How good are domestically produced sliding bearings?

Sliding bearings come in a wide variety of designs; for example, there are \"babbitt\" bearings used in high-speed applications, as well as sliding bearings that function without balls. You might be referring to the latter. The bearings of this type that I have come across are made of wear-resistant ductile iron. It’s possible that the matching is not suitable, which is why the performance has been poor. The key is whether the application of this thing is reasonable. Some manufacturers can provide on-site testing. It seems that the contact surface needs to be large enough, with sufficient lubrication; it is not suitable for high speeds. The key is to look at the specific applicable conditions.

I’m referring to the former one, the one with babbitt alloy

The technology for the former is already highly mature, so it can be used with confidence. Large steam turbine factories, turbocompressor manufacturers, as well as large low-speed piston machines for fans all use them, and the technology is highly mature.

So for domestic projects, aren’t there any good domestic brands for equipment bearings that use babbitt alloy, especially those designed for high speeds like Walkers?

So for domestic projects, aren’t there any good domestic brands for equipment bearings that use babbitt alloy, especially those designed for high speeds like Walkers?

So for domestic projects, aren’t there any good domestic brands for equipment bearings that use babbitt alloy, especially those designed for high speeds like Walkers?

Hehe, I remember that in the 1980s, thermal power plants and chemical factories generally had such professionals available; even intermediate-level welders were sufficient for the job. The materials needed were provided by relevant hardware suppliers, and they were of good quality. As for brands, I don’t understand them. I only know that this thing isn’t something that’s very cutting-edge. It’s better to wait for a more professional personnel to respond; I’m just someone who uses and maintains it. Not much is known about its working principle; it is only known that the black iron component is there to prevent damage to the spindle during the period when fuel supply is cut off and the machine stops operating. During installation at the beginning of use, for those tile surfaces with a curved shape, it is necessary to manually create oil pockets on the fuel-inlet side, which also constitutes part of the manufacturing process. Otherwise, other functions remain unknown. So, for what brand, if these two conditions are not an issue, it seems that it’s okay to do without this outer black oxide layer.

It’s unlikely that there has been much progress since the 1980s~ Bearings are a traditional product; when it comes to rolling elements, people think of brands like Wa Shu, Zhumadian, and Harbin, etc. But for this Wujin bearing, is it even necessary to use Wujin material? It’s unlikely. As far as I know, the technology involved in sliding bearings is quite complex. The turbines you mentioned might be able to be manufactured in China at the cost indicated in the drawings, but components like those used in compressors and high-speed gearboxes are not easy to find these days

Hehe, the tilting-type design has been around for quite some time now; nowadays they use the tile-type design instead. Oh, and there are also bearings that use gas lubrication. I don’t like to discuss such issues. I am suitable for repairers. The era of hanging tiles has not entirely passed. However, the use of such advanced bearings merely makes the contact point more effective; in the end, the principle and function remain unchanged. After all, they all require a lubricant as a friction medium.

I’ll learn from you!* ! The theory of technological emergence has a long history, but no one in our country has done a good job on it; it’s really disappointing