Linear Guide System provides max speed of 375 mm/s.

Press Release Summary:

Measuring 40 x 20 mm, PSK 40 Precision Module features max length of 350 mm and incorporates 6 mm diameter ball screw with option for 1 or 2 mm lead. Ball screw is manufactured to tolerance class 7 with preloaded ball nut. Ball tracks are machined into precision steel base, which includes machined reference edge. PSK40 is suitable for medical, semiconductor, and small machining applications, where stiffness and rapid cycle times are required.

Original Press Release:

New PSK Precision Module Offers Big Performance In A Small Package

The Linear Motion and Assembly Technologies Group of Bosch Rexroth Corporation has introduced new size 40 PSK Precision Modules to bring high precision and speed to medical, semiconductor and small machining applications.

CHARLOTTE, NC - Bosch Rexroth has extended its line of PSK Precision Modules to include the PSK 40, now the smallest size in its product line. The new size PSK brings high-precision solutions to medical, semiconductor, and small machining applications, where high stiffness and rapid cycle times are required.

The PSK 40 module provides industry-leading speed and length capabilities in this size range. Maximum speed is 375 mm/s - almost twice the speed of competitors' offerings - allowing faster cycle times and higher throughput. Maximum length for the PSK 40 is 350mm, whereas competing modules are available only up to 200mm. The extended length capability of the PSK 40 reduces the need to use a larger module for longer stroke requirements, saving the user space and cost.

The PSK 40 module is 40mm wide x 20mm high and incorporates a 6mm diameter ball screw with the option for 1mm or 2mm lead. The ball screw is manufactured to tolerance class 7 with a preloaded ball nut for high positioning accuracy and stiffness.

The ball tracks for the linear guide system are machined into the precision steel base, which includes a machined reference edge. The steel base also provides high rigidity, making the PSK 40 well-suited for small, multi-axis systems.

Accessories include a protective cable duct for mounting switches and routing switch wires, as well as integrated motor mounts for Nema 14 and Nema 17 motors. Single-point lubrication of both the guideway and the ball screw provides simple maintenance.

With the introduction of the PSK 40, the family of PSK modules now ranges from 40mm to 90mm, further expanding Rexroth's overall offering of industry-leading modules. Additional information on the new PSK, as well as all other modules and systems from Bosch Rexroth, is available at our web site,

Bosch Rexroth AG, part of the Bosch Group, achieved sales of approximately $5.7 billion (4.6 billion Euro) in 2005 with over 28,200 employees. Under the brand name of Rexroth the company offers all drive and control technologies, from mechanics, hydraulics and pneumatics to electronics and associated service. Over 500,000 customers worldwide utilize Rexroth's unique technological know-how to implement their innovative and future-oriented systems and machine concepts. The global player, represented in over 80 countries, is an extensive supplier of components and systems for industrial and factory automation and mobile applications. Visit for more information.

Please Direct Reader Inquiries To:
Kevin Gingerich
Bosch Rexroth Corporation
Linear Motion and Assembly Technologies
14001 South Lakes Drive
Charlotte, NC 28273
Telephone 1(800) REXROTH (739-7684)
Fax (704) 583-7294

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