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Spherical roller bearings, grease is very critical. If use of a deterioration of the grease, not only to achieve its proper role, away also damage timken bearing.
Oil flow observation
Take two measuring cup, one Sheng lubricants to be check the other empty on the table, will be filled with lubricating oil measuring cup held 30-40 cm high to leave the desktop and tilt, lubricating oil slowly flows to the empty cup to observe the flow of good quality lubricant oil flow should be slender, uniform, continuous oil flow unsteadiness, sometimes a large shed, said lubricating oil has gone off.
2 hand twist method
Lubricants will twist between the thumb and index finger repeatedly grinding the the lubricants hands feel better lubricity, less wear debris, friction-free, if they feel the sand between the fingers like a larger friction sense indicates that the lubricant impurities within can not be reused, should be replaced with new oil.
3. Illumination method
Days when the weather is sunny, with a screwdriver will lubricants lifted to a 45 degree angle with the horizontal plane. Control the sun, the observed oil droplets situation, in the light, you can clearly see the debris in the lubricant for good, can continue the role, if too much debris, replace grease.
4. The oil droplets traces of Law
Take a clean white filter test strip to the drop of oil a few drops in the filter test strips, until the oil leakage, if the surface of the black powder hand touch resistance astringent sense the lubricant inside impurities, good lubricant powder, hand feels dry and smooth, and yellow traces.
Spherical roller bearings to be delivered before the routine examination in order to remove the oil seal packaging them into a solution containing 3% oil washing gasoline or acid-free kerosene, rotating the outer ring and carefully rinse the cage roller with Road at the junction, requiring any hidden parts of the remaining original traces of oil thoroughly cleansed. Spherical roller bearings should be annexed cleaning Youlin dry after washing clean, on lined workbench to dry clean neutral liner or slowly in the far-infrared oven drying. Self-cleaning the Youlin dry as well as dry or drying, the whole process of not rotating bearing ring, cage or any rolling element.
Dry or drying-aligning roller bearings, shall drip lubricant and immediate delivery inspection, the bearing outer surface film protection, the entire inspection process are not directly touch the manpower skin, the operator should wear on clean gloves, or hand painted with a rust inhibitor, but must avoid the hands of anti-rust agent mixed with the rolling surface of the bearing, otherwise it would measure the result of the deviation.
Spherical Roller Bearings After checking, you should immediately delivered or rust inventory processing should also pay close attention to the completion of the entire inspection process, so as not to cause corrosion lasted too long. Note the use of the oil without pure gasoline cleaning can also cause corrosion. Spherical Roller also required some bearings before checking the check with the amount of blocks, standard parts and measuring instruments common on a metal plate placed in the inspection place, so can quickly make these objects temperature homogenization and room temperature .
Clearly, the only strictly do the preparatory work, in order to ensure accurate inspection results, the entire inspection process aligning roller bearings will not rust.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| LM283720 NSK | 22 | 37 | 20.2 |
| LM2825 NSK | 22 | 35 | 25.2 |