KOYO use outer spherical bearing grease for operation

KOYO bearing running clearance in slightly negative, the largest bearing life. But actually should keep bearing the best condition is very difficult, once some using conditions change, the negative clearance increases, thus triggering a significant reduction in the outer spherical bearing life or fever. Therefore, often requires choosing initial clearance, running clearance off for only a slightly greater than zero. For use under the condition of bearing, usually will use the normal load, speed and at normal temperature, simply select the corresponding normal clearance, make available appropriate running clearance. KOYO bearing grease is usually make a similar viscosity or apparent viscosity, said when, on the viscosity of grease must specify the temperature and shear rate. Similar viscosity index can be used to control the low temperature fluidity and pumping. Measure the outer spherical bearing grease performance at low temperature is one of the important indicators of low temperature torque, namely at low temperature ( - 20 ° c below) Grease block bearing rotational degree of low speed flows, the low temperature torque of the grease by the starting torque and rotation torque after 60 mm average said. The evaporative (KOYO bearing grease C) Said in the long-term use under condition of high temperature grease, grease oil volatilization, evaporative as small as possible. The evaporative mainly depends on the nature of the lubricating oil and fat fractions. Oxidation stability is refers to the grease when used in long-term storage or long-term high temperature resistance to heat and oxygen, permanent changes in their ability to maintain its nature will not occur. Due to oxidation, are often free alkali content reduced or free organic acid content increases, drop point drop, dark appearance, appear different smell, consistency, ultimate strength, similar viscosity decreased, generated corrosive product and destroy the material of grease, soap oil separation. In long-term storage of grease, therefore, should be stored in dry and ventilated environment, prevent sun, and shall regularly check free base or free change of the project such as organic acid, corrosion resistance, to ensure its quality and performance. Check the bearing, don't let bearing exposure to pollutants or moisture environment. If the job is interrupted, should with oil film, paper or similar material by machine. If without disassembly and may perform inspection of cleaning exposed outer spherical bearing, to coating with brush with petroleum solvent ( 白酒) Cleaning and dry with a lint-free cloth or with compressed air to blow dry, Be careful not to let the bearing component starting rotation) 。 Do not clean the encrypted block or dust bearing; You just wipe the outer surface. If the bearing is need to replace damaged situation. In regular maintenance downtime period change than the array bearing KOYO bearing damage selected into a sudden shutdown loss much more economical