Product introduction

Drum roller bearing is a special type of roller bearing.

Structural features

Roller shape：The roller is drum-shaped, and its contour line bulges outward in the middle part, making the contact between the roller and the raceway different from the traditional cylindrical roller or tapered roller. This unique shape design can improve the bearing bearing capacity and service life to a certain extent.

Raceway design：The inner and outer raceways are optimized according to the shape of the drum rollers to ensure that the rollers can roll smoothly and achieve good contact in the raceway.

Cage：The cage is usually made of metal or non-metallic materials, and its function is to evenly separate the rollers to prevent collision and friction between the rollers. At the same time, the cage can also guide the direction of movement of the rollers to ensure the normal operation of the bearings.

Working principle

Carrying capacity：Drum roller bearings can simultaneously bear a large radial load and a certain degree of axial load. Due to the special shape of the roller, the contact area between the roller and the raceway is relatively large when the bearing bears radial load, which can disperse the load and improve the bearing capacity. When bearing axial load, the drum structure of the roller can generate a certain axial component force to balance the effect of axial force.

Automatic heart adjustment function：Drum roller bearings have a certain function of automatic centering. When there is a certain angular deviation between the shaft and the bearing seat or the shaft is bent, the drum roller can automatically adjust the position in the raceway to adapt to the change of the shaft, thereby ensuring the normal operation of the bearing and reducing friction and wear.

Operating stability：During the operation of a drum roller bearing, the contact mode and motion trajectory between the roller and the raceway are relatively complex, which requires the bearing to have high manufacturing accuracy and assembly accuracy to ensure that the roller can roll smoothly, reduce vibration and noise, and improve operation stability.

Application field

Heavy machinery：In heavy machinery such as large cranes, excavators, and mining equipment, drum roller bearings are often used to withstand huge loads and shocks. The working environment of these equipment is harsh, which requires extremely high reliability and durability of bearings. The special structure and performance characteristics of drum roller bearings can meet these requirements.

Metallurgical equipment：In the metallurgical industry, rolling mills, steelmaking equipment, etc., drum roller bearings can withstand high temperatures, high loads and frequent impact loads. For example, the working roller bearings of rolling mills need to withstand huge rolling forces and friction, and drum roller bearings can provide stable support and good performance.

Port machinery：Drum roller bearings are also widely used in cranes, conveyors and other equipment in ports. These devices require long-term continuous operation, which requires high bearing capacity and operating reliability. Drum roller bearings can meet these requirements.

Wind power equipment：In the spindle, gearbox and other parts of wind turbines, drum roller bearings can withstand large wind loads and complex working conditions. Since wind power equipment is usually installed in the field, the working environment is harsh, and the reliability and maintenance requirements of bearings are also high, and the performance characteristics of drum roller bearings can adapt to these requirements.