This video is a step by step instruction on changing spindle bearings on an Acme-Gridley screw machine. The demonstrator is is Don Anger, considered one of the top Acme service people in the world.
Part I: Removing the Spindle Bearings
Part II: Changing the Bearings
Part III: Installing New Spindle Bearings
Yesterday was an emotional day for me. I gave out end of the year bonus checks to the employees of my used machinery company, Graff-Pinkert, holding impromptu talks with each person after delivering each envelope. I thanked each person for their contribution, asked them how they could improve next year and how I could help them. Paternalistic, very old school.I found myself holding back my tears during some of the sessions. I scurried to an empty shop office to pull myself together — and wept. Some context. As I drove to work yesterday, I was wallowing in a sense of futility.
I normally deal in subtleties — close calls on whether to buy a machine, take a gamble, hire a new person, eat a piece of pie. But occasionally a deal comes along that is so breathtakingly clear you just shake your head and say YES! We are in one of those odd moments. When the handwriting on the wall is so clear even a blind man can read it. The investment incentive, Section 179 of the Federal Tax Code, can bring savings of more than a million dollars in taxes in the right situation, and is most likely ending in three weeks.
The photo above is a Graff-Pinkert ad in the Serial Number Reference Book For Metalworking Machinery 7th Edition from 1979. Graff-Pinkert & Co. has undergone a lot of changes since my grandfather Leonard Graff and his cousin Aaron Pinkert started the used machine tools business back in 1941. We've been in business almost three quarters of a century, and it's mind boggling how many multispindle screw machines we've sold and then ended up buying back decades later, which we then refurbish and sell to new customers.
I'm thankful for our 8-32 Euroturn (ZPS). Rigid, fast, accurate. A modern beautiful, multi-spindle, almost as beautiful as the Czech women who live where it's built.
I'm thankful for traditional cutting oil. No, not the water soluble stuff which destroys beautiful machine tools.
I'm thankful to live and work in a country which still manufactures many of the best parts in the world at competitive prices.
I'm thankful for all our Wickmans, solid, high precision multi-spindle screw machines, great for quick changeover. Why buy any other machine?
Business owners, “the moving walkway is now ending.” The punch bowl is being pulled away. Section 179 of the United States Tax Code will essentially evaporate December 31 of this year. It is really going to end, and you are going to kick yourself if you blew big money by not taking advantage of the best goodie package the awful Feds have provided in decades. This is really quite important for any small business that needs a truck, crane or parts cleaner. Even a screw machine or a hundred iPads.
"The Davenport screw machine won World War II," Massimo Bonaldo said to me, as we ate kebabs in a rural village 40 minutes from the center of Hannover, where I was to attend the EMO Machine Tool Show the following day. Massimo is the technical manager of Tajmac-MTM S.p.A., the Italian headquarters of ZPS, one of Europe's top machine tool builders.
I had trekked throughout Germany the previous two weeks, visiting elite manufacturers and machine tools dealers. I had walked through state-of- the-art shops, packed with the latest INDEX MS machines, Hydromats and CNC machining centers. And now I found myself hanging out at midnight with three Italian ZPS technicians in middle-of-nowhere Germany, with one of the company's top engineers giving me a history lesson on the good old noisy American Davenport. The reason the Davenport won World War II for the Allies, Massimo explained, was that the Germans were using European single-spindle machines to bang out ammunition, while the Americans spit out bullets like mad with five-spindle Davenports. Times have changed since the days of American multi-spindle domination. Today Germany is the place to be to see tons of manufacturers full of the best multi-spindle screw machines on the market. That's why Graff-Pinkert sent me there to find machines.
The first shop I visited on my trip was Brehm Präzisionstechnik GmbH & Co. KG, about 100 km southeast of Stuttgart. ...
“What goes around, comes around.” It’s a dumb cliché, but it’s what I am seeing in the screw machine business today.
The cyclicality of business is playing out as the auto industry in North America pushes toward the magical 16 million units a year mark. Thank god for the F-150, now the “best selling car or truck in America.” Tradesmen are buying, businesses are buying, even Aunt Millie is buying a vehicle today, and most of them are put together in North America with millions of perfectly turned components also made here.
Add a revival in home building and all those unleaded brass fittings needed and it means a lot of spindles turning, after the up and down gutting of the traditional turned parts world over the last 15 years.
My guess is that one third of the shops that ran multi-spindle automatics have gone away since the wholesale outsourcing trend to China began in the late 1990s.
Tim Haendle was pleased with himself when I talked to him Wednesday. He had bought 100 carbide inserts – used of course – for a hundred bucks at a Hoff Online Auctions Internet sale of a screw machine shop in St. Paul, Minnesota. He’ll regrind them for use on one of the 22 National Acmes he runs in his shop, buried in a forest in Mendocino County, 100 miles north of San Francisco.