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igus® provides an online lifetime calculator which calculates wear per km (or mile), calculates the stack-up clearance for your application, a pdf report of your application, as well as other valuable engineering information.  And yes, the liners are easy to replace and offer several ‘quick change’ options. For a video please click here.

igus® has the world’s largest ‘motion plastic’ test lab where we perform over 15,000 tests per year.  For an overview of this and the certifications and approvals please click this link.

The terms "igus", "Apiro", "chainflex", "CFRIP", "conprotect", "CTD", "drylin", "dry-tech", "dryspin", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-skin", "e-spool", "flizz", "ibow", "igear", "iglidur", "igubal", "kineKIT", "manus", "motion plastics", "pikchain", "plastics for longer life", "readychain", "readycable", "ReBeL", "speedigus", "triflex", "robolink", "xirodur", and "xiros" are legally protected trademarks of the igus® GmbH/ Cologne in the Federal Republic of Germany and where applicable in some foreign countries.

Gratings are produced by two methods, ruling and holography. A high-precision ruling engine creates a master grating by burnishing grooves with a diamond tool against a thin coating of evaporated metal applied to a surface. Replication of the master grating enables the production of ruled gratings, which comprise the majority of diffraction gratings used in dispersive spectrometers. These gratings can be blazed for specific wavelengths, generally have high efficiency, and are often used in systems requiring high resolution. Echelle gratings are a type of ruled grating that are coarse, i.e., low groove density, have high-blaze angles, and use high diffraction orders. The virtue of an echelle grating lies in its ability to provide high dispersion and resolution in a compact system design. Overlapping of diffraction orders is an important limitation of echelle gratings requiring some type of order separation typically provided by a prism or another grating. Holographic gratings are created using a sinusoidal interference pattern which is etched into glass. These gratings have lower scatter than ruled gratings, are designed to minimize aberrations, and can have high efficiency for a single plane of polarization. Gratings can be reflective or transmissive, and the surface of a grating can either be planar or concave. Planar gratings generally give higher resolution over a wide wavelength range while concave gratings can function as both a dispersing and focusing element in a spectrometer.

Configure your own linear bearing assembly in just a few steps to your application requirements and parameters.  Easily calculate service life and find the most appropriate linear bearing for your application based on your technical specifications. Once you configure your bearing, download CAD files to use in our free CAD library, request a quote, or add to your cart and checkout.

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The location of both the drive force and payload's center of gravity, as well as load-force, speed, and precision requirements need to be taken into consideration.  Typically drylin® has a clearance range of 0.02-15mm, but we do offer many preloaded or adjustable versions.

What is gratingin Optics

igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsibushi, NUM,Parker, Bosch Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mention in this website. The products offered by igus® are those of igus® GmbH

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Unlike re-circulating ball bearing guides that roll, drylin® linear bearings & assemblies are engineered to slide. Sliding elements made of high-performance, self-lubricating plastics allow the linear bearing assembly to be maintenance-free and resistant to external influences. The special materials also allow the linear bearings to run extremely quietly. By making the switch to drylin® linear bearings, costs are also reduced by up to 40%.  In addition to these benefits, igus® products offer fast shipping times within 24hrs, online service-life calculators and tools for nearly all product lines, and tested reliability.

igus® offers linear rails, pillow blocks and carriages. We offer shaft options in several different material options: steel, stainless and nonferrous options like hard/clear anodized aluminum and carbon fiber, in both inch and metric sizes. Our linear slide bearings , pillow block and carriage options include stainless steel aluminum and diecast zinc.

How to pronouncegrating

Yes, we cut rails in-house to an overall +/-2mm length tolerance on a chop saw.  The rails are cut to the desired length with the holes symmetrically placed.  We also carry no-hole rail and are able to customize the parts based on your needs—simply provide us with a drawing and we are happy to help. We also offer a linear shaft configurator which provides both 2D and 3D CAD files, assigns a part number, and allows you to order online.

By fixing the incidence angle α in the grating equation and differentiating with respect to λ, the angular dispersion (D) or change in diffraction angle per unit wavelength can be determined as:

For additional insights into photonics topics like this, download our free MKS Instruments Handbook: Principles & Applications in Photonics Technologies

For an easy and painless switch over to drylin® linear bearings & assemblies, drylin® R, T, and W have many bearings that are 1:1 replaceable with competitor systems.

When two linear guides are mounted in parallel, with bearings on each guide connected by a plate or carriage, precautions must be taken to prevent binding, or “jerking” motion that can be caused by misalignment between the rails, uneven loads on each bearing, or differences in manufacturing tolerances between rails and bearings. Here are some helpful tips for aligning igus® rails.

drylin® rails and slides offer a significant amount of noise reduction compared to recirculation ball bearing systems. In most cases drylin® plastic bearings technology is 4 times quieter (-20b) compared to metal. This is due to our maintenance free sliding elements made of high-performance, self-lubricating plastics. For more information, please click here.

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Since drylin® is self-lubricating and does not require oil or grease they are ideal in dirty, dusty environments. Since drylin® is based on corrosion-resistant bearing liners and either anodized aluminum or 300-series stainless rails/shafts they are commonly used in splash-water, underwater, saltwater and chemical washdown applications.  We have passed saltwater testing in several major boat manufacturer’s test labs.

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Yes, in most cases igus® products can be easily retrofitted to replace up and running systems. Our drylin® T and R are often used as a direct replacement recirculating ball bearings systems, and even drylin® W has a cross-reference option.

drylin® floating bearings offer advantages for nearly all applications. They offer an easier assembly, less adjustment necessary and lower wear and drive force by elimination of misalignment forces on the bearings. To help prevent binding simply mount the linear guides with one guide fixed and the other guide floating. This allows for lower friction-forces, lower wear, as well as being easier to assemble.

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Depending on the size we stock rails in lengths between 2000mm – 4000mm.  Most sizes can be joined together.  For more information please click here.

Yes, igus® has options for curved rails in full circle, half circle and quadrant. We also have options in  convex and concave. Additional information can be found here

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