cpm bearings – FACTORY HELP

CUSTOMISED BEARINGS

Shall we develop a brand new project together? 50 years of experience to your advantage!

TEXTILE

The bearings that are used are of the angular-contact ball type, in precision class P5 and
cylindrical roller type, with either a polyamide cage or a full complement, depending on
application requirements; typically, the intended recipients are manufacturers of hosiery and
knitting machines and manufacturers of rapier or air looms. Another product category is cam
followers of the needle roller type offered either in case hardening material, when greater
impact resistance needs to be provided, or, alternatively, in 100Cr6. In some cases, under
suboptimal lubrication conditions, we propose surface treatments aimed at reducing wear on
the rolling surfaces, so as to prolong the life of the bearing itself. Completing the production
range are rings.

ROBOTICS & AUTOMATION

In this division we offer precise cross roller bearings together with 4-point contact washers
with or without toothing with high stiffness that find their place in the kinematics of the
different axes. Our offer is completed with large angular contact bearings for planetary and
harmonic drives intended for major robot manufacturers.

EARTHMOVING

Our needle roller, full-row cylindrical or cage roller, double-row angular contact and tapered
roller bearings are used in a variety of industrial sectors, from planetary gearboxes for
winches to those for wheeled or tracked excavators, from the wind power sector to axles for
agricultural machinery. We offer solutions involving specific surface treatments to ensure
longer bearing life even in poor lubrication conditions. An interesting solution is the kit
bearing consisting of a pair of inner rings with associated spacer cages and balls that is
integrated into the wheel hub; finally, also worth mentioning is the production of tapered
roller bearings used as a sun bearing in planetary gearboxes.

UNIVERSAL JOINTS

Bearings for extensions and crosses are of the cylindrical roller type, with or without zinc or
manganese anti-corrosion surface treatment. They must withstand high radial loads, are
made of case-hardening material, and integrate a nitrile rubber seal or Viton, upon request.

MEDICAL

The electromedical sector, in this case that characterized by rotating anode X-ray tubes ,
requires special steel angular ball bearings, e.g., Rex20 or M62, because of the high speeds
of rotation and equally high temperatures. Operating in vacuum, the balls must undergo
treatment to ensure proper lubrication; another important aspect is the quietness
determined by finely lapped raceways with very small geometric errors.

HYDRAULIC MOTORS

Roller bearings type NU, NUP and needle roller bearings type NA and RNA are widely used
in the construction of hydraulic pumps and motors.

BIKING

Precision and reliability are the basis of bearings intended for the bike bottom bracket as well
as for high-end carbon fiber wheels. Depending on the specific need, we can offer the
standard solution consisting of the use of 100Cr6 steel and nitrile rubber shields, or a top-of-
the-line version characterized by rigid radial or angular contact bearings made of
stainless steel, silicon carbide balls and Viton shields. The cage is made of low-friction
plastic. The ultimate goal is to ensure greater smoothness and resistance to corrosion from
any chemicals that come in contact during washdowns of the bike frame itself.

FOOD & BEVERAGES

Special corrosion-resistant steels, specific polyurethane coatings and the use of food-grade
greases characterize the bottling and packaging industry in general. These are radial or
angular contact ball bearings used in filling and packaging machines. On request they can
be supplemented with special toothing and shielding that can withstand frequent washing.

AGRICULTURAL

Our full-turn bearings are mainly used in wheel gears and axles; they offer the advantage of
having high radial load capacities in small footprints. They often have anti-wear coatings due
to low rotational speeds and poor lubrication. They are normally supplied in the
configuration without an outer ring that is directly represented by the satellite gear; another
product to mention is the tapered roller bearing used as a sun bearing in planetary gears.
Finally, another product we can offer are the manganese phosphate bushings that are used
in gearboxes.

AUTOMOTIVE

IATF Certification is a guarantee of absolute quality; automotive is a niche sector for us, so the
products we make find application in projects consisting of medium-low volumes but high
prestige. In this case, we supply very precise rings that are used in the transmissions of high-
end sports cars. Another application is bushings used on the axle shafts of road vehicles;
these products have the characteristics of being partially chrome-plated on the outer
diameter to ensure good corrosion resistance.