Ever since its foundation in 1966 PM has brought a continuous stream of technological innovations to the market. Over the last five decades, PM products have opened up new opportunities for our customers, providing them with technological advantages that helped them to expand their business and drive new product development.
In translating today’s industry challenges into new products we depend on our highly qualified and driven workforce. Each one of our employees brings in their specific knowledge and a lot of enthusiasm for product innovation. PM also benefits from its strong relationships with world-leading universities, which ensure we are always operating on the cutting edge of the latest R&D and industry knowledge.
In 1990 we introduced the RPM rotary positioning bearing, known for its high repeatability and accuracy in a rotary motion. RPM bearings are made from corrosion resistant steel and the ring can be ordered with one or more carriages. The carriages use adjustable and replaceable recirculating bearing elements. The bearings enjoy popularity in the measurement and analysis industries for their high repeatability and accuracy. Go to the page with RPM specs.
Gonio bearings were originally developed for use in the precision optical lenses industry. Today they can also be found in measuring devices and in semiconductor R&D. The bearings can be supplied either with crossed roller or ball bearing cage assemblies. RGB bearings offer precise angular motion with a low rolling friction coefficient.
PM introduced the first standardised anti-cage creep system (ACC) as an optionial feature for the RSDE deep groove crossed roller bearings. An all-metal design that provides reliable performance in even the most demanding applications. As the system is integrated in the design of the linear bearing without affecting the bearing’s external dimensions, it is possible to replace existing linear bearings with ACC bearings (drop-in replacement).
In 2005 PM was the first company to introduce a full range of ceramic crossed-roller linear bearings. Since then we have further gathered superior knowledge of the product and its behaviour in industry applications. We are a major supplier of ceramic linear bearings to high-tech markets including medical science and the semiconductor industry. Click here for more information about ceramic linear bearings.
Driven by demand from the semiconductor industry, in 2005 PM introduced the flat mounted table bearing series FMB.
FMB was specifically designed for tight spaces, high accuracy requirements and repeatable precision. Due to the height difference between the inner and outer ring, as well as the presence of attachment holes, this bearing is easy to mount. The defined friction force, modified load ratings and a corrosion resistant design are among the optional features available.
During the Motek industrial fair in Germany in 2006, PM demonstrated the practical use of carbon fibre composite linear slides and introduced a range of carbon fibre frictionless slides.
Six years onwards from its first introduction in 2001, our next generation anti-cage creep solution was ready for market. The new ACC combines a modified rack system with a high-density KRE roller cage type, providing longer lifetimes and increased load capacity. Our anti-cage creep technology is available in the standard linear bearings sets of the RSDE and RNG types.
ACCI for UHV is our anti-cage creep technology for stainless steel RSDE linear bearings. With a rack that is integrated in the through hardened rail, this solution is suitable for use in vacuum and ultra-high vacuum applications. A roller cage made from PEEK material has been designed specifically for use with this solution, if needed.
The PMMR micro roller slide offers high stiffness and load ratings in a compact and stainless steel design. PMMR slides are a popular solution in the medical and semiconductor industries. They meet the smallest space requirements in the market while demonstrating excellent motion performance. PMMR is the first micro roller slide in the market using crossed roller bearing technology.
RNG linear bearings combine smaller assembly dimensions with a 30% higher load rating than any other product in the market. This makes our RNG type the absolute benchmark in precision linear bearings.