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Not sure why anyone would want to fit needle rollers, they are only suitable for complete rotational applications, not the small angular movement on a swing arm. Look at the damage inflicted on later Mini radius arms when some bean counter thought that needle rollers were better. Phos bronze every time for me. BTW phos bronze is not porous, only sintered ‘Oilite bronze’ is and that’s the material which should be soaked in oil overnight before fitting. Also Oilite bronze should never be reamed to size as it blocks the minute oil holes which give it it’s lubing properties.Ian
No Julie you are dead right, that is a phosphor bronze but no amount of immersion in oil will make it porous. That’s why I made the distinction between it and Oilite bronze which is designed to hold oil. Oilite is made by sintering which a process whereby the material is ground and powdered into the right consistency and then forced into a mould under extreme temperature and pressure. It’s the same way they make tungsten carbide tips for tools. I think Oilite was invented by Chrysler.Phosphor bronze will be fine for those bushes though.Ian
Never did like Quiche, ever since they stopped calling it bacon and egg pie 🤓Either of those bronzes but please no needle rollers,Ian