1. The needle into the degree
Mainly according to the method of fatliquoring to selected into the size of the needle degree, in order to join bearing, form of lubricant, and at the same time, not to the loss. For oil central lubricating system, to ensure the pumping system performance, grease should be properly more soft, namely the needle into the degree some bigger, should be in commonly 270 above. Manual oil gun and fat with the needle into the cup fat for is 240 ~ 260. Bearing load, speed low, needle into the degree of rappel/abseil stations should be small grease, and to choose the needle into the degrees. High-speed bearing needle selection into the degree of small, mechanical stability good grease.
2. Drop point
Should be generally higher than 20 ~ 30 ℃ temperature to avoid work because the temperature effect grease goes lean, causing too much waste loss. Also cause bearing early wear short of fat. High temperature continuous operation conditions, not more than a grease allowed using temperature range.
3. Bearing working environment
If have water drench and moist place, should choose has water resistance of calcium and sodium based fat, calcium-fat or high temperature synthesis fat. As in high temperature and steam environment, should choose compound lithium (or aluminum) and fat; The environment or temperature difference is very big change range, it should be a temperature range to adapt to a wider silicone ester.
4. Under the heavy load bearing
The extreme pressure additives of grease. If request service life long, the antioxidant supplements with grease. Such as the requirement of bearing the surrounding environment tightly control atmosphere, can use volatile smaller grease.
Adhesion: must have good adhesion.
Other News:
Sliding bearing greases requirements
Sliding bearing damage type (1)
The rolling bearing axial orientation and fixed
Sliding bearing damage type (2)
Sliding bearing the electroplating of the new process of reducing friction (2)
Common bearing inner ring fixed way
Sliding bearing the electroplating of the new process of reducing friction (3)
Common bearing outer ring fixed way
