The MR rail system is especially equipped for harsh environments where contamination is a problem. Most bearing systems utilize a groove that a roller or ball travel within. These grooves capture and hold debris that eventually cause the bearing to fail. The convex raceway of the MR Series provides a place for debris and other contaminates to be pushed aside by the rollers. this feature enables the MR Series to function in environments where other bearings quickly fail.
High Quality Black Hardening Treatment Anti-Corrosion Technology
MR Series Linear Rails
MR Series Rails are made in 3 sizes 18mm, 28mm and 43mm with two types of mounting holes: MR .. L with counterbored mounting holes for special low head TORX mounting screws that are provided with the rail. MR .. S with countersunk mounting holes for UNI-standard ISO5933 fasteners. The rail has a “C” shaped cross-section with interior, convex raceways. The convex raceways are polished for smooth, low noise motion. The interior raceways are protected from accidental bumps and other damages, that can spoil the surface. The shape also protects the rollers from similar types of damages.
MR Series Sliders
MR Series Sliders are available with either 3 or 5 rollers. For the 3 roller version, the first and third roller are fixed, concentric rollers that run on the same raceway. The second roller is eccentric and runs on the opposite roller. The eccentric feature is used to adjust the slider preload in the rail. For the 5 roller version, the two lateral and the central roller are fixed, and run on the same raceway. The second and fourth roller are eccentric and run on the opposite raceway. Because one raceway contacts more rollers than the other raceway, the sliders have a preferred loading direction. The sliders are marked with two small circular notches indicating the direction witht he most rollers and direction of preferred loading. Care during assembly is required to ensure the maximum load capacity of the system is achieved.
Robust elastomer raceway wipers are fitted at both ends of the slider to protect the rollers and keep the raceways clean. The wipers incorporate oil-impregnated felt pads to keep the points of contact between raceway and roller properly lubricated, even for the lifetime of the rail. Wipers are held in place by a simple clip and can be removed and replaced easily.
Slider Series: RV, RA, RP, RU
R. Slider Series are made of zinc plated steel with mounting holes parallel to the roller axis and perpendicular to the direction of preferred loading. The sliders have sealed rollers, axial wipers, and longitudinal seals for optimal protection of the internal parts and a sealing strip to prevent accidental tampering of the fixed rollers. The R Series Sliders are available in 3 sizes and with either 3 or 5 rollers
Slider Series: RVT, RAT, RPT, RFT
R.T Slider Series are made of zinc plated steel with mounting holes perpendicular to the roller axis and parallel with the direction of preferred loading. The sliders have sealed rollers and axial wipers for protection of the internal parts. The R.T Series Sliders are available in 2 sizes and with either 3 or 5 rollers.
Slider Series: RVS, RAS, RPS, RFS
R.S Slider Series have a very slim body to obtain the most compact slider possible, without sacrificing performance. They also offer both threaded and through hole mounting options. The standard slider body is made from zinc plated steel bu is also available in all stainless steel construction for higher corrosion resistance. The R.S Series Sliders are available in 2 sizes, 2 materials, and with either 3, 4 or 5 rollers.
By utilizing all guiding rolelrs RV, RTV, and RSV sliders are obtained. They are fully constrained and will support loads and moments in all directions with the greatest capacity in the radial direction.
By utilizing all floating rollers to construct RP, RSP, and RTP sliders are obtained. These sliders are able to carry full load in the radial direction and also float and rotate a small amount in the rail without affecting the preload of quality of the movement and without binding. Floating sliders are used in 2 rail systems to absorb parallelism errors in the mounting surfaces. For size 43 sliders, RF, RFT, and FRS sliders are available which allow even greater axial displacement.
By mixing guiding and floating rollers to construct RA, RSA, and RTA sliders are obtained. These sliders are able to carry full load in the radial direction and also rotate slightly without affecting the preload or quality of movement. These sliders also retain the ability to guide the payload as it travels. Rotating sliders are used in 2 rail systems to absorb angular errors in the mounting surfaces, that cause traditional bearings to bind.
By combining a floating and rotating slider together in a 2 rail system, the MR rail system can carry and guide a full payload while compensating for parallelism and angular errors in the rail mounting surfaces. These types of errors are often found when mounting to welded frames, structural aluminum frames, sheet metal structures, etc. The self alignment capability can eliminate the need to machine the rail munting surfaces.
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