Accommodate High Axial Loads with xiros Thrust Ball Bearings

What are Thrust Ball Bearings?

Thrust ball bearings are bearings specifically designed to absorb axial (thrust) forces along the shaft's axis. Rolling bearings help reduce rotational friction, whereas thrust ball bearings are engineered to handle axial, i.e. thrust forces.They feature ball rolling elements to manage these stresses and absorb these forces in the axial direction of the shaft.

Unlike metal thrust bearings, xiros thrust bearings are lightweight and run smoothly, as the balls are lubrication free. They are characterized by low friction coefficients and good wear resistance. Requiring no additional lubrication, they maintain cleanliness and hygiene, making them ideal for medical and packaging applications. Additionally, they are FDA-certified, making them suitable for the food industry. Please note, axial needle roller bearings are not included in the product range.

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Everything about our thrust bearings at a glance:

What are thrust ball bearings?

Thrust ball bearings, also known as compression bearings, are there to absorb forces in the axial direction of the shaft.Their design is perfect for low to medium speeds, featuring high stiffness and minimal centrifugal forces. .In contrast, deep groove ball bearings in accordance with DIN 625 implement the support of radial loads, whereby small to medium axial forces can also be absorbed. If the forces act in the direction of the shaft or axis, this is referred to as axial forces.

Standard radial deep groove ball bearings are not sufficient to dissipate these forces. Ball bearings are required for this purpose, which prevent displacement in the axial direction. Thrust bearings allow load distribution to all rolling elements, in a completely different way as is the case with radial bearings.

Where can I buy the thrust bearings?

Single-row thrust bearings, single direction

Double-row thrust bearings

Thrust washer for supporting axial loads

Axial thrust washers

How are thrust bearings constructed and what are their advantages?

The thrust races in our bearings are crafted from high-performance xirodur plastic, developed by igus, eliminating the need for lubricating greases and thus reducing maintenance costs.
Therefore our thrust ball bearings are:

✔️ Corrosion-free,
✔️ Non-magnetic (when using glass balls) and
✔️ Resistant to chemicals.

The balls, which can be made of stainless steel or glass, make the xiros thrust bearings corrosion-free, non-magnetic (with glass balls), and resistant to chemicals. These bearings comply with DIN 711 standards and are available in single-row and double-row options. The double-row bearings are ideal for applications requiring higher load capacities.

When are thrust bearings used?

Thrust bearings are used when high stiffness, low centrifugal forces and low to medium speeds are required. As a rule, this type of bearing is not suitable for radial loads. If necessary, they are combined with radial bearings. Radial bearings are designed in such a way that they withstand the forces acting vertically on the shaft but can also absorb radial forces at high speeds. Some rolling bearings are able to tolerate radial and axial forces that act on a shaft.

Thrust bearing table

Installation size

Inner Ø [mm]

Outer Ø [mm]

Width [mm]

51100

51104

51104 (double row)