Hi. "copper"? It's best if you attach here a picture, and we will see what happens there.
Chips of any kind we will usually be found in the Strainer/Screen , which captures them with high efficiency, and not in the filter.
1 - 7 of 17 Posts
Chips of any kind we will usually be found in the Strainer/Screen , which captures them with high efficiency, and not in the filter.
Friction bearings are often made of bronze (coper colored). In CBR250R 2011 there is no bronze friction bearings (see photos from the (Partzilla website LINK1 LINK2). There may be a bronze retainers in some of the gear box ball bearings. The Big-Hand in the CBR is mounted on the crank shaft with needle bearing, and on the Piston-Pin with a friction bearing (Direct contact without additional "bronze" insert). Our Big-Hand is made of one part (without a clamp). I believe that the brown color that can be seen in the pictures of our friend is as a result of overheating of the metal (not bronze metal).
Answer: "A"(The Main) and "B" are a Friction bearing. "C" is Needle bearing.
But that is not the question.
The question was: What color is the compound of the materials from which they are made.
The question is about their color?
A: The original color of the Crankshaft Main Journals is silver, Not "coper" Not "bronze".
The color seen in the Chrisbud410's pictures is probably related to the overheating of the metal.
Above 300 degrees the metal begins to change its color (Metallurgy matter):
It Does not have to be just the metal of the main bearings. There are more options. The true story can only be discovered when the engine is disassembled.
Attachments
1 - 7 of 17 Posts
