Innovation with added value

Since the foundation in 1966 PM has launched numerous technological innovations. Products which have given new opportunities and technical advantages to customers to expand their business and develop new technologies.

Highly qualified employees

To translate the challenges of todays industry into new products you need highly qualified and motivated employees. They all bring in their specific knowledge and a lot of enthusiasm. Together with a strong network with worldleading universities PM is able to develop and produce customer specific and new products.

1990: RPM introduced

In 1990 we introduced rotary positioning bearing type RPM which offers high repeatability and accuracy in a rotary motion. They are made from corrosion resistant steel and the ring can be ordered with one or more carriages. The carriages use adjustable and replaceable recirculating bearings elements. They are popular in the measuring and analytical industries which require high repeatability and accuracy. Go to the RPM type.

1998: Gonio bearings RGB introduced

Gonio bearings are developed for the optical industry. Today they are also used in measuring devices and in the semiconductor R&D. The bearings are supplied either with crossed roller or ball bearing cage assemblies. RGB bearings offer precise angular motion with low coefficient of rolling friction.

2001: ACC technology

Introduction of the first standardized anti-cage creep system ACC as option for the deep groove crossed roller bearings RSDE. An all-metal design that provides relieable service in the most demanding applications. Because the system is integrated into the design of the linear bearing without affecting the external dimensions, existing linear bearings can be replaced with ACC bearings as drop-in replacement.

2005: Ceramic linear bearings

PM was the first company to introduce a full range of ceramic crossed roller linear bearings. Now with many years of experience PM has superior knowledge and supplies many ceramic linear bearings to cutting-edge markets as the medical and the semiconductor industry.

2005: FMB Bearings

Due to demands from the semiconductor industry PM introduced the flat mounted table bearing series FMB.
Designed for limited spaces, high accuracy demands and repeatable precision. Because of the difference in height between the inner and outer ring in combination with the attachment holes, the bearing offers easy mounting. Available options are defined friction force, modified load ratings or corrosion resistance design.


During the Motek industrial fair in Germany, PM showed the practical use of carbon fiber composite linear slides and introduced a range of carbon fiber frictionless slides.


2007: Next generation ACC

Introducing the next step in anti-cage creep solutions. A combination of a modified rack system with a high-density roller cage type KRE offering longer life and increased load capacity. Anti-cage creep technology is available in standard linear bearings sets type RSDE and RNG.

2009: Introducing ACCI for UHV

Anti-cage creep technology available for stainless steel linear bearings type RSDE. The rack is integrated into the through hardened rail and suitable for use in vacuum and ultra-high vacuum applications. Also used in combination with a special designed roller cage made from peek material.

Sets with ACC technology

Go to products

2013: Micro roller slide PMMR

Offering high stiffness and load ratings in a compact and stainless steel design. PMMR types became popular in the medical and semiconductor industry. They meet the smallest space requirements in the market with an excellent motion performance. PMMR is the first micro roller slide in the market using crossed roller bearing technology.

2017: RNG linear bearing

Smaller assembly dimensions combined with a 30% increase of load rating compared to our competition. The RNG type is the benchmark in precision linear bearings.