Internal And External Factors Affecting The Service Life Of Double-Row Cylindrical Roller Bearings

Time：2020.04.24  Source：Roller Bearings Suppliers

Bearing size restrictions

Usually the space where double row cylindrical roller bearings can be installed is limited. In most cases, the shaft diameter (or bearing inner diameter) is based on mechanical design or other design limitations. Therefore, the choice of bearing type and size is determined according to the inner diameter of the bearing. Therefore, the main size tables of standard bearings are compiled based on the international standard inner diameter size. Need bearing 23134CC/W33, click here

Standard double-row cylindrical roller bearings come in a variety of sizes, and standard bearings are used in the design of mechanical devices (this design determines whether the bearings are easy to purchase. I will say aside from this, some bearing catalogs do have models, but some are not The standard bearing is not available in mainland China, and sometimes the futures will take a long time, so the time cost and the cost of later replacement must be considered when selecting the bearing) The load of the double row cylindrical roller bearing, the load imposed on the bearing, its The nature, size and direction are variable. Usually, the rated basic load is shown on the dimension table. However, axial load and radial load are also important factors in choosing a suitable bearing. When the dimensions of the ball and needle bearings are equivalent, double-row cylindrical roller bearings usually have a higher load capacity and withstand larger vibration and shock loads.

Bearing speed

The allowable speed is determined by factors such as the type, size, accuracy, cage type, load, lubrication method, and cooling method of the double-row cylindrical roller bearing. The bearing table lists the allowable speed of standard precision bearings under oil lubrication and grease lubrication. Generally, deep groove ball bearings, self-aligning ball bearings and cylindrical roller bearings are suitable for high-speed operation. Need bearing 23134CCK/W33 click here

Bearing tolerance

The dimensional accuracy and rotation accuracy of double-row cylindrical roller bearings are based on ISO and JIS standards. For machines that require high precision and high-speed operation, it is recommended to use bearings of grade 5 or higher accuracy. Deep groove ball bearings, radial thrust ball bearings or cylindrical roller bearings are suitable for machines with high running accuracy. Rigidity, when the rolling element of the bearing and the contact surface of the raceway are compressed, elastic deformation will occur. Some machines need to minimize elastic deformation. Roller bearings produce less elastic deformation than ball bearings.