Pitting On Upper Fork Bushing

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I'm doing my first fork rebuild and the kit just arrived, I was struck by how heavily pitted the upper fork bushings are - is this normal? I'd like to get a second opinion before sending them back for replacements.

Pitting On Upper Fork Bushing


Pitting On Upper Fork Bushing


Pitting On Upper Fork Bushing


Pitting On Upper Fork Bushing
 
It's not pitted, it's made from compressing metal powder into shape and then fused by heat, a process called sintering. The pitting is the gaps left between the powder particles, very useful for oil retention.
 
Kommando is correct the material used for fork bushes is oilite which is a form of sintered self lubricating bronze all those lovely holes retain lube for smooth operation
they do look a little crude but still possibly the best material for application
 
kommando said:
It's not pitted, it's made from compressing metal powder into shape and then fused by heat, a process called sintering. The pitting is the gaps left between the powder particles, very useful for oil retention.
Click to expand...

Frankie17 said:
Kommando is correct the material used for fork bushes is oilite which is a form of sintered self lubricating bronze all those lovely holes retain lube for smooth operation
they do look a little crude but still possibly the best material for application
Click to expand...

Thanks for letting me know guys, I've been researching it just now and it's fascinating. So glad I didn't send an angry email to the supplier!
 
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