| Home>Bearing knowledge>Smooth sliding bearing |
Smooth sliding bearing
Source: China Bearing Network Time: 2014-09-09
| /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089'; |
Smooth oil smooth oil is the primary smoothing agent; the primary physical function index of smooth oil is viscosity; viscosity characterizes the internal conflict function of liquid activity; the greater the viscosity; the less active it is. The other physical function of smooth oil is oily; The adsorption of oil on the metal surface. The greater the oiliness; the stronger the adsorption of metal; the simpler the oil film. The selection of smooth oil should be based on the bearing capacity, the journal rotation speed, the smooth method, and the rough surface of the sliding bearing. Degrees and other elements. The general guidelines are as follows:
1. Under high-speed and light-load operating conditions; in order to reduce the conflicting power consumption, a smooth oil with a small viscosity can be selected. 2. Under heavy or shock load operation conditions; a smooth oil with large oiliness and high viscosity should be selected; Smooth and smooth membrane, 3, static pressure or dynamic pressure sliding bearing can choose smooth oil with small viscosity, 4, the appearance of rough or non-running appearance should choose smooth oil with high viscosity.
The selection of the smooth oil viscosity of fluid-dynamic smooth bearings.
Sliding bearings with a smooth grease journal speed of less than 1 m/s to 2 m/s can be made with smooth grease; smooth greases are made with mineral oil, various thickeners (such as calcium, sodium, lithium, aluminum, etc.) and water. Harmonic; smooth grease consistency (needle penetration); bearing capacity is large; but physical and chemical properties are not stable; should not be used under conditions of large temperature changes; used in low-speed heavy-duty or rocking bearings. Smoothing agents and gas smoothing agents Solid smoothing agents are available in various types such as graphite, molybdenum disulfide (MoS2) and polytetrafluoroethylene (PTFE). They are usually used under heavy load conditions or under high temperature operating conditions. Gas smoothing agents are commonly used. Air; mostly used for high speed and can not be used with smooth oil or smooth grease.
The smooth method of supplying the smoothing agent to the bearing is a necessary condition for forming a smooth film; the hydrostatic bearing and the dynamic pressure bearing are oiled by the oil pump, the economizer and the oil groove to the bearing of the sliding bearing; the oil film is formed to separate the bearing bush from the outer surface of the journal. The oil film of the dynamic pressure sliding bearing is to bring the smooth oil into the bearing gap by the transformation of the journal; the oil supply method has successive oil supply and intermittent oil supply.
Intermittent oil supply:
Intermittent oil supply can be selected by oil pot oil filling and lifting needle valve through oil cup oil filling; grease smooth can only be used intermittently.
Press-fit injection oil cup rotary sleeve type oil-filled oil cup needle valve type oil-filled oil cup successively supply oil:
Core oil supply oil ring oil supply pressure supply criteria:
The smooth method of the sliding bearing can be determined according to the coefficient k: p=F/(dB)--uniform pressure (MPa); v-- journal speed (m/s).k≤2--with smooth system; The oil cup is smooth, k=2 16--needle valve type oil-filled oil cup is smooth, k=16 32 oil ring or splash is smooth, k≥32--pressure cycle is smooth.
Recommend to friends comments close window
| Bearing related knowledge |
| SKF imported bearing operation in the inspection and fault handling of the MorikTM 33 pole low temperature bearing smooth grease bearing bearing parameters why the bearing will be bad IKO imported bearings "grease grease 缘 change causes and methods" |
This article links to http://
Please indicate the bearing network http://
Previous:The use of energy-saving heat treatment skills and equipment in the bearing profession (3)
Next: Installation method for large motor bearing housing
Compraed with other Terrazzo Tiles, terrazzo deco tiles are mixed with marble,terrazzo and wood texture in one piece of ceramic tiles, which make it unique and the best choice of flooring and wall decoration.
- With popular latest deisgn and different patterns provide customer differnt building style requirement.
- High resistant to scratch and good wear reistance.
- 100% water proof and easy to clean.
Decoration Wall Tiles,Ceramic Tiles Deco,Ceramic Tiles,Terrazzo Deco Tiles
Foshan Castel IMP&EXP Co.,Ltd , https://www.fscastel.com