For import bearings, inner ring and outer ring can apart installation, this simplified installation process, especially when inside and outside to turn all interference is particularly so when combined. In the inner circle of the shaft has been installed in place in the outer ring has included bearing box when, must look to see whether it is right in the circle of inside and outside, in order to avoid scratch bearing groove and rolling components. If the cylinder and needle bearing with flanged by raised edge the inner circle or the side of flange the inner circle, suggest using install socket.
 
The sleeve should be equal to outer diameter circle of inner groove diameter F, mechanical processing the tolerance of standard should be d10. Stamping needle bearing outer ring had better use core shaft installed. Import bearing the lubrication in principle and other rolling bearing the lubrication basic consistent, just import bearings working conditions is poor, the working performance access to effectively play depends to a great extent on the lubrication bearing.

The import bearing grease lubrication main methods and the oil lubrication. Grease lubrication grease sealing function of both, seal structure and lubrication facilities simple, added a grease convenient, so as long as working conditions allow, the import bearings are generally used grease lubrication. Oil lubrication cooling effect of the strong, and can take away from the bearings inside dirt and moisture.
 
Import bearings by oil lubrication methods have pressure lubrication oil supply lubrication, oil injection lubrication, oil mist lubrication and oil-gas lubrication. Fuel supply pressure lubrication is regular speed import bearing the most effective way of lubrication. Spray oil lubrication oil is with certain pressure will be installed in the side of the bearing through the nozzle spray into the bearings internal lubrication, normally used in high speed import bearings, or pressure lubrication oil supply can not meet the requirements of the cooling occasion. Spray the lubrication is containing the oil mist will dry compressed air spray to bearing internal lubrication, use less oil, because the role of the air, the cooling effect is extremely strong, mainly used for rolling speed is high and high precision rolling large import bearings, or used in bearing in the box often do not remove import bearings. Fuel supply pressure lubrication and spray oil lubrication all need to have come in and out oil lubrication pump, oil storage device, and sometimes still need lubricating oil cooler, therefore, cost is higher, with the general import bearings.
Use import bearings of the process, grease is critical. Use the grease of metamorphism, will damage of bearing. Bearing greases inspection, have the following methods:

1. Oil droplets trace method
Get a clean white paper filter, oil dripping few drops in filter paper, wait for after oil leakage, if the surface has black powder, touch have resistance acerbity feeling, show lubricating oil has many impurities inside, good oil without powder, with the hand feels dry and smooth, and yellow trace.

2. Hand twist law
Will lubricating oil in his thumb and forefinger twined between repeated grinding, a good oil hand feel lubricity, honing, no less friction, if feel the sand between fingers and friction are larger, indicates that lube impurities, can't use, should replace new lubricating oil.

3. Illumination method
When the weather is fine day, with a screwdriver will lubricating oil pulled up, and the horizontal plane into 45 degree Angle. Controlled sunshine, observation oil droplets, on the illumination, can be clear to see no oil honing for good, can continue to function, if too many honing, should be replaced lubricating oil.

4. Commercial observation
Take two cups, one of which filled the lubricating oil need to be checked out, and the other an empty on the desk, will be filled with oil's cup lifted from 30-40 cm desktop and tilt, let the oil flow to the empty cup slowly, observe the flow condition, quality good oil duct is a slender, should be uniform, continuous, if appear, fast and slow commercial, or down large, the said oil already metamorphism.

* SF-two and boundary lubrication bearing: acidic together with a aldehydes, has the very high wear-resisting performance, bearing surface is the law of arrangement with oil storage pit assembly must painted lubricating grease, especially suitable for high load capacities of the rotary motion, swing motion and often negative in the next, open and is formed not easily fluid lubrication, the position in the boundary lubrication condition, can use for a long time and don't come on maintenance, and process go can make the service life of the bearings can be more extended, currently used in metallurgical machinery, mining machinery, water conservancy machine, auto parts, construction machinery, agricultural machinery, etc.

* no oil lubricated bearing: this product is the steel plate as matrix, interface layer sintering spherical bronze powder, surface rolling ptfe [ptfe] and the mixture of lead and manufactured. It has a small friction coefficient, resistant to wear and corrosion. No oil since the lubrication and long service life characteristics, and use it to reduce costs, reduce the noise, prevent sticky, slippery. It is widely used in all kinds of mechanical sliding parts such as printing presses, the spinning Jenny, hydraulic van, tobacco machine, medicinal machinery, equipment, micro-motor, automobile, motorcycle, etc.

* metal matrix sets pattern solid lubricated bearing: is a kind of bearing with metal characteristics and self-lubrication characteristics of bearing new lubrication bearing, the base metal load bearing, special formula of solid lubrication materials for lubrication. It has high bearing capacity, impact resistance, high temperature resistant, self-lubricating ability, etc. The traditional oil-retaining bearing: because of the low voice, self-lubrication travel the advantages, oil bearing has become a computer CPU fan bearing is new bestow favor on, market demand is big; In addition, as the noise of the demand is higher and higher, oil bearing in daily household appliances application also is expanding.




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