Tapered roller bearing

The industrial sector demands robust bearings tailored to various machines. They must be capable of withstanding high axial and radial loads. With superior quality, tapered roller bearings stand out for their durability across numerous applications. They are frequently used in the railway sector, as well as in machine tools and drive systems.

At Rubix, each set adheres to the current nomenclature to ensure perfect compatibility with the necessary dimensions and thickness. Our expertise is complemented by a wide selection of products to meet the needs of your equipment.

The role of a tapered roller bearing is to simultaneously manage radial and axial loads. It consists of four main elements. It requires an inner ring known as a cone and an outer ring. Additionally, it includes tapered rollers and a cage to hold them in place.

Thanks to their geometry, the contacts occur along a line. This limits deformations and friction. The ISO 355 standard promotes precise identification of dimensions. It determines the thickness and angle of the cone to ensure a perfect fit according to the mechanical constraints of the assembly.

• The single-row model is the most standard. It is often mounted in pairs O/X to compensate for forces. The double-row bearing has two cones and two cups, allowing it to manage axial loads in both directions.
• Similar to the TQO series from Timken, the four-row ranges are dedicated to handling significant loads. They are found in rolling mills or presses.

Materials play a key role. A robust cage made of polymer or steel enhances the reliability of the bearing. For improved resistance, a surface treatment or a specific seal may be offered.

Compared to ball bearings, tapered models exhibit a lower rotational speed. However, they provide a linear contact that allows for handling a greater axial load. They also generate less friction under combined stresses.

Unlike cylindrical roller bearings, they can absorb forces along the axis. They also replace certain stops in compact assemblies, reducing the number of parts and adjustment measures.

Tapered roller bearings are used in many demanding industrial sectors:

• Railway industry (axles, bogies, traction motors…);
• Machinery (milling machines, drills…);
• Automotive (transmissions, differentials…);
• Agricultural equipment (tractors, harvesters…);
• Mining and extractive industry (crushers, heavy load equipment…);
• Energy production (turbines, generators, gear reducers…);
• Construction (earthmoving equipment, cranes…);
• Aerospace (ground handling systems, lifting equipment…);
• Industrial production lines (powered rollers, loaded bearings…);
• Recycling industry (crushers, presses, mechanical sorting systems…);
• Transport and logistics (trailers, trucks, semi-trailers…).

These bearings demonstrate great robustness to meet the high demands of combined loads. Their use with a train axle or a gearbox bearing contributes to an extended lifespan. They limit functional play, thereby improving reliability and wear resistance.

Adjusting the play thickness and ensuring a suitable O/X pairing are essential for proper assembly. Lubrication should not be overlooked, as it limits wear and monitors loads and temperatures.

During installation, ensure to check alignment and tolerances for optimal commissioning. Excessive play necessitates checking the seating or replacing a ring.

To select the right bearing, it is important to analyse the loads to be supported and the rotational speed. The operating temperature and working environment are also crucial. Next, determine the correct dimensions, cone angle, and precision level.

The Rubix experts assist you in choosing from various references to combine both performance and durability. In addition to tapered roller bearings, find spherical roller bearings, toroidal roller bearings, or cylindrical bearings.

• The FAG brand from the Schaeffler Group offers metric ranges with perfect OEM compatibility. All their products comply with DIN/ISO standards.
• SKF products provide robust solutions for daily industrial use.
• High-capacity NTN bearings are specifically treated to withstand shocks and high temperatures.
• A leader in four-row tapered bearings, Timken offers sealed options or those specific to rails.

With a wide range of tapered roller bearings, Rubix meets the demands of all industrial environments. Enjoy intuitive searching on the site and a responsive technical customer service. Contact our experts to find the most suitable solution for your applications.