What is the load-bearing capacity of tapered roller bearings?

Tapered roller bearings are suitable for bearing radial loads, unidirectional axial loads, and combined radial and axial loads. The axial load capacity of tapered roller bearings depends on the contact angle α, which is the angle of the outer raceway. The larger the contact angle α, the greater the axial load capacity. Generally, tapered roller bearings do not allow for angular errors, but the surfaces of the rollers and raceways can be designed to allow for angular errors of 2 'to 4'. Single row tapered roller bearings can withstand axial loads in one direction.

And it can limit the axial displacement of the shaft in one direction relative to the bearing seat. Even under pure radial load, additional axial force is generated inside the tapered roller bearing, and an equal amount of reverse force is required to balance it. Usually, two single row tapered roller bearings with the same structure are installed face-to-face or back-to-back in two supports. In order to ensure good operating conditions of the bearings, tapered roller bearings, like other ball bearings and roller bearings, must apply a certain amount of minimum load, especially when working at high speeds, high accelerations, or under conditions of frequent changes in load direction.

Because of these operating conditions, the inertia forces of the rollers and cage, as well as the friction inside the lubricant, will have a negative impact on the rolling and rotational accuracy of the bearing, and there is a possibility of harmful sliding motion between the rollers and raceways. The minimum load Fmin required for tapered roller bearings can be estimated using the following formula: Fmin=0.02C, where C represents the basic rated dynamic load. When starting at low temperatures or when the lubricant viscosity is high, a larger minimum load may be required. Usually, the weight of the bearing support itself plus the load borne by the bearing exceeds the minimum required load. If the minimum load has not been reached, additional radial loads must be applied to this type of bearing, such as axial pre tensioning, to meet the minimum load requirements.

We are most concerned with the core value of each product and the various factors that affect this core value when using it. For tapered roller bearings, their efficiency is greatly affected by their stress conditions. So it is very important to analyze the bearing force of tapered roller shafts. This is not only knowledge that users should master, but also a way for businesses to promote such products.

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