the hubs to accommodate the misalignment of the two shafts. Shaft misalignments are generally either parallel or angular and cause complications to transmitting rotational power from one shaft to another in the form of stresses, loads, vibrations, and other forces, which vary from one type of misalignment to another. Flexible couplings are used in a broad range of applications, such as in motor vehicles, conveyors, escalators, agricultural, forestry and mining equipment, aeronautics, robotics and space exploration, among others.

Lovejoy manufactures flexible couplings, universal joints, variable speed drives and various other transmission and mechanical power products. Their products meet the standards of the International Organization for Standardization (ISO), the Deutsches Institut für Normung (DIN), the American National Standards Institute (ANSI), the American Gear Manufacturers Association (AGMA), the Society of Automotive Engineers (SAE) and Japanese Industrial Standards (JIS) for quality assurance. The company, founded in 1900, is based in Downers Grove, IL.

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