Features of tapered roller bearings

Tapered roller bearings are separable bearings. Both the inner and outer rings of the bearing have tapered raceways, and the rollers are in the shape of a truncated cone. The rollers are in line contact with the raceway, which can bear heavy combined radial and axial loads, and can also bear pure axial loads. The larger the contact angle, the higher the axial load carrying capacity.

The tapered rollers should be designed so that the contact lines between the rollers and the inner and outer raceways are extended and intersect at the same point on the bearing axis to achieve pure rolling.

The newly designed custom tapered roller bearing adopts a reinforced structure, the diameter of the roller is increased, the length of the roller is increased, the number of the roller is increased, and the roller with convexity is used, so that the bearing capacity and fatigue life of the bearing are significantly improved. The contact between the large end surface of the roller and the large rib adopts a spherical surface and a tapered surface, which improves the lubrication.

This type of bearing can be divided into different structural types such as single row tapered roller bearing, double row tapered roller bearing and four row tapered roller bearings according to the number of rows of rollers installed. This kind of bearing also mostly uses inch series products.

The main purpose of tapered roller bearings

Single row: front wheels, rear wheels of automobiles, machine tool spindles, axle vehicles, rolling mills, construction machinery, lifting machinery, printing machinery and various deceleration devices.

Double row: machine tool spindles, rolling stock

Four columns: Roller support

Four points of attention for matching skills of tapered roller bearings

It has become more and more important to check the condition of the running machine and prepare a thorough inspection plan. Among them, the bearing is the focus of attention, because it is the most important rotating part of all machines. Condition monitoring is an important part of preventive maintenance. Early Detect bearing failures to avoid equipment downtime during unscheduled maintenance due to tapered roller bearing failures.

However, not all of them are equipped with this advanced instrument. In this case, the operator or maintenance engineer of the machine must be highly alert to the "fault signal" of the bearing, such as noise, temperature and vibration. "Listen", "Touch" and "Observation" are the four important factors

The first point is to keep the custom bearing and its surrounding environment clean

The second point is to install carefully and accurately when using the installation

The third point, taper roller bearing uses appropriate and accurate installation tools

Try to use special tools and try to avoid things like cloth and short fibers.

The fourth point, prevent the bearing from rusting, do not use water bubbles

To choose the fit correctly, it is necessary to know the actual load conditions, working temperature and other requirements of the double taper roller bearing, which is actually very difficult. Therefore, in most cases, it is selected according to the tapered roller bearing uses.