Maintenance and Maintenance of Cylindrical Roller Bearings

Time：2020.09.08  Source：Roller Bearings Suppliers

In order to make the cylindrical roller bearing give full play to and maintain its due performance for a long time, the cylindrical roller bearing must be maintained regularly (regular inspection). Through appropriate regular inspections, it is very important to improve productivity and economy to detect faults early and prevent accidents before they occur.

Disassemble

The disassembly of the bearing is for regular maintenance, and it is performed when the bearing is replaced. After disassembly, if you continue to use it, or when you need to check the condition of the bearing, the disassembly should be carried out as carefully as the installation. Be careful not to damage the parts of the bearing, especially the disassembly of the interference fit bearing, which is difficult to operate.

It is also very important to design and manufacture disassembly tools according to needs. When disassembling, study the disassembly method and sequence according to the drawings, and investigate the matching conditions of the bearing to ensure that the disassembly operation is foolproof. There are enough stock for WSBC SL183016 bearings online , if you need , pls contact us . 

Disassembly of the outer ring For the outer ring with interference fit, set several screws for extruding the outer ring on the circumference of the outer ring in advance, and tighten the screws evenly while disassembling. These screw holes are usually covered with blind plugs and separable bearings such as tapered roller bearings. Several cuts are set on the blocking shoulder of the shell. Use a pad to remove it with a press or gently tap it.

The disassembly of the inner ring can be the easiest to pull out with a press. At this time, pay attention to let the inner ring bear its pulling force. Furthermore, the pull-out clamps shown are mostly used, and no matter what kind of clamps, they must be firmly clamped to the side of the inner ring. For this reason, it is necessary to consider the size of the shoulder of the shaft, or study the processing of the upper groove at the shoulder in order to use the drawing fixture.

The oil pressure method is adopted for the inner ring disassembly of large bearings. Oil pressure is applied through the oil hole provided in the bearing to make it easy to draw. For bearings with a large width, the hydraulic method and the drawing fixture are used together for disassembly.

Induction heating can be used to disassemble the inner ring of cylindrical roller bearings. The method of drawing after heating the part in a short time to expand the inner ring. Where a large number of these bearing inner rings need to be installed, induction heating is also used.

Cleaning

When disassembling the bearing for inspection, first make a record of the appearance with photography or other methods. In addition, confirm the amount of remaining lubricant and sample the lubricant before cleaning the bearing. There are enough stock for WSBC SL183017 bearings online , if you need , pls contact us . 

(1) The cleaning of the bearing is divided into rough cleaning and fine cleaning, and a metal grid can be placed at the bottom of the container in use.

(2) For rough washing, use a brush to remove grease or adhesions in oil. If the bearing is rotated in oil at this time, be careful that the rolling surface may be damaged by foreign matter.

(3) When performing fine washing, slowly rotate the bearing in oil, and perform it carefully.

Commonly used cleaning agents are neutral non-water-containing diesel or kerosene, and sometimes warm lye etc. are used as needed. No matter which cleaning agent is used, it must be filtered frequently to keep it clean.

After cleaning, immediately apply anti-rust oil or anti-rust grease on the bearing.

Cylindrical roller bearing oil mist lubrication and other lubrication methods

1. The oil mist can be dispersed with compressed air to all friction parts of the cylindrical roller bearing that need to be lubricated. A good and uniform lubrication effect can be obtained.

2. The consumption of lubricating oil for cylindrical roller bearings is greatly reduced.

3. Compressed air has low specific heat and high flow rate, which can easily take away the heat generated by the friction of cylindrical roller bearings.

4. Because the oil mist has a certain pressure, it can play a good sealing role, and prevent foreign impurities and moisture from entering the cylindrical roller bearing friction pair.

5. The thinner oil circulating lubrication system has a simple and lightweight structure, a small footprint, low power consumption, convenient maintenance and management, easy automatic control, and low cost.