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Forum topic by DMiller posted 12-23-2017 09:26 PM 2751 views 0 times favorited 32 replies Add to Favorites Watch
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DMiller

434 posts in 676 days


12-23-2017 09:26 PM

Topic tags/keywords: lathe question turning

In the last 6 months I have taken up woodturning, and have been loving it. One thing that I replaced on the lathe was the tailstock center. I purchased a Grizzly H3403 live center (http://www.grizzly.com/products/Cupped-Live-Center-for-Wood-Lathe-MT1/H3403?utm_campaign=zPage&utm_source=grizzly.com), and after around a month of light use, the bearing cover came off and the center failed. I contacted Grizzly about the issue, and the sent me a new center free of charge. Again, today I was using the new center; within 30 minutes of use, the identical thing happened (it worked for around 25 minutes, and then in about 3 seconds, failed). My question is, am I doing something wrong to make this happen? I don’t want to contact Grizzly about this if it’s my own mistake. Any help is greatly appreciated! DMiller

-- Dale Miller Modesto, CA "I can do all things through Christ, which strengtheneth me." Philippians 4:13. "Woodworking minus patience equals firewood."


32 replies so far

View ralbuck's profile

ralbuck

5419 posts in 2470 days


#1 posted 12-23-2017 09:38 PM

AS a novice on a turning lathe; I have abused the hell out of the live center on my El Cheapo H-F lathe and had no issues at all. I think G managed to get a bad bunch! I also think they will treat you right; so please do notify them again. Then ask them too if it could be your error.

-- Wood rescue is good for the environment and me! just rjR

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DMiller

434 posts in 676 days


#2 posted 12-23-2017 09:59 PM

Thanks, Ralbuck! I will probably go ahead then and contact Grizzly. I will say that their customer service was 5 star; bust as for their product, 1 star. Thanks for the help.

-- Dale Miller Modesto, CA "I can do all things through Christ, which strengtheneth me." Philippians 4:13. "Woodworking minus patience equals firewood."

View TheDane's profile

TheDane

5552 posts in 3866 days


#3 posted 12-23-2017 10:11 PM

It is not your fault.

Forget about the Grizzly live centers and go with a quality one from Woodworker’s Supply:
https://woodworker.com/woodtek-live-center-2mt-mssu-159-164.asp?search=live%20center&searchmode=2

We have 12 lathes in our school’s woodturning studio that are outfitted with this live center and have never had an issue with any of them.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

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MrUnix

7051 posts in 2402 days


#4 posted 12-23-2017 10:52 PM

Bearing cover? I’m having a hard time understanding what that means… live centers are about as simple as it gets – a MT arbor with a bearing stuck on the end. I can see how the bearing may fail given Grizzlys history of using the cheapest ones on the planet, but the simple fix is to just replace it with a quality one. Can you post a picture of how yours failed?

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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DMiller

434 posts in 676 days


#5 posted 12-24-2017 12:06 AM

Thanks for the replies, Gerry and Brad! Gerry, thanks for the suggestion- I forgot to mention my lathe is MT1, thanks for the the suggestion though! Brad, now that I think of it, I’ve never seen a bearing with a cover till now!

The last picture primarily shows the “bearing cover.” Sorry about the bad pics- my camera isn’t all that great. Hope this helps explain what you were wanting to see. Thanks again for the replies. DMiller

-- Dale Miller Modesto, CA "I can do all things through Christ, which strengtheneth me." Philippians 4:13. "Woodworking minus patience equals firewood."

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MrUnix

7051 posts in 2402 days


#6 posted 12-24-2017 12:10 AM

Yeah, cheap ass bearings. You can make it like new by replacing the bearing with a good one – then you will have two (three?).

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View John Smith's profile

John Smith

1488 posts in 366 days


#7 posted 12-24-2017 12:35 AM

I am thrown off by the color of the tail stock. it looks burned and brown
compared to the new one that is bright and shiny.

.

-- I started out with nothing in life ~ and still have most of it left.

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DMiller

434 posts in 676 days


#8 posted 12-24-2017 12:50 AM

John, the center was bright and shiny when I got it. It looks burned and brown because of the grease/wd40 that was used in getting the center out. It would come right off if I wiped it with a damp paper cloth….thanks for the reply!

