Material issue with the bottom bearing of the mixer
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The common material combinations used for the bottom bearings of mixers are mainly these: Stellite 6 combined with Stellite 12; shaft materials (304L or 316L, TI) combined with Teflon; shaft materials combined with graphite. Everyone, please share your opinions and insights*
If I choose 1.4112 for the bearing bush material, what material should I generally use for the shaft sleeve?
I would appreciate some advice from those who are more experienced. I saw the material of the bearing shells on one device before, but I haven’t seen information regarding the material of the shaft sleeves. Thank you! ! !
This post was last edited by reallyzrj on 2012-6-21 09:54. Those made of nylon have a longer lifespan than graphite bearings filled with PTFE. I’ve always wanted to give silicon carbide a try; I’m not sure if it’s feasible
It is necessary to base the material selection on the properties of your medium and its surrounding environment.
I have used silicon carbide; as long as circulating water cooling is provided, it is very durable. However, it is difficult to repair and install, and it is fragile. Silicon carbide can be considered a sintered powder alloy, with natural micro-grooves that form a lubricating film.
I agree with you. Common practice is to use 304 (304L), 316 (316L), or Ti (titanium-containing alloy steel) for the mixer shaft (or shaft sleeve), along with non-metallic bearing shells such as graphite impregnated with epoxy resin or phenolic resin. I would like to know the material of the bearing bush for the bottom of the esterification reactor. Could someone tell me? Thank you in advance!
The material of the bearing at the bottom of the mixer is CFPR
Isn’t a layer of babbitt about 0.1 mm thick plated inside the bearing shells?
Our components are made of 304 stainless steel, with PTFE sleeves
Under the DIN standard, material codes are not easy to remember; it’s best to specify them in parentheses.