PI 088-13 Lohr am Main, 2013-09-11

Smooth transition for highest precision

New Roller Rail System RSHP

New Roller Rail System RSHP from Rexroth: Low-pulsation loading and extended lubrication intervals.

Precise cutting machining with high surface quality: Rexroth helps operators of machine tools meet this requirement with the new generation of RSHP Roller Rail Systems. The newly developed and patented entry zone of the runner blocks reduces pulsation in the transition to maximum force, thus allowing even higher precision in production. In addition, Rexroth employs a new lubrication and sealing concept, which extends lubrication intervals by 20 percent and reduces the variety of variants by two thirds. RSHP fit seamlessly into the interchangeability concept, in which users can freely combine runner blocks and profiled rails of the same size.

Especially in the field of machine tools, the demands made on precision in machining have been increasing for many years. Machine manufacturers can now reach the required accuracies in the order of microns even more reliably with the new Roller Rail System High Precision (RSHP) from Rexroth. The new development of the entry zone with a joined steel insert loads the cylindrical rollers according to the harmonic bending line. Due to this, the runner block reaches the maximum load at the transition to the load zone very smoothly. The result: Significantly reduced pulsation, which ensures low-vibration machining and therefore improves the quality and surface quality of the workpieces.

In addition, Rexroth implemented a completely new universal lubrication concept, which extends the lubrication intervals by about 20 percent while minimizing lubricant quantities. Resistance-optimized lubrication channels distribute the lubricant in precise doses. In the case of overloading, bypass channels transfer the lubricant, thus protecting the mechanical system.

Thanks to the universal lubrication system, the machine manufacturer can use one runner block for all applications. This reduces the variety of variants by two thirds and allows downsizing of the inventory. With all Roller Rail Systems from Rexroth users can freely combine rails and runner blocks of the same size. The new Roller Rail Runner Blocks RSHP can also be installed on readily assembled profiled rails from Rexroth.

To protect the bearings in cutting production against contamination, the modular sealing concept comprises a double-lip seal at the ends. In the case of extreme external contamination, an additional seal made of fluororubber protects the bearings, and for coarse chips, a sheet metal wiper is provided. A longitudinal seal in the interior of the runner block reduces the discharge of lubricant. A threaded metal plate at the front of the runner block RSHP provides protection against coarse dirt and chips. The lube fittings are now fitted in metal and do not break out when the system is being lubricated.

For highly precise positioning, the new runner blocks RSHP can also be equipped with the integrated measuring system IMS-I. This inductive measuring system achieves comparable accuracies like high-precision glass scales, but does not require additional installation space. The IMS-I operates contactless and wear-free, thus increasing the availability in the long run. Apart from machine tools, Roller Rail Systems are also used in plastics machinery and presses as well as in other heavy-duty applications.

Economical, precise, safe, and energy efficient: drive and control technology from Bosch Rexroth moves machines and systems of any size. The company bundles global application experience in the market segments of Mobile Applications, Machinery Applications and Engineering, Factory Automation, and Renewable Energies to develop innovative components as well as tailored system solutions and services. Bosch Rexroth offers its customers hydraulics, electric drives and controls, pneumatics, gear technology, and linear motion and assembly technology all from one source. With locations in over 80 countries, more than 37,500 associates generated sales revenue of approximately 6.5 billion euros in 2012.

To learn more, please visit

The Bosch Group is a leading global supplier of technology and services, active in the fields of automotive technology, energy and building technology, industrial technology, and consumer goods. According to preliminary figures, more than 306,000 associates generated sales of 52.3 billion euros in 2012. The Bosch Group comprises Robert Bosch GmbH and its more than 350 subsidiaries and regional companies in some 60 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. Bosch spent some 4.5 billion euros for research and development in 2012, and applied for over 4,700 patents worldwide. The Bosch Group’s products and services are designed to fascinate, and to improve the quality of life by providing solutions which are both innovative and beneficial. In this way, the company offers technology worldwide that is “Invented for life.”

Additional information is available online at ,


Search press releases


Susanne Herzlieb
Maria-Theresien-Straße 23
97816 Lohr am Main
Phone: +49 9352 18-1573

Related Articles


The factory of the future creates added value through flexibility and agility

In future production environments demands on adaptability will rise. This development can only be realized by separating hardware and software in automation. Bosch Rexroth AG promotes this development primarily with a broad product spectrum from sensors to drive and control technology to software solutions.

Press Information

The five most expensive savings ideas for the maintenance of machinery and equipment

Machine downtime is always expensive, especially if a whole production line comes to a standstill as a result. For new machinery, the machine manufacturer is still liable, but afterwards the responsibility for maintenance lies solely with the user. Maintenance staff must constantly justify their "unproductive" costs and, hence, try to reduce them. However, some short-term saving ideas lead to nothing but higher total costs in the end. The following are the five most expensive, and unfortunately, not uncommon errors when it comes to machine maintenance.