Zero Maintenance Bearings– New Option For Schmidt Offset Couplings

Zero maintenance bearings are now available as an option for Schmidt Offset couplings from Zero-Max. This new coupling feature eliminates periodic coupling lubrication and the resulting system downtime.

Schmidt Offset couplings deliver precision for parallel offset shafts. They transmit constant angular velocity and torque in a range of parallel shaft misalignments. They are used in a range of machine applications including printing, embossing, paper converting, pharmaceutical, and automated assembly systems.

The new Schmidt sealed bearing coupling feature incorporates needle bearings with internal micro-poly lubrication. There are no lube fittings making for a cleaner coupling setup. Compact in design, Schmidt Offset couplings with the new zero maintenance bearing option keep out contaminants and foreign matter, enabling the couplings to be used in less than ideal operating environments.

Schmidt Offset couplings are designed to handle high amounts of parallel offset up to 17 in. and are available with torque capacities up to 459,000 in.-lbs. They impose no side loads on shafts or bearings and eliminate radial shaft vibrations.

Zero-Max
www.zero-max.com

Explosion proof couplings

Flexible couplings are a critical component for applications involving potentially explosive materials found in automotive paint and cleaning stations, chemical plants, and powder mixing areas.  A lack of radially flexible elements in shaft linkage can result in high radial loads on shaft bearings, eventually leading to heat generation and bearing failure, making flexible shaft couplings essential to machine drive design in these cases.  Even more critical is that the potential for sparks must be eliminated.  For use in explosive environments R+W has developed a full range of ATEX certified “explosion proof” couplings in accordance with the European directives, ATEX 95 and ATEX 137.

These special couplings are precision machined with a thermally and chemically stable, wear resistant, polyurethane insert press fit between the two for zero backlash.  A smooth fit between the insert and the hubs helps the insert to compensate for lateral, angular and axial shaft misalignment.  The insert is impregnated with graphite, giving it electrically conductive properties, eliminating the potential for any charges arcing from one hub to the other.  Official serialized markings including the part number are required by the directive and are clearly visible on each unit.

These precision couplings are available in a variety of mounting configurations, and can include torque overload protection.  There are nine total sizes ranging from torque ratings of 2 – 2150 Nm (17 to 19,000 in-lbs).  Both English and metric bore diameters are available in a range from 3 – 80 mm (1/8 to 3.125 in.) with or without keyways.

R+W America
www.rw-america.com

Misumi Now Offers Comprehensive Line Of Couplings

MISUMI Coupling types include high precision Single Disc and Double Disc Clamping models, many of which may be used with servomotors.  Also offered are Oldham, Slit and N Couplings, as well as Jaw, Sleeved, Bellows, and Resin types, in a variety of sizes and configurations.

The SCXW is a Double Disc type precision disc clamping coupling with high torque but no backlash.  Its torsional rigidity is up to 26% higher than conventional (standard) disc clamping couplings. It suits applications requiring fast positioning precision.  All the bolts are trivalent chromate plated and suitable for use in clean environments.

The MFJGWK is available as a high rigid Oldham coupling, set screw type. The MFJCGWK is a high rigid Oldham coupling, clamping type.  Both products feature an aluminum bronze spacer and have a keyed bore.  These couplings have allowable torque 2X higher compared to resin spacers.

The SCOC is a short Oldham coupling, clamping/spacer type. This space-saving version works with miniature devices because it is 17% shorter than conventional types.

Most MISUMI Couplings ship in six days, with the exception of the new High Rigid Oldham Couplings, which ship in eight days.  Some couplings offer optional express shipping for faster delivery.

MISUMI USA, Inc.
Http://us.misumi-ec.com

Hybrid Coupling Combines Fluid, Electronics, Tubing and Cable

The Hybrid Connector integrates fluidics and electronics into a single connection point. Combining dual flow paths into an integral hose assembly eliminates the need for multiple connections and simplifies the user interface between modular tools, umbilicals or hand pieces and a device. Integrating high-cycle electrical contacts directly into the connector eliminates the need for a separate power cable to remote tools.

The Hybrid Connector can simplify connections in a range of applications including diagnostic equipment, surgical tools, analytical instrumentation and hospital beds. The easy-to-use connector also can be customized for specific customer applications.

Colder Products Co.
www.colder.com

2009 BK Series Catalog from R+W

Stainless steel bellows couplings have grown more prevalent, driving the development of a wide variety of mounting configurations, wall thicknesses, lengths, torque ratings, etc.