-- Dale Miller Modesto, CA "I can do all things through Christ, which strengtheneth me." Philippians 4:13. "Woodworking minus patience equals firewood."

View Richard Lee's profile

Richard Lee

199 posts in 978 days


#9 posted 12-24-2017 02:02 AM

http://www.royalproducts.com/content/files/products/HP_QB_Live_Center.pdf
You paid $16.00 for it a good one costs about $600.

Good centers cost good money,but yours should not have failed that easily unless your abusing it.

View woodbutcherbynight's profile

woodbutcherbynight

5720 posts in 2612 days


#10 posted 12-24-2017 02:05 AM

Get a quality one and enjoy trouble free turning. If Grizzly gives you a 2 nd one keep it as a back up.

-- Live to tell the stories, they sound better that way.

View John Smith's profile

John Smith

1488 posts in 366 days


#11 posted 12-24-2017 02:12 AM

It looks burned and brown because of the grease/wd40 that was used in getting the center out.

Dale – I have been turning stuff on a lathe for a very long time…... not many times, but for a long time.
over the years, I don’t think I ever had the tail center into the piece being turned so tight that it took
so much lubrication and force to get it out. (matter of fact, I don’t think you are supposed to even oil
or grease a Morse Taper). [or put a cold center into a warm collet/spindle]
question now arises: how much pressure do you put on the tail stock ?
granted, cheap bearings from China don’t take much to disintegrate as those have.
do you use a steel rod to tap the centers from the back through the spindle to remove them ?
just exploring more areas as to how your bearings have failed two in a row.
what live centers have you used in the past ?

.

-- I started out with nothing in life ~ and still have most of it left.

View DMiller's profile

DMiller

434 posts in 676 days


#12 posted 12-24-2017 03:25 AM


It looks burned and brown because of the grease/wd40 that was used in getting the center out.

(matter of fact, I don t think you are supposed to even oil
or grease a Morse Taper). [or put a cold center into a warm collet/spindle]
question now arises: how much pressure do you put on the tail stock?

- John Smith

John- thanks for the reply. I’m not fully sure what you mean by “[or put a cold center into a warm collet/spindle].” Are you supposed to heat the center before placing in on the lathe? Yes, I do use a steel rod to tap the centers from the back through the spindle to remove them. I’m fairly new to turning- these are the first centers I have purchased and used. The grease/WD40 in the center was there from when I was trying to get the center that came with/on the lathe out. It is an older Craftsman lathe I restored. (http://lumberjocks.com/projects/340089) Thanks for the replies and help! Dale

-- Dale Miller Modesto, CA "I can do all things through Christ, which strengtheneth me." Philippians 4:13. "Woodworking minus patience equals firewood."

View John Smith's profile

John Smith

1488 posts in 366 days


#13 posted 12-24-2017 03:50 AM

wow – that looks like the one my brother had back in high school in 1960 LOL.
well worth saving if all the bearings behave properly for you.

It has never happened to me, but I have read that if you put a cold center into a warm spindle,
after you use it and it warms up, it may be extremely difficult to remove.
no – do not warm up anything prior to inserting it into the spindle. just keep everything together
so they will be the same temperature when you do use it and you will be good-to-go.

sort of like putting bearings in the oven and the bearing carrier in the freezer before marrying them together.
one shrinks and the other expands. then when they are assembled and acclimates – it becomes a permanent assembly.
hope you get a new DEPENDABLE live center soon !!!

-- I started out with nothing in life ~ and still have most of it left.

View Woodknack's profile

Woodknack

12431 posts in 2583 days


#14 posted 12-24-2017 03:59 AM

Probably cheap bearings combined with excessive vibration those Craftsman tube lathes are known to vibrate.

-- Rick M, http://thewoodknack.blogspot.com/

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DMiller

434 posts in 676 days


#15 posted 12-24-2017 05:55 AM

Thanks for the replies, guys! I’m glad to know about center heat/cooling effects. The lathe came from my great uncle- the center that was in it originally had not been removed for years. Thanks for the help….

-- Dale Miller Modesto, CA "I can do all things through Christ, which strengtheneth me." Philippians 4:13. "Woodworking minus patience equals firewood."

showing 1 through 15 of 32 replies

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