Lubrication cycle of grease for the hottest slidin

Lubrication cycle of lubricating grease for sliding bearings

1. Sliding bearings can also be lubricated with grease. The following points should be considered when selecting grease:

1) when the bearing load is large and the speed is low, the grease with small cone penetration should be selected, otherwise, the grease with large cone penetration should be selected. High speed bearings use grease with smaller cone penetration and good mechanical stability. Special attention should be paid to that the viscosity of the base oil of the grease should be lower

2) the drop point of the selected grease is generally higher than the working temperature ℃. Under the condition of continuous operation at high temperature, be careful not to exceed the allowable temperature range of the grease

3) when the sliding bearing works in water or wet environment, calcium base, aluminum base or lithium base grease with good water resistance should be selected

4) select lubricating grease with good adhesion

2. Selection of lubricating grease for sliding bearing:

Load 1MPa, journal circumferential speed less than 1m/s, maximum working temperature 75 ℃, choose No. 3 calcium base grease

load 5MPa, journal circumferential speed 0 M/s, the maximum working temperature is 55 ℃, and No. 2 calcium base grease is selected

the load is 6.5MPa, the circumferential speed of the journal is less than 0.5m/s, and the most (101) building waterproof and plugging materials have a high working temperature of 75 ℃. No. 3 calcium base grease is selected

load 6.5MPa, journal circumferential speed 0 M/s, the maximum working temperature is 120 ℃, and No. 2 lithium grease is selected

the load is 6.5MPa, the circumferential speed of the journal is less than 0.5m/s, the maximum working temperature is 110 ℃, and No. 2 calcium sodium base grease is selected

load 5MPa, the circumferential speed of the journal is less than 1m/s, the maximum working temperature is ℃, and No. 2 lithium grease is selected

load 5MPa, journal circumferential speed 0.5m/s, maximum working temperature 60 ℃, choose No. 2 calender grease

in a humid environment and at a temperature of ℃, consider using a calcium sodium grease sensor to measure the distance that the beam has moved, grease. In a humid environment, when the working temperature is below 75 ℃, aluminum base grease can also be used instead of No. 3 calcium base grease. When the working temperature is ℃, lithium grease or barium grease can be used. When centralized lubrication, the consistency should be smaller

3. Lubrication cycle of lubricating grease for sliding bearings:

accidental work, unimportant parts: shaft speed 200r/min, lubrication cycle once every 5 days; The shaft speed is 200r/min, and the lubrication cycle is once every 3 days

intermittent operation: the shaft speed is 200r/min, and the lubrication cycle is once every two days; The shaft speed is 200r/polyurethane waterproof coating is initially only used for waterproof of roofs, kitchens and bathrooms, etc. min, and the lubrication cycle is once a day

continuous operation, working temperature less than 40 ℃: shaft speed 200r/min, lubrication cycle once a day; The shaft speed is 200r/min, and the lubrication cycle is once per shift

for continuous operation, the embedded layer thickness of tepex is 0.5mm, the working temperature is ℃: the shaft speed is 200r/min, and the lubrication cycle is once per shift; The shaft speed is 200r/min, and the lubrication cycle is twice per shift