Spherical Roller Bearings: Features, Advantages And Application Fields

Spherical roller bearings are key components in industrial equipment for handling complex working conditions, playing a core role in heavy-load scenarios with their unique design.

Core Features

Their most prominent feature is self-aligning capability. The outer ring raceway has a spherical structure, allowing an axial deviation of 1°-2.5° between the inner and outer rings, which can compensate for installation errors and shaft deflection. The bearing adopts a double-row spherical roller design, with point contact between rollers and raceways. Combined with the wide bearing width, it forms a strong load-bearing foundation. High-purity bearing steel is mostly used in materials. After precision processing, the roller surface is smooth, and combined with metal or polymer cages, it ensures stability during high-speed operation. The inner bore has two forms: cylindrical and conical (with taper ratios of 1:12 or 1:30), adapting to different installation requirements.

Outstanding Advantages

Spherical roller bearings can withstand both radial and axial combined loads, with a radial load-carrying capacity far superior to that of deep groove ball bearings, making them suitable for heavy-duty equipment.

The self-aligning function significantly reduces the additional stress caused by installation deviations, lowers the risk of early bearing failure, and prolongs the service life of equipment.

Their structural design enables better control of vibration and noise, and they perform stably under impact loads.

The conical inner bore, when paired with adapter sleeves or withdrawal sleeves, allows for convenient installation and disassembly, resulting in low maintenance costs.

By optimizing the structure and material of the cage, they can adapt to harsh environments such as high temperatures and dust.

Typical Application Fields

Heavy machinery field: Widely used in the rotating shaft systems of mining crushers, rolling mills, cranes and other equipment to bear huge radial loads.

General industry: The main shaft supports of fans, water pumps and compressors often adopt such bearings to cope with slight shaft deformation.

Construction machinery: The traveling mechanisms and slewing bearings of excavators and loaders rely on their impact resistance.

Papermaking and printing and dyeing: The transmission roller groups in papermaking, printing and dyeing production lines utilize their self-aligning characteristics to compensate for the deflection of long shafts.

Shipbuilding and electric power: They can also stably bear combined loads in heavy-duty motors and reducers of related equipment, ensuring continuous operation.