PFI Fersa Bearings

Fersa manufactures special ball roller bearings serving the need for certain applications and are recorded under the nomenclature F 18000.

The most popular applications for this bearing type are the gearboxes for different types of vehicles.

The double row angular contact ball bearings can bear large radial loads in both directions since the line of action for the loads form an angle at the bearing axle.

This family is identified under the nomenclature F 16000.

The main application of this typology is for light vehicle wheels, therefore we rely on special references whose outer ring has incorporated design changes to improve its integration with the final application.

Angular contact ball bearings have a fundamental feature where the load line of action between the balls and the rolling tracks forms an angle with the geometric bearing axle. For this reason, the rolling tracks of the inner and outer rings are axially offset from each other, allowing endurance of large radial loads in both directions.

They are double row ball bearings designed to operate at high rotational speeds and low noise, technically different by being composed of a single inner ring. They are within the nomenclature F 16000.

Thrust ball bearings can support large axial loads in one direction, requiring a minimum axial load for optimum performance.

The bearings are detachable so that the assembly is simple since the washer, the ball, and the cage can be mounted separately.

Standard Fersa cylindrical bearings are single row. Depending on its internal design, there are 4 product families (N, NJ, NU, NUP) able to detach the inner or outer ring depending on the type.

Depending on the design type, the rollers operate guided between the flanges of the outer and/or inner rings.

Fersa provides customized solutions for various sector applications conforming with the strictest quality and OEM standards.

The most popular applications for this bearing type are gearboxes and differentials from different types of vehicles.

Fersa has created its own terminology to be outside of the design standards: F 19000.

The metric tapered roller bearings are designed according to the European International Standard ISO 492 and are divided into subfamilies based on their outer diameter and height.

This typology is the standard kind, which allows them to be used in many applications, thanks to the combined load distribution and high performance at optimum speeds.

Inch series are designed according to the American Standard AMBA, mainly present in the U.S. market.

They consist of detachable and interchangeable elements that make them easily adjustable in any application.

The flange side bearings are distinguished by the precision between the geometry of the outer ring flange and inner assembly, allowing optimal adjustment of the piece in remote applications.

There are two types depending on the flange location on the outer ring.

The special tapered roller bearings do not fall under a standard policy.  In Fersa, special series are identified under the F 15000 nomenclature. Fersa specializes in providing customized solutions for various sector applications meeting the highest quality and OEM sector standards.

The most popular applications for this bearing type are wheel hubs for light and industrial vehicles, gearboxes, and differentials.

The U type tapered roller bearings are an exception within the conventional tapered roller bearings since this is a compact unit type that includes the grease and is pre-regulated without having to install an opposite bearing. Furthermore, they have a flange on the outer ring that is fastened axially in the application once the bearing is mounted.

Originally it was designed for use in semi-floating vehicles, it can also be used in a variety of transmissions and general industrial applications.

The interior sets manufactured by Fersa meet the highest quality and OEM standards. The interior sets manufactured by Fersa are mounted onto the axles of the European manufactured gearboxes for the most challenging gearboxes.

Fersa specializes in generating high precision interior sets for the most popular applications for each industrial vehicle gearbox.

This type of bearing is used in applications that already have the mechanized outer track in the application.

Double row tapered roller bearings, composed of two interior sets housed in one outer ring, can withstand large radial and axial loads in both directions. They allow for rigid bearing arrangements and are suitable for bearing arrangements where rigid axial guidance is required.

The double row tapered roller bearing design allows for space saving applications, and in many cases the bearing requires no maintenance since it is lubricated for life.

Thrust tapered roller bearing, also known as T type bearings, allow for very compact axial arrangements, able to endure large axial loads. It is distinguished by its durability and resistance to impact.

Fersa produces three types of tapered roller axial bearings:

• Those designed for low speed and thrust loads
• For applications where a full rotation is not required
• Those designed for large thrust loads and high speeds

We bring together the components in a single piece to reduce the weight and pre-adjust them for a more agile and efficient assembly. The geometry of the pinion module and its rigid design reduce the deviation at the gear point during dynamic load conditions. In this way, we prevent leaks and guarantee the service life of our product.

Our engineers are involved from the design of the hubs and the choice of raw material to the after-sales service.

We provide materials and designs which are original counterparts. We respect tolerances and clearances and validate each of the pieces with a final application.

The surfaces of our hubs are mechanized with a high degree of precision and we guarantee the high quality of the raw material.

We carry out tests demonstrating optimum performance on both on our own benches and on the field.