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Bearings

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BarryMobbs:
 I need to make some wooden bearing bushes for an old agricultural implement. They will be split and mounted in cast iron split plummer block housings. There is provision for grease lubrication.
 Does anybody know what wood might have been used originally.
 I want to use a native species and have some elm which I know was used to make wheel hubs, would this be suitable?

I look forward to your comments:   Barry

Bryan Milham:
Lignum Vitae was the wood of choice for wooden bearings as it's hard wearing and self lubricating. Also used as Hull Glands on Ships & Boats for where the prop-shaft goes through the Hull to the propeller.
I believe it's hard to source now, your best bet is an old wooden Lawn Bowl.

Elm was used a wagon wheel hubs,

They are the two that immediately spring to mind ,you need to give us a clue as to the workload they will face to be any more specific.

Andy Coates:
I'd go for Lignum too. At a push greenheart might also serve. If it's prone to wear I think Elm might be a little prone.

Don't forget to photograph the finished items and show us!

Roger Groom:
Hi Barry
What about Apple? It was used in mill gearwork.
Roger G

thebowlerhattedturner:
Hi Barry,
            like the others have said Lignum or Greenheart are good. Canadian Rock Maple was also used in industry for rollers and suchlike, it can handle grease fairly well too.
Regards
John BHT

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