SCHNEEBERGER LINEAR GUIDE WAYS

	MR (Click here for details) High rigidity, great dynamic and static load carring capacity, outstanding running smoothness and the total enclosure of the carriage are the main features of the MONORAIL guideway. These properties result in higher machining rates while enhancing geometrical accuracy and surface quality of the machined workpieces. Our highly rigid MONORAIL provides improved vibration behavior, smaller vibration amplitudes and thus extends tool life. SCHNEEBERGER has systematically applied its many years of experience in the design, production and use of roller-type anti-friction guideways in the development of the MONORAIL. Consequently the MONORAIL MR is a cost-effective anti-friction guideway which meets the challenge presented by modern machine design.
	BM (Click here for details) SCHNEEBERGER's MONORAIL BM ball guideway features excellent dynamic properties and many commercil benefits. Designed with a small number of cleverly arranged components, it provides for excellent running properties due to the small number of transitions in the ball tracks, which lead to very quiet running, low pulsation and low friction as well as high travel speeds. The use of a trapezoidal rail section results in an extremely rigid guideway coupled with a substantial reduction in servicing time as additional wipers can be changed without dismantling the carriage. Complete sealing of the carriage guarantees maximum reliability coupled with a long service life.
	BZ SCHNEEBERGER's  MONORAIL BZ systems are high-precision linear guide systems with integral rack drive, based the company's proven MONORAIL BM profile guideways with balls. The benefits resulting from the integration of a profile guideway and an extremly precise rack drive mainly come into their own in the handling and automation industries, in laser and water-jet cutting tools as well as in woodworking machines. Outlay on the production of beds, the installation and alignment of  the guideway and gearing are substantially reduced. Single piece rail systems are available up to length of 6 metres. The design of the MONORAIL  BZ provides for superb operating characteristics, high load-bearing capacity and rigidity together with a long service life thanks to the use of the tried-and-tested MONORAIL BM profile guideway and to the high transmittable forces, smooth running and optimum positioning accuracy offered by ground, hardened and precise helical gearing of superlative quality.
	AMSA 3A The MONORAIL AMSA 3A is an integrated magneto-resistive measuring system based on the MONORAIL MR roller profile guideway with analog voltage interface. This results in the provision of a compact axis with linear measurement and guidance specially for machine tool applications. No additional installation and adjustment of the measuring system is required, which provides savings in the design, manufacture and servicing of x machines. The robust housing has a complete wiper system consisting of longitudinal and cross wipers that ensure that the measuring system is extremely well protected. The AMSA 3A version has an analog voltage interface of 1 Vss for connection to all standard control systems.
	AMSD 3A MONORAIL AMSD 3A is an integrated magneto-resistive measuring system based on the MONORAIL MR profile guideway with an incremental, digit interface. The AMSA 3A is starting point for this product. The Profile rails are thus identical and are compatible with both AMSA 3A and AMSD 3A.  The AMSD 3A version has an incremental, digital interface and a range of reading  head options that permit different resolutions and allow the system to be adapted to control systems with different input frequencies.
	AMSA 4A MONORAIL AMSA  4A is an integrated  magneto-resistive measuring system based on the MONORAIL BM profile ball guideway with an analog voltage interface.  These products are preferred use in applications that make major demands on traveling speed and accuracy as well as on their resistance to acceleration and vibration. No additional assembly or adjustment of the measuring system is required, which is reflected by cost savings in machine design, manufacture and servicing.  The accuracy and process reliability of the machine are also improved.  The study housing for the read-head has a complete wiper system consisting of longitudinal and cross wipers, which provide optimum protection for the measuring system.  The AMSA 4A version has an analog voltage interface of 1 Vss for connection to all standard control systems.
	AMSD 4A The MONORAIL AMSD 4A is an integrated magneto-resistive measuring system based on the MONORAIL BM Profils guideway with an incremental, digital interface.  The AMSA 4A is the starting point for this product.  The Section rails are thus indentical and are compatible with both AMSA 4A.  The  AMSD 4A version has an incremental, digital interface and a range of  reading options that permit different resolutions and allow the system to be adapted to control systems with different input frequencies.
	O-geometry Large internal spacings of the load carrying surfaces are implemented with what is called an O-arrangement of the guideway.  In conjunction with roller tracks that are offset by  900, this achieves a uniform and high absorption of forces from all direction and provides high moment rigidity.
	ROLLER with a convex ‘barrel’ Profile Linear Guideways have a significant influence on the overall rigidity of a machine tool.  With roller MONORAIL MR, the demonstrably high degree of rigidity is achieved by using rollers, with a convex profile, as rolling elements and the optimized cross-sections of the carriage and the rail. Compared with a ball guide, a roller guide has a flat and much larger contact area, which results in a far greater load carrying capacity.The barrel shape enables the contact surface to adjust to the particular load and provides a smooth transition from the load zone to the unloaded recirculation area.  The results in a significant reduction in wear since it avoids edge loading coupled with minimum roller friction.
	Ball with 2 point contact The MONORAIL BM is a modem, 4 row ball guide with O-geomety.  Even when preloaded and under load, a ball that is the load zone only contacts the track contour of the rail and the carriage at tow diametrically opposed points.  Compared to a guide with 4-point contact,  the precision fit of the tracks to the ball provides significantly greater load carrying capacity.  Friction is minimised as the balls roll more and less without any differential slip, which results in smooth, even running.
