have u heard of a lima loader
I'm guessing you're asking about wheel loaders? If so; yes. I've not only heard of them; but seen them working as well, although that was a very long time ago.
wwell we have one and need parts for it
I found this from Google Parts for Lima-Clark wheel loaders - http://www.minnpar.com/construction.cfm#J
Baldwin-Lima-Hamilton is the actual manufacturer you refer to. They were absorbed into Clark Machinery in the 1960's and largely disappeared from that point on. Clark no longer exists as a construction and mining machinery manufacturer, having been bought by Volvo and Ingersoll Rand. You might ask at a Volvo dealer if they carry or have access to parts for the loader, I seriously doubt IR would. Calling or emailing the parts house CM1995 detailed above might bring results. Your best bet might be to have a good machine shop either rebuild the part you need, or maybe construct an entirely new piece. Good Luck!
Which model do you have, and what parts are you looking for? How about posting a photo of the loader too? Something else you may want to consider is posting a classified ad on the Historical Construction Equipment Association website. http://www.hcea.net