The self-aligning ball bearing has two structures: cylindrical hole and conical hole, and the material of the cage includes steel plate, synthetic resin, etc. Its characteristic is that the outer ring raceway is spherical in shape and has automatic centering, which can compensate for errors caused by different centricity and shaft deflection. However, the relative inclination of the inner and outer rings should not exceed 3 degrees.

Product Introduction

A self-aligning ball bearing is a bearing equipped with spherical balls between the inner ring of two raceways and the outer ring of a spherical raceway.

The curvature center of the outer ring raceway surface is consistent with the center of the bearing, so it has the same centering function as automatic self-aligning ball bearings. When the shaft and casing are bent, they can be automatically adjusted without increasing the bearing burden. Self aligning roller bearings can withstand radial loads and axial loads in both directions. Large radial load capacity, suitable for situations with heavy loads and shock loads. The inner diameter of the inner ring is a tapered hole bearing that can be directly installed. Alternatively, use a locking sleeve or disassembly cylinder to install it on the cylindrical shaft. The cage is made of steel plate stamped cage, polyamide formed cage, and copper alloy car made cage.

The self-aligning ball bearing has two structures: cylindrical hole and conical hole, and the material of the cage includes steel plate, synthetic resin, etc. Its characteristic is that the outer ring raceway is spherical in shape and has automatic centering, which can compensate for the errors caused by different centricity and shaft deflection in aligning ball bearings. However, the relative inclination of the inner and outer rings should not exceed 3 degrees.

Can withstand large radial loads and also certain axial loads. The outer ring raceway of this type of bearing is spherical, so it has centering performance. When the shaft is bent or tilted under force and the relative inclination between the inner ring centerline and the outer ring centerline does not exceed 1 ° to 2.5 °, the bearing can still work.

There are two types of inner holes in self-aligning ball bearings: cylindrical and conical. The taper of the conical inner hole is 1:1 2 or 1:30. In order to enhance the lubrication performance of the bearing, an annular oil groove and three oil holes are machined on the outer ring of the bearing.

Product characteristics

It mainly bears radial loads and can also withstand small axial loads. The axial displacement of the shaft (shell) is limited within the clearance limit, with automatic centering performance, allowing normal operation under conditions of relatively small internal and external inclination. It is suitable for components where the support seat hole cannot strictly guarantee coaxiality.

structural style

The self-aligning ball bearing with dust cover and sealing ring has been filled with an appropriate amount of lubricating grease during assembly. It should not be heated or cleaned before installation, and does not need to be lubricated during use. It is suitable for operating temperatures between -30 ℃ and+120 ℃. Self aligning ball bearings are mainly used for precision instruments, low noise motors, automobiles, motorcycles, and general machinery. They are the most widely used type of bearings in the mechanical industry.

Product Applications

Self aligning ball bearings are suitable for bearing heavy and impact loads, precision instruments, low noise motors, automobiles, motorcycles, metallurgy, rolling mills, mines, petroleum, papermaking, cement, sugar squeezing and other industries, as well as general machinery.

Job requirements

For bearing configurations with heavy loads, harsh working conditions, or special sealing requirements, built-in contact sealed self-aligning roller bearings can be used. The external dimensions of this bearing are identical to those of non sealed bearings, and it can replace non sealed bearings in many situations. The allowable centering angle is 0.5 °, and the working temperature is -20 ℃~110 ℃. The bearing has been filled with an appropriate amount of lithium based anti rust lubricating grease, and lubricating grease can also be added according to user requirements. According to the presence or absence of ribs on the inner ring and the different types of cages used, it can be divided into two basic types: C-type and CA type. The characteristic of C-type bearings is that the inner ring has no ribs and uses steel plate stamped cages. The characteristic of CA type bearings is that there are ribs on both sides of the inner ring and vehicle made solid cages are used. This type of bearing is particularly suitable for working under heavy loads or vibration loads. Self aligning roller bearings are equipped with drum shaped rollers between the inner ring with two raceways and the outer ring with a spherical raceway.