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View Full Version : what grade of bronze for bushing?



najnielkp
12-14-2011, 06:37 AM
i have a hydraulic shear with a front operated back gauge. slides are horizontal with the acme screw along side. the slides are 2"dia bar. the bronze bushings have worn and need replacing. can anyone recommend a good grade of bronze or brass ? there are so many choices of them that i dont want to choose the wrong type. the shaft is easy to lube.

CCWKen
12-14-2011, 08:52 AM
I'd use common bearing bronze--SAE 660 (C93200). With little motion and load, they should last a long time even if dry. Cleanliness of the shaft is key. If the stop is supported only at two points (each side) with a cantilever load, cast iron might be better.

SGW
12-14-2011, 09:03 AM
They're probably a stock size. Just buy a couple of bronze bushings. If they are heavily loaded, solid bronze would probably be the way to go. If the load is lighter, you might consider Oilite bushings. If you do need to make them, I'll second CCWKen's recommendation of SAE 660 bearing bronze.

McMaster-Carr www.mcmaster.com sells a wide variety of bronze bushings, and bronze stock.

oldtiffie
12-14-2011, 04:46 PM
http://www.google.com.au/#hl=en&cp=10&gs_id=14&xhr=t&q=bearing+bronze&pf=p&sclient=psy-ab&rlz=1W1IRFC_enAU360&source=hp&pbx=1&oq=bearing+br&aq=0&aqi=g4&aql=&gs_sm=&gs_upl=&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=d59a4c52512fb83b&biw=1920&bih=813

najnielkp
12-14-2011, 09:00 PM
thanks for the recommendations.

duckman
12-15-2011, 12:53 AM
Take them out turn them over, re install the wear is only on one side now your good for another bunch of years.