40,000lb. Trunnion Bearing Journal Repair. Big Lathe.

[partsproduction]

Fantastic, and your description of that Skoda, I had no idea anyone made a horizontal lathe that big, an 11' diameter X 50'!

[davetileguy]

I can still see your email oops!!

[menormice2]

I dont suppose you could show a vid of the grining machine for this? I cant believe you can take that bigger cut, how big are the tips on these things?

[lexichronicle2]

I like the clearance. :P

[douro20]

I've seen CNC lathes even bigger than that one. And vertical turret lathes whose tables are nearly fifty feet in diameter.

[gst69man]

good vid thanks

[jayk4406]

Beautiful Machine. I can grind that bed within one tenth of a thousanth of an inch (.0001") over 32 ft, Kellar machine rebuild, We house one of the biggest slydway grinders in north america.

[shayh25]

Nice Machine, let me know when its time for a rebuild! I'm equipped to comfortabley grind slydways, tables and all other grinding projects up to 32 feet, over 20 feet in ONE stroke.

[levisalo]

The ol' TNMG. My favorite tool! good video, nice job

[joeblo201]

awsome

[notrichyrich]

Nice work man! Were you takin 5/8" 0.625 DOC? AWESOME! Used to run the same machine same bearing cuts for lift pump impellers, took longer to set-up than to make the cuts but it was awesome to see some young guy come up with his jaw hanging down not believing the size of the parts the journeymen got to do. Never give up!

[robindorf55]

I used to work for Timkin Bearings. I designed many of their high stress load bearings for the commercial bridge industry. Need I say more? The bearings we cut were over 36' in diameter and over 8' width. Boy, did I have my work cut out for me. All 4160 high carbon steel. (before hardening and precision grinding). It was a nightmare....

[THurley420]

Timkens has almost the same if not close, I specailize in 84"

[aron311]

god thats a big lathe makes the old harrison m500's i'm learning on look silly

[JohnScottV]

It's really a big ol baby. easy to operate. Can be a bear to set-up sometimes. I love running it. We've got one lathe that is even bigger. It will swing about 135" x 50' long. It's not as accurate as the Skoda, but does a pretty good job. I'll try to get some photos of it on here soon. Thanks for the comment,

Scott

[1693caterpillar]

@JohnScottV Stupid question, how do you account for the amount of sag, when turning between centres with that amount of weight, and hold your tolerances?