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Ruland manufactures face mount shaft collars with precise face to bore perpendicularity (TIR ≤ .002" or 0.05mm), which is critical when they are being mounted directly to another component. They are available in bore sizes ranging from 3/8” to 3” (10mm to 80mm).
This Ruland bundle combines a one or two-piece shaft collar with a clamping lever to make a quick release shaft collar. Bore sizes range from 3/8” to 1 ½” and 11mm to 40mm. Collars are available in anodized aluminum, plain aluminum, 303 stainless steel, 316 stainless steel, steel, plastic, and zinc..
Encoder shaft couplings and collars from Ruland are designed to meet the varied and demanding needs presented by encoders. Encoders are a component designed to pair with servo motors to resolve position, speed, and other factors to keep the application performing as expected. There are many different types of encoders such as absolute, incremental, and optical. With so many types of encoders available, they can serve virtually any need a system designer requires. This presents a challenge when it comes to selecting components such as shaft collars and couplings. Ruland offers the widest standard range of alternatives for system designers to allow them to work with off the shelf components that can be quickly sourced.
Ruland 4-beam couplings are manufactured from a single piece of aluminum or stainless steel with multiple spiral (helical) cuts allowing for a zero-backlash encoder coupling with higher accuracy and better overall misalignment capabilities than traditional single beam couplings. They are designed with extra flexibility to provide reduced bearing loads, which is critical in encoders which have small sensitive bearings. Ruland 4-beam couplings have a balanced design for reduced vibration at speeds up to 6,000 RPM. Ruland manufactures two series of 4-beam couplings, P and MW, giving designers a variety of performance and dimensional characteristics to choose from. Ruland manufactures 4-beam couplings in our Marlborough, Massachusetts factory with bore sizes ranging from 3/32” to 1/2” or 3mm to 12mm.
Controlflex couplings are a zero-backlash design comprised of two aluminum hubs mated by one or two center inserts allowing for a highly customizable coupling that can match the performance requirements of most encoder systems. Controlflex couplings are lightweight, have low inertia, and have a balanced design for reduced vibration at speeds up to 25,000 RPM. They can have a wide range of bore sizes in a given outer diameter with ratios of large to small bore over 3:1, which is particularly useful in encoders where the motor shaft can be more than twice the size than that of the encoder. The inserts are designed to concentrate forces onto their flexible limbs to reduce bearing loads on sensitive bearings such as those found in encoders. Single and double insert styles are available allowing the designer to select the length and performance characteristics that best meet system requirements. Controlflex couplings are manufactured by Schmidt Kupplung in Wolfenbüttel, Germany and are widely stocked by Ruland for worldwide fulfillment. Bore sizes range from 1/8” to 1-1/2” or 3mm to 40mm.
Ruland bellows couplings are comprised of two anodized aluminum and a stainless steel bellows creating a low inertia zero-backlash coupling that is well suited for speeds up to 10,000 RPM. The thin wall of the bellows allows the coupling to remain flexible under misalignment conditions while maintaining rigidity under torsional loads. They are the most torsionally stiff flexible coupling Ruland offers making them a good fit for encoders that require the highest level of resolution. When designers select a bellows coupling for an encoder they must control for misalignment. While bellows couplings to accommodate all forms of misalignment, they are not as flexible as beam or controlflex types. Bellows couplings are manufactured in our Marlborough, Massachusetts factory with bore sizes ranging from 1/8” to 1” or 3mm to 25mm.
Ruland thin line shaft collars are designed for the narrow shafts commonly found on hollow bore encoders. Encoder shaft collars from Ruland have reduced width, outer diameter, and weights while maintaining the traditional benefits of Ruland clamp style shaft collars including high holding power, precise face to bore perpendicularity, and hardware that tests beyond DIN 912 12.9 standards. Hollow bore encoders usually require a clamping shaft collar to secure the connection between the male motor shaft and female encoder shaft. Designers benefit from Ruland thin line shaft collars having bore sizes with multiple outer diameter and widths to choose from allowing them to match system needs with shaft collar capabilities. Two-piece styles have a balanced design for high speed applications. Encoder shaft collars are available in aluminum for lightweight and high holding power and 303 stainless steel for corrosion resistance. They are manufactured in our Marlborough, Massachusetts factory in bore sizes ranging from 3/16” to 1-1/2” or 5mm to 40mm.
Commitment to customer service, on-time delivery, product and engineering support.
Products are carefully made in our Marlborough, MA factory with large stocks for same day shipment.
Proprietary manufacturing processes have been developed over 75 years to obtain consistent performance and finefinishes.
Raw materials are sourced from select North American mills to ensure product consistency.
Hardware is carefully selected and tested to ensure maximum torque capabilities.
All products are RoHS3 and REACH compliant.
As a service to our customers, we offer our vast manufacturing experience and talents to meet special needs with custom parts. Our in-house engineering team has extensive experience designing and custom engineering solutions to meet your requirements. If you do not see what you are looking for in our standard line, please inquire about custom options.