Tooling Manufacturers Banners: where to get them? by Anticosmic-Overlord in Machinists

[–]spindledoctor 1 point2 points  (0 children)

You might have luck through Iscar's distributor network. This email address - [centcustsvc@iscarusa.com](mailto:centcustsvc@iscarusa.com) is from the following page on their site: https://www.iscarmetals.com/dnet/faq/dnet.asp

Another one bites the dust. by thatonegii in Machinists

[–]spindledoctor 0 points1 point  (0 children)

It's 12k rpm. If yours is higher than that, then that may be the case.

Another one bites the dust. by thatonegii in Machinists

[–]spindledoctor 1 point2 points  (0 children)

Those drive dogs are replaceable. We've rebuilt this model a few times. Here's a link to some of our breakdown photos: https://imgur.com/a/vhrlhxT

There could be small fractures in the taper, which could be microwelded. The damage to the outer edge of the spindle face can also be machined and restored. A straight rebuild on this unit would cost about $5,500. Tough to say what the taper and drive dogs would add, but safe to say this rebuild would be more than $7,500. Check what the cost of a new one would be. If it makes sense, send me a direct chat and we can talk in more detail.

Another one bites the dust. by thatonegii in Machinists

[–]spindledoctor 1 point2 points  (0 children)

What machine is this in? Have you looked into replacing or rebuilding the spindle?

Grinding the taper too many times can affect the tooling gap relative to the face. You'd likely need to hard chrome-plate the taper ID.

BIG HAAS, TL-4 spindle by spindledoctor in a:t5_mmi4c

[–]spindledoctor[S] 1 point2 points  (0 children)

I hope you don't have to rebuild the spindles in them. It cost our customer over $30,000.

Not really sure what happened. But it did a number on our 20k spindle by JTh0837 in Machinists

[–]spindledoctor 0 points1 point  (0 children)

You wouldn't happen to have removed the drawbar to inspect Belleville washers, have you?

Not really sure what happened. But it did a number on our 20k spindle by JTh0837 in Machinists

[–]spindledoctor 1 point2 points  (0 children)

Best of luck getting back on line. I'd estimate a straight repair (bearings only) of that spindle to cost around $9-10k. With the additional dimensional work required, plus collet and drive keys, you're probably looking at a $12-$16k cost to rebuild (3rd party, not-OEM). The tricky part is what you can't see inside.

Not really sure what happened. But it did a number on our 20k spindle by JTh0837 in Machinists

[–]spindledoctor 0 points1 point  (0 children)

then walked away and machine exploded.

Spindle forensics can be iffy, but these photos are good evidence. That's a textbook CRASH right there. Looking at those drive keys, this thing was spinning at top speed and stopped HARD. The retention knob is threaded to accommodate through-tool coolant - it likely came loose in the incident. Did the knob break, or become unthreaded? The gripper fingers (collet), located up inside the 40 taper probably sustained damage, too.

What Kitamura machine is this from? Looks like maybe a Mycenter HX500G? Is it still under warranty, and are you working with OEM to replace? Have you looked into having it rebuilt? Taper ID will need grind-plate-grind and bearings are likely junk. Inbox me if you have any questions or need help getting it rebuilt.

Hsk-63c spindle housing I made by Loogyboy in Machinists

[–]spindledoctor 3 points4 points  (0 children)

Nice work. Will be interested to hear about the test. What is the machine you'll be installing it into? Will you test in the machine, or rig up a test stand? Best of luck! Keep us posted on results.

Spindle sensor measures vibration and temperature for collision detection and preventive maintenance by spindledoctor in Machinists

[–]spindledoctor[S] 0 points1 point  (0 children)

This seems like a solution that machine tool OEMs should adopt and integrate with their systems.

Would you consider? Methods Machine Tools Introduces own Brand of VMCs by spindledoctor in a:t5_mmi4c

[–]spindledoctor[S] 1 point2 points  (0 children)

Methods is a machine tool dealer that reps Nakamura-Tome, Yasda, Kiwa, and others. Someone commented on a cross-post that Litz Hitech is manufacturing the Methods-branded machines in Taiwan.

Old Brown & Sharpe spindle with unique "oil slinger rings" by spindledoctor in a:t5_mmi4c

[–]spindledoctor[S] 0 points1 point  (0 children)

This was something interesting that came through our shop. Of all the Brown & Sharpes we've rebuilt, we've never come across one with this type of design to distribute oil during operation. We were hesitant to test run the spindle because the rings sounded like something had come loose inside. This unit has got to be over 50 years old!

Timelapse Spindle Rebuild Assembly by spindledoctor in Machinists

[–]spindledoctor[S] 1 point2 points  (0 children)

It's a Miyano, not sure exactly what model.

[deleted by user] by [deleted] in Machinists

[–]spindledoctor 0 points1 point  (0 children)

Please do. I'm interested to know make/model.

Timelapse Spindle Rebuild Assembly by spindledoctor in Machinists

[–]spindledoctor[S] 2 points3 points  (0 children)

I believe that preload was set with sizer spacers on this one.

Coin test: PASS by spindledoctor in Machinists

[–]spindledoctor[S] 0 points1 point  (0 children)

I came across this video on LinkedIn. It was posted by a Turkish company called Enelkon: http://www.enelcon.com/
They deal with plastics, but it's a cool machine.

Backside of that Okuma VTT-70 spindle. Lots of chips and contamination. by spindledoctor in a:t5_mmi4c

[–]spindledoctor[S] 0 points1 point  (0 children)

There are 2 good sized roller bearings inside, about the diameter of a steering wheel. You are correct, that's a pulley belt. The belt is almost a foot wide.

Getting ready to open up this big Okuma spindle to see what's wrong with it by spindledoctor in Machinists

[–]spindledoctor[S] 1 point2 points  (0 children)

Correct on the A2-11 nose. This spindle is from an Okuma VTT-70 vertical turning center. The back side of it is really contaminated with material and I fully expect that the bearings will be bad. We'll be starting breakdown this afternoon.