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Accu-Coder Encoders

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Magnetic Couplings

Problem: You've got a machine with a 1.25" diameter shaft with only 1/8" of shaft length accessible. The thru-bore rotary encoder you're trying to install requires at least 0.75" shaft engagement. You could drill and tap the machine shaft, then fabricate and install a stub shaft. But, this can be costly and time consuming.

Solution: The Magnetic Coupling from Encoder Products Company.

Accu-Coder Magnetic/Shaft Couplings Distributors

Couplings

If you are looking for Accu-Coder Magnetic Coupling, please call us at (800) 894-0412 or email us at info@clrwtr.com we will do our best to help you find the Accu-Coder 176409-01 coupling designed for encoders with a 3/8" (0.375") bore that you are looking for at the most competitive prices possible. If you are searching for Encoder Products Company (EPC) 176282-01 coupling designed for encoders with a 5/8" (0.625") bore technical information (data-sheets) please use the datasheets or product selection guide page links.

The concept is simple. One end of The Magnetic Coupling is a 5/8" or 3/8" diameter shaft that fits into the thru-bore encoder. The opposite end is a flat magnetic surface that attaches and holds to the end of the machine shaft to which you want to apply the encoder.

Here's how to install the Magnetic Coupling:

  • Simply position the coupling so it's centered on the shaft.
  • Attach the encoder to the magnetic coupling shaft.
  • Secure the anti-rotation tether arm and electrical connection and installation is complete.

Our Technical Bulletin No. 525 provides a more detailed description and a few tips regarding installation and removal of the Magnetic Coupling.

The magnetized face of the Magnetic Coupling has up to 100 lbs of breakaway force, so it's secure once installed. With through-bore encoders, exact centering is not usually needed due to the flexible anti-rotation mount. However, if more precise centering on the shaft is desired, the coupling has a pilot hole in the center of the magnetic face. Drill a pilot hole on the machine shaft, insert the included steel ball in the coupling and apply to the machine shaft. The coupling will center itself.

The Magnetic Coupling is available in two sizes to accommodate different sized encoders.

  • The larger (stock no. 176282-01) has a 5/8" diameter mounting shaft and is typically used with our Model 25T (2.5" dia. housing).
  • The smaller coupling (stock no. 176409-01) has a 3/8" diameter shaft and is typically used with our Model 260 (2.0" dia. housing).

Here are some of the ways our customers have used the Magnetic Coupling as a handy little problem solver:

  • Temporary installation Allows for use of an encoder for testing or calibration of equipment, with quick, easy installation and removal.
  • End-of-line systems (such as lot code printers, labelers, wrappers) on production lines. This is typical for OEM's or Integrators who arrive at a job site for an installation and need to apply equipment to an existing production line. It may be difficult to predetermine the shaft lengths and diameters where encoder feedback will be required.
  • Potential impact hazard With the coupling's magnetic break-away feature, even a brush with an errant fork lift may not necessarily spell the end for the encoder. If the encoder is moved off the machine shaft, it's quite possible the encoder can simply be repositioned.
  • Limited accessibility If encoder feedback is needed in a confined space, and drilling and tapping the machine shaft requires moving heavy equipment or disassembly, the Magnetic Coupling saves time and money.
  • Cost to drill and tap is not feasible Sometimes the commercial scope of an installation project may not support the expense of drilling, tapping and fabricating a stub shaft. Or, the shaft is on a high-value piece of equipment and drilling may void a warranty. Also, some shaft metals can be very difficult to drill and tap.

While not applicable to every end-of-shaft encoder application, the Magnetic Coupling is a handy tool for machine installers, maintenance teams, system integrators and repair shops to keep in their kit.

Whether we have Accu-Coder magnetic couplings in stock in Boise, Idaho or need to ship direct from Encoder Products Company to any USA cities; Clearwater Tech can get Accu-Coder accessories to you fast and save you some money. Our industrial factory automation supplies distributors warehouse stocks some Accu-Coder shaft coupling enabling us to further assist you in finding the correct Accu-Coder magnetic coupling in the USA, Canada, or Mexico. It will be very helpful if you have the Accu-Coder part numbers ready, then our sales representatives can provide you with a pricing and availability quote for Accucoder shaft coupling that you are looking for in seconds. If you do not have the part numbers for Accu-Coder magnetic couplings, our application engineers will be able to help you figure out the part numbers and get the price quote to you as soon as possible.

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