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Clamp disks & rings

Developed to lock connecting machine components to each other by hydraulic pressure, Amdisk clamp disks and clamp rings are made from high strength bronze in which a Viton seal is vulcanized, allowing them to be used with any high-pressure hydraulic fluid. They are connected to a pressure port to allow hydraulic pressure up to 4000 psi. The holding force of these units depends upon the amount the amount of hydraulic pressure applied. The clamp rings are supplied with an alloy steel housing with its own pressure port. The center hole allows drawbolt or rod to provide direct axial pull or clamping force without twisting the rod. Because of lip seal elasticity, the bronze clamp disk retracts slightly when hydraulic pressure is released. The seal does not slide into the bore, virtually eliminating wear.

Advanced Machine & Engineering Co, Rockford, IL.

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Collet closers

Economical 5C pull-back style collet closers are offered with threaded nose. The closer accepts standard 5C collets up to 1-1/16-in. dia., 5C step chucks for parts up to 6-in. dia., and expanding nose 5C collets for ID holding. Operating at a max. 150 psi air or 750 psi hydraulic, the drawtube force is 7.5X line pressure, yielding a theoretical clamping force of 1688 lbs air and 8438 lbs hydraulic.

Lexair Inc, Lexington, KY.

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Painted flange coupling

The painted S-flex coupling protects the flange from salt spray and other chemicals, and is easier to handle than traditional black-oxide components. Five models are made from die cast zinc or cast iron, in sizes ranging from 3/8 to 5½ in. Typically matched with a sleeve, these are available in EPDM rubber, Neoprene or Hytrel, depending on application specifications.

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Spline-type couplings

Series A 5Z28M (metric) and A 5Z28- (inch) spline-type flexible couplings are designed to fit 3 to 14 mm and ¼- to 3/8-in. dia. shafts. Electrically insulated, they require no lubrication, and dampen shock and vibration. Misalignment compensation is 2 degrees with a maximum parallel offset range of 0.007 in. (0.2 mm) and temperature operating range of –4° to 140°F.

Stock Drive Products, New Hyde Park, NY.

 www.rsleads.com/308df-159

Clutch

The MDC-series permanent magnet synchronous clutch transmits torque from a motor to a flexible fixture. Several independent fixtures can index their way over to a single motor with a non-contact magnetic coupling. This style uses samarium cobalt permanent magnets assembled on two discs, while keyless clamps attach the discs onto the respective shafts. The clutch has no touching or wearing components.

Rimtec Corp, Addison, IL.

 www.rsleads.com/308df-160

Miniature disc couplings

Comprised of two anodized aluminum hubs, a center spacer (double disc style only) and multiple flat stainless steel disc springs to transmit torque, Discflex miniature disc couplings allow angular and parallel misalignment between shafts while remaining rigid under torque loads. Speed capability is up to 10,000 rpm and standard and custom sizes are available from 0.125- to 1.25-in. OD.

Ruland Mfg Co Inc, Watertown, MA.

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Safety mount

The Micro AssemblySafe mechanical pivot point moves in the direction of a robot crash to minimize recovery time and robot end effector damage. The low-profile compressible safety mount is only 1.3-in. tall and weighs 0.36 lbs, handling a maximum force of 162 lbs and maximum moment of 83 in.-lbs. Reliability is 0.001 in. and a clean room version is available.

Robohand Inc, Monroe, CT.

 www.rsleads.com/308df-162

Positioning collars

The Solution series of micro-adjustable positioning collars consists of an assembly of two knurled collars that clamp directly to a shaft, and features a male-female connecting hub that provides a ½-in. adjustment range. Designed for accurate fine-tune positioning, the collars connect using 40 pitch threads that operate smoothly, each traveling 0.025-in. per turn. Nine standard sizes range from ¼- to 1 ½-in. ID.

Stafford Mfg, Woburn, MA.

 www.rsleads.com/308df-163

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