Needle bearings or bushings?
I would choose bushings or plain bearings... why?
My reasons:
1) my 1st engine got one of those needles stuck between the piston and the cylinder when the needle bearing disintegrated inside the engine, which made the piston and cylinder inseparable.
2) there is a lot of play on the needle bearings that may be contributing to a lot of vibrations and short life span of the engine, and I'm really not comfortable with it.
3) Bushings would continue to work even when it's worn out, although not as smooth, but it might still bring you back home.
4) I noticed that the needle bearing at the bottom of the crank does not spin since it's machine pressed between the cranks and it's stuck there. I think the needle bearings should spin freely here, then it means that a gap must be made when it is machine pressed.
5) Needle bearings tend to have flat sides under extreme load and heat that would increase the vibrations much further.
So, what do you think? needle bearings or bushings?
Note that the durability and quality of the bushings is highly dependent on the type of material that is used. And there are several different types for different applications.
Oh, and here's an article about the subject matter:
Needle bearings or solid bushings?
I would choose bushings or plain bearings... why?
My reasons:
1) my 1st engine got one of those needles stuck between the piston and the cylinder when the needle bearing disintegrated inside the engine, which made the piston and cylinder inseparable.
2) there is a lot of play on the needle bearings that may be contributing to a lot of vibrations and short life span of the engine, and I'm really not comfortable with it.
3) Bushings would continue to work even when it's worn out, although not as smooth, but it might still bring you back home.
4) I noticed that the needle bearing at the bottom of the crank does not spin since it's machine pressed between the cranks and it's stuck there. I think the needle bearings should spin freely here, then it means that a gap must be made when it is machine pressed.
5) Needle bearings tend to have flat sides under extreme load and heat that would increase the vibrations much further.
So, what do you think? needle bearings or bushings?
Note that the durability and quality of the bushings is highly dependent on the type of material that is used. And there are several different types for different applications.
Oh, and here's an article about the subject matter:
Needle bearings or solid bushings?
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