My 12" Yuasa has dual locks on the table and another lock on the worm gear. It does not move at all when machining. The only bad part is it is very heavy and can be a real pain to put it on the mill.
The main deciding factor for which clearance to use is are the bearings pressed on to the shaft which will stretch the inner race a tiny bit and is the outer race also a press fit which will shrink the outer race a tiny bit? If so then some of the clearance will disappear and you need C3...
I don't think there is any alloy of brass or bronze that does not tarnish.
The most corrosion resistant bronze is nickel aluminum bronze C955 as far as I know. It is commonly used when the bronze will be exposed to sea water. But even it will tarnish in air over time. Plumbing parts and...
In the USA it would be a Victor 1630 but why are all the controls on the carriage reversed? Does this one have a inch or metric lead screw? Looks to be of late 1970's vintage and the emergency stop switch has been added.
I have a Victor 1640 made in 1976 and yes many parts and the manuals are...
A 4000 psi hydraulic gear pump failed. Bearings wore out and the gears machined away the body so not rebuild-able. Not sure why it failed as it only had 1400 hours on it and the oil and filter were always changed at the recommended intervals. My local dealer wanted $800 for a new pump and I...
My last auction I was interested in a Sunnen honing machine that was newer than the one I have. It only needed to be moved 1/2 mile to my shop. The cost to move it was $600 and as there was no loading dock I would also be charged a lift gate fee of $150 at pick up and delivery. So $900 to move...
EDM, I was wondering about that but thought it would be expensive?
As for using a surface grinder to get through the case, did not think about that. I have an old B&S #2 surface grinder but don't have any small wheels for it. I also have an air powered grinding spindle for my mill that can hold...
So I screwed up and forgot one woodruff key seat I needed on a 8620 shaft. I have already case hardened it to rockwell C 62 and abut .020" thick case. All my key seat cutters are HSS and I am guessing they won't work for this? So will a solid carbide cutter work or do I need to start over? The...
My father worked at Rocketdyne in the 1960's and told me many stories about the Santa Susana test area. He was an engineer working on the fuel pumps for the F-1 engine on the Apollo mission.
Prior to that he was designing the fuel pumps for the X-15 while working for Hamilton Standard in...
I would not hesitate to buy a used rebuilt Bridgeport. My current one which is a 9 x 48 series 1, 2HP made in 1980 was rebuilt to as good as new about ten years ago and I bought it for $4000.
That was a deal. Customer sent out to be rebuilt and it took too long so they bought a new one and had...
Although only a single cylinder bike, it has four main bearings. Both sides of the crank have a a ball and roller bearing. As it was designed to haul a sidecar and be abused constantly pulling lots of weight the crank assembly is way over designed. So the crank does not flex at all with the...
OK, in reply to multiple people.
Yes the flywheels are steel (actually forged, I thought they were cast). BSA also made cast iron flywheels for the same bike. It just depends on what year it was made.
The motor is a M20, so 500cc, side valve with 13HP at 4200 RPM. It has now been turned in to...
Yes, I don't care I am doing it anyway is correct!
Motor started out at 500cc with 13 HP on 4.9 to 1 compression ratio. Fitted a different BSA crank with a longer stroke and it is was 600cc with 15 HP. Then bored it as big as I could with a 7 to 1 compression and it is now a 720cc and has 20...
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