The 2009 BK series catalog from R+W represents the latest collection of standard bellows coupling designs for applications requiring torque ratings from 15 Nm – 10,000 Nm. Flanges, shafts, hollow bores and nearly any other mechanical interface are accommodated.

R+W America
www.rw-america.com

Products by Servometer

Servometer® / PMG, LLC designs and manufactures  electrodeposited nickel bellows, bellows assemblies, flexible shaft couplings, electrical contacts and  electroforms.

The company offers miniature nickel alloy metal bellows as small as .020 in. (.5 mm) in diameter. They are seamless and non-porous, resisting dust, dirt and moisture that cause contamination in critical applications. Servometer bellows are leak tight to 1 x 10-9 std. cc/sec., and can be designed for “infinite” life expectancy (100 x 106 cycles).
Also, the company’s line of bellows-type flexible shaft couplings have a torque range from 1.4 Ncm to 198 Ncm. Outside diameters range from .252 in. (6.4 mm) to 2.40 in. (61 mm) and overall lengths from .5 in. (12.7 mm) to 2.44 in. (62 mm). Larger sizes and greater torque capabilities are available on a custom basis.

Servometer self-aligning spring contacts  feature negligible insertion and inductance loss. They are well-suited for repetitive connect and disconnect. Outside diameters in stock range from .037 in. (1 mm) to .245 in. (6.22 mm). Custom contacts are offered with bellows diameters as small as .020 in. (.5 mm).

The company’s electroforms are suitable for  unusual shapes, close tolerances, high strength and ultra-thin walls. It can also withstand temperatures as low as -423° F. Diameters range from .020 in. (.5 mm) to 9 in. (229 mm). Surface micro-finishes as fine as 4 R.M.S. are also available.

Servometer
www.servometer.com

Ruland and Belden Start Joint Venture in Germany

Ruland Manufacturing Co. Inc. and Belden Inc. have started a joint venture in Europe. The company, PTMotion GmbH, has been operational since September 2009, and is headquartered in Berlin, Germany. The new company is headed by Managing Director Ralf Gabriel, a long-time sales engineer for Belden in Germany. He is assisted by Sales Engineer Sebastian Recke.

PTMotion GmbH
www.ptmotion.de

Belden Inc.
www.beldenuniversal.com

Ruland Manufacturing Co. Inc.
www.ruland.com

GERWAH® Product Line

The GERWAH® line of products consists of magnetic couplings, metal bellows couplings, servo-insert couplings, line shafts, RING-flex® couplings and safety couplings. These couplings are available in a range of sizes and torque capacities to 3,800 lb-ft. The low mass of the lightweight construction helps increase machine performance and reduce energy costs.

Ringfeder Power Transmission USA Corporation markets a range of power transmission components and keyless shaft/hub technology.  Other power transmission products include shock absorbing devices, flexible elastomeric couplings, flexible disc couplings and torque limiters along with other specialty and custom made products.

RINGFEDER

www.ringfeder.com

Elastomer couplings with higher torque handling capacity

The growing popularity of curved jaw (elastomer) style couplings for precision applications has driven the need for couplings that handle more than the traditional torque capacity of 2,150 Nm up to a maximum torque of 25,000 Nm.

Available with split clamping collars or keyway and set screw connections, the three new body sizes allow for backlash free, vibration damping power transmission, paired with strong torque density. Dual flexture and jack shaft versions are also available for spanning longer distances and compensating for larger misalignments. Unlike the pre-existing range of R+W elastomer couplings, which use a single spider element between the new hubs, the new larger sizes will use individual vibration damping compensation elements to fit between each mating set of coupling teeth. These couplings are available in English and metric bore diameters up to 170 mm.
R+W America
www.rw-america.com

Shaft collars and couplings for solar power installations

Ruland Manufacturing Co., Inc. offers a selection of shaft collars and couplings for use in solar power generation installations. Specifically designed for harsh environments, these shaft collars and couplings handle the high temperature, salt spray, wind, moisture and airborne contaminants found around solar power generation facilities.

Collars are available in a variety of zinc-plated steel, aluminum and stainless steel in both 303 and 316 grades. A wide selection of standard sizes for one and two-piece designs in clamp and set screw styles is available in both inch and metric dimensions. Custom solutions can be made to order. All Ruland products are RoHS and REACH compliant.

Ruland Manufacturing Co., Inc.
www.ruland.com

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