What are cylindrical roller bearings?

The rolling elements are radial roller bearings with cylindrical rollers. The inner structure of the cylindrical roller bearing adopts parallel rollers, and between the rollers spacers or spacers are installed, which can prevent the inclination of the rollers or friction between the rollers and effectively prevent the increase of torque. If you want to know more about cylindrical roller bearings, please read the following words.

How are cylindrical roller bearings constructed?

What are the design features of cylindrical roller bearings?

Why disassemble cylindrical roller bearings?

How are cylindrical roller bearings constructed?

Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bearing radial load. The friction between the rolling element and the rib of the ring is low, which is suitable for high-speed rotation. Depending on whether the ring has ribs or not, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF and double row cylindrical roller bearings such as NNU and NN. The bearing is a structure where the inner ring and outer ring can be separated.

cylindrical roller bearings without flanges on the inner or outer ring, the inner and outer rings can move relative to the axial direction, so they can be used as free end bearings. cylindrical roller bearings with double plate on one side of the inner ring and outer ring and a single plate on the other side of the ring can absorb a certain axial load in one direction. Generally, a stamping cage made of steel or a solid rotary cage made of a copper alloy is used. However, there is also a part of the use of polyamide forming cages.

What are the design features of cylindrical roller bearings?

cylindrical roller bearings allow a very small angular error (inclination) between the axis of the inner ring and the axis of the outer ring, only 2' to 4'. Therefore, the machining accuracy of the shaft and bearing seat is relatively high. Otherwise, uneven load or stress concentration may easily occur on the contact part of the raceway. However, the occurrence of stress concentrations can be reduced by modifying the contact rails of the rollers or raceways.

Why disassemble cylindrical roller bearings?

The dismantling of cylindrical roller bearings is for regular maintenance and is carried out when the bearing is replaced. If you need to continue using it after disassembly or check the condition of the bearing, disassembly should be carried out as carefully as installation. Be careful not to damage the various parts of the bearing, especially when disassembling the fixed seat bearing, which is difficult to handle. It is also important to design and manufacture disassembly tools as needed. During disassembly, study the disassembly method and sequence according to the drawings and examine the adjustment conditions of the bearing to obtain a foolproof disassembly process.

SHANDONG CHIK BEARING CO., LTD has been focusing on cylindrical roller bearings for several years. They will make every effort to meet the needs of users.