	Trapezoidal rail profile The trapezoidal rail profile meant it was possible to optimize the carriage cross sections and the connection of the base surface of the rail to the sub-structure to achieve the highest possible rigidity.  This rail profile enables easy servicing since additional wipers can be replaced directly on the rail without any complicated removal of the carriage.
	In one piece up to 6 meters long SCHNEEBERGER offers guiderails for all its products in single piece lengths of up to six meters.  As a result, fewer butt joints between rails are required on long guideways.  This not only simplifies assembly work, but also offers improved accuracy and extends the service life of the system
	Through – hardened carriages The steel body of the carriages is a critical element if a machine is to have long service life with a constant level of precision.  In order to satisfy these high demands even under extreme loads and without any plastic deformation of the carriage throughout its entire period of use.  SCHNEEBERGER uses high-grade bearing steels in which not just the running surfaces, but the complete carriage body are hardened.  Even when subjected to loads exceeding their recommended levels, MONORAIL carriages maintain their specifications as no plastic deformation can occur.
	6 Attachment holes per Carriage When a carriage is subjected to tensile forces,  the rigidity achieved is largely dependent on the way that it is connected to its surrounding structure.  In order to achieve the maximum degree of rigidity, all SCHNEEBERGER carriages have six threaded fixing holes in the top of the carriage.
	Unique Running Characteristics Particular attention was focused on the run-in area of the rollers from the unloaded to the loaded zone.  This area was geometrically balanced to the provide very smooth operation, i.e. minimum travel pulsation, pitch movement and noise for both low and high speed motion.
	Complete sealing MONORAIL Carriages are equipped as standard with twin-lipped cross wipers on the ends and top and bottom longitudinal wipers. Together with a additional sealing of the gaps between the front plate and the steel body, these provide an exceptionally efficient sealing system.  The ingress of dirt is therefore effectively prevented and lubrication losses are reduced to a minimum, which results in a significant increase in service life.  Correct function of the wipers is improved even further by the smooth, ground surface of all sides of the rail.  SCHNEEBERGER also offers various solutions to close the rail fixing holes perfectly flush.
	Rolling element recirculation parts made of synthetic material The return passage of the rolling elements has a substantial influence on the running properties of the carriage, for this reason, all SCHNEEBERGER products are fitted with synthetic recirculation parts, Apart from the reduction in noise, the synthetic components have been designed to form an additional reservoir of lubricants.  The additional lubricants can substantially extend the service life of the carriage.
	Versalite Lubrication Connection Carriages have a range of lubrication connections (on both sides on the front face, at the sides and on top) that can be prepared for connection to a lubrication supply in line with customers specifications.  This allows the connection of the lubrication supply to be connected in the best way to suit the type of lubrication and the specific installation involved.  Where oil lubrication for special installation positions is required, both sides of the carriage can also be independently supplied with lubricants.
	INTEGRAL RACKS Rack systems offer a high-grade gear rack that is integrated into the guiderail. Single piece rail lengths of  6 meters and the possibility to butt joint rails means very long traverse lengths can be achieved with a high degree of accuracy.  Integral construction reduces the amount of manufacturing, assembly and logistics compared with a system with a separate rack, which result in substantial cost savings.It is now possible to construct a machine axis, that used to require three precision support surfaces with only two.  It is no longer necessary to do any time consuming alignment work between the guides system and the rack.
	Integrated Linear Scales Combining a high-precision linear encoder with a MONORAIL guide rail results in an integreated measuring system that is simple to install without the need for any separate assembly or adjustment work.  This Provides cost-savings in the design, manufacture and maintenance of equipment.  With its integrated systems, SCHNEEBERGER supplies solutions that offer a substantial reduction in complexity when constructing machine axes with direct linear scale system
	Magneto-Resistive Measuring Principle The sensor is based on specially adapted magneto-resistive measuring processs. If any relative movement occurs between the sensor and measuring scale,  the change in an easily measurable change in electrical resistance.  Any interference caused by temperature, superimposed magnetic fields,  displacement and ageing in minimised due to the bridge circuit.  The sensing head works continuously, which ensures that the function of the sensor is not affected by any particles.  The sensing process operates so well that no adjustment work is necessary after service exchange of a measuring head.
	Position measurement close to the process A good thermal connection between the measuring system and the bed of the machine is provided, firstly, by the extensive connection of the guiderail to the integral measuring scale and, secondly, by the rigid attachment of the guiderail to the bed of the machine.  The benefit of this is that changes in the temperature of the bed of the machine are transferred directly to the measuring system.  The good thermal interconnection between the measuring standard,  the guiderail and thus the bed of the machine means that these machines do not require any reference points or temperature sensors to achieve excellent process stability.
	Thermal expansion like steel The magnetic measuring scales is installed in a groove in the rail section.  Use of a specially adapted ferromagnetic material ensures that the longitudinal expansion of the scale, caused by thermal influences, is identical to the expansion of the steel bed of a machine.The measuring standard is firmly attached at both ends to the guide rail and has exactly the same rate of expansion as the guide rail.  No compensation for temperature is therefore required when machining steel parts