Roller bearings

Many people express concerns about increased friction when the rings rotate in this case. However, it is worth noting that the efficiency of roller bearings remains consistently high despite this.

To reduce the negative impact of friction, it is recommended to pay special attention to the choice of lubricants. Lubricating greases, although they provide complete protection of bearing elements, can significantly increase rotational resistance. Therefore, it is better to give preference to liquid lubricants that can more effectively remove chips and other wear products.

Roller bearings in aviation are a special category where the rolling elements are tapered or cylindrical rollers, as opposed to the more common balls.

The main distinguishing feature of roller bearings for gearboxes is their excellent ability to withstand high radial loads.

Types of Roller Bearings

Roller bearings come in different types, have different technical characteristics and applications. Here are several types of aircraft roller bearings:

• Spherical roller bearings are high-speed, used for uneven radial loads and compensation for shaft misalignments.
• High-speed helicopter tapered roller bearings designed to accept axial and radial loads. The taper angle of the rings directly affects the load capacity.
• Cylindrical roller bearings for bearing radial loads.
• Roller bearings with small needle rollers, used in compact applications.
• Thrust roller bearings designed to withstand high axial and radial loads.

Technical features of roller bearings

Roller bearings in aviation, according to National Standard Ukraine, have twice the load-bearing capacity compared to ball bearings. This is achieved by using rollers as support elements. Helicopter bearing rollers make linear contact with the treadmill, as opposed to the point contact of ball bearings. This leads to a larger contact area and, accordingly, to a decrease in rotation speed and an increase in friction force. This is why aircraft roller bearings for engines are designed for heavier loads.

The design of roller bearings for helicopter gearboxes includes the following main elements:

• a pair of rings, one inside the other, forming tracks for moving rollers.
• rollers, which can have different sizes and numbers.
• separators (separators), made from various types of metal using turning or stamping methods, and separating rollers.

How to choose aviation roller bearings?

When choosing parts for helicopter gearboxes, you should pay attention to:

• load direction,
• load size,
• the ability of parts to compensate for axial displacements and distortions,
• maximum rotation speed,
• physical volume for installation.

By choosing roller bearings for a helicopter engine, taking into account all the necessary parameters, you can be sure that they will ensure the efficient operation of your equipment in the Dnepr.

We have the opportunity to offer you the optimal helicopter gearbox parts in Kyiv that meet your requirements in terms of performance, price and quality.

Where to buy aircraft roller bearings?

Before purchasing roller bearings, it is recommended to determine the technical parameters, compare analogues, calculate the load and approximate service life, and also discuss the terms and delivery times with the supplier. Therefore, if you need to buy roller bearings for an engine in the cities of Dnepr, Kiev or Kharkov, and you are not sure of the exact characteristics, contact us in any convenient way, and our consultant will help you resolve all issues. Roller bearings are available both on order and in stock in Kharkov.

From us you can purchase high-quality aviation parts for gearboxes, including roller bearings from trusted global manufacturers for engines. Our helicopter parts meet all testing standards and production technology in Ukraine, and also clearly comply with the declared characteristics of accuracy, service life and load capacity.

Purchasing roller bearings from us is an investment in durable and reliable parts for your equipment in Dnepr. This will also reduce overall operating costs. High-quality aviation parts for gearboxes in Kyiv guarantee uninterrupted and long-term operation of your equipment without the need for constant monitoring and intervention.