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Mountable shaft collars with face holes are designed to mate directly with components such as sprockets, pulleys, and metallic plates. Ruland manufactures them with drilled holes for mounting flexibility or threaded holes for the most secure connection between the collar and mated component. They are offered in steel, aluminum, and 303 stainless steel in bore sizes ranging from 3/8” to 2” and 10mm to 50mm.
Clamp style universal joints improve over set screw style because they do not mar the shaft, offer infinite adjustability, and can be used on all shaft types. Ruland is the only North American supplier of clamp style universal joints and manufactures the clamp feature, bores, and keyways in our advanced manufacturing facility in Marlborough, MA USA. They are available in sizes from 1/4" to 1 1/4” in steel for high strength and stainless steel for corrosion resistance.
Location: Dallas, TX Answer:When helping the customer I realized what the problem was. Our longest Controlflex under a 2” outer diameter is 1.496” and it didn’t meet the envelope requirement. I recommended a beam coupling which would meet the envelope requirement and would fit the performance requirements of the application. This is a common issue with encoders. They are designed independent of the servo motor so each is a little bit different and that creates a wide variety in lengths. Something like a Controlflex is great for compact environments but if you need a little more length a beam coupling or an oldham coupling might be a better fit. When you use other coupling styles it does change the performance within the application, so you need to be sure that the specs of the coupling match the requirements of the application.