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Lathe Might Need New Bearings!!!

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Forum topic by gator9t9 posted 03-10-2017 11:00 PM 783 views 0 times favorited 26 replies Add to Favorites Watch
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gator9t9

330 posts in 3542 days


03-10-2017 11:00 PM

So I have a 1 yr old Rikon 70-220 VSR lathe. I bought this lathe new. It bogs down under pressure from me…Not so much under higher
Speeds….but still bogs down. And from when it was brand new it has made noizes like tiny marbles
Are inside the motor or from headstock spindle.

I am not the greatest sharpener on the block…..but i am better than a year ago
I take that back as I may be the best sharpener of lathe tools on my block…...

So this could be operator error…...but the operator is not causing the marbles sounds.
Which makes me think. Bearings.

Any and all opinions and thoughts, advice, ramblings, suggestions, etc…... will be greatly appreciated.

Thnx

Mike in Bonney lake, Wa

-- Mike in Bonney Lake " If you are real real real good your whole life, You 'll be buried in a curly maple coffin when you die."


26 replies so far

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mike02130

167 posts in 510 days


#1 posted 03-10-2017 11:13 PM

With the lathe running and sounds like marbles, put a bit of sideways pressure on the spindle. If the noise stops then it’s most likely the bearings. I don’t know if bad bearings would bog it down.

-- Google first, search forums second, ask questions later.

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WhyMe

910 posts in 1399 days


#2 posted 03-10-2017 11:14 PM

Take the belt off and spin the head stock and motor separately by hand. You should be able to hear and feel if the bearings are bad. Should be fairly quiet and smooth when spinning by hand, if not bearings are going bad.

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bigblockyeti

4697 posts in 1558 days


#3 posted 03-10-2017 11:22 PM

That seems very premature, does it have any factory warranty remaining? From my experience lathe head stock bearings can be quite expensive, not sure about Rikon specifically but lathes in general.

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gator9t9

330 posts in 3542 days


#4 posted 03-11-2017 12:31 AM

I forgot to say the bogging down is happening while turning wood….
And I am on my way out now to try the “sideways pressure test”
Back in 5..

Thanks all

Keep those cards and notes rolling in….

Mike

-- Mike in Bonney Lake " If you are real real real good your whole life, You 'll be buried in a curly maple coffin when you die."

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gator9t9

330 posts in 3542 days


#5 posted 03-11-2017 12:49 AM

Maybe good luck here…....

Trying the “Sideways Pressure” test was a tuff one as I found the marbles to still
Be present…..
But when I took the belt off ” Voila!”....no marbles!!!!!!!! YAY….....

I will be turning again tomorrow….and wii check the “bogging down” maybe it is a too tight
Belt causing my prob.

As for the price of bearings…....I have seen them for only about $7.00 -$10.00. A piece Which is not bad…..
Do not remember where I saw that…tho

Thanks all again. The LJ way solves another one hopefully….

Later

Mike

-- Mike in Bonney Lake " If you are real real real good your whole life, You 'll be buried in a curly maple coffin when you die."

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Rick_M

10634 posts in 2218 days


#6 posted 03-11-2017 12:53 AM

It’ll have radial bearings, probably 6000 series. I’ve changed bearings in a few lathes, it’s no big deal. Don’t use the cheap roller skate bearings, buy something quality like NTN.

-- http://thewoodknack.blogspot.com/

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hairy

2586 posts in 3370 days


#7 posted 03-11-2017 01:45 PM

You can use a solid wood spindle as a stethoscope. Don’t touch any moving parts. Put one end against the housing and the other up to your ear. It works.

You may be tightening the tailstock too much.

-- My reality check bounced...

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gator9t9

330 posts in 3542 days


#8 posted 03-11-2017 07:26 PM

Thank you all for you great suggestions….

Mlyle

-- Mike in Bonney Lake " If you are real real real good your whole life, You 'll be buried in a curly maple coffin when you die."

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WhyMe

910 posts in 1399 days


#9 posted 03-11-2017 08:13 PM

Be sure to buy name brand bearings. I recently purchased some bearings for a jointer from a site call VBX.com and got their brand bearing and they were junk. I ended up getting MRC bearings, night and day difference in quality.

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Rick_M

10634 posts in 2218 days


#10 posted 03-12-2017 07:47 AM

Here is a list of bearing manufacturers that I buy for my machines. My hobby is woodworking, not replacing bearings, so I spend a little more and do it a lot less often. I make sure the bearing comes from the US, Germany, or Japan; no China bearings for me. If you really need to stretch a dollar, I’ve had good luck buying bearings from ebay. Just look for a reputable seller with good feedback.

• Timken/Fafnir
• NSK
• NTN
• FAG
• SKF
• Nachi
• Koyo (JTEKT)

-- http://thewoodknack.blogspot.com/

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WhyMe

910 posts in 1399 days


#11 posted 03-12-2017 02:32 PM

MRC is a SKF company. The MRC bearings I got were marked made in France.

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Rick_M

10634 posts in 2218 days


#12 posted 03-12-2017 07:14 PM

Yeah I didn’t mean to imply anything negative about MRC and I’ll add it to my list, but when they show up in my searches, they are always many times the cost of other brands, for no apparent reason and I can’t always verify COO. So if the choice is between a $15 NTN from Japan and a $35 MRC unmarked, the NSK is an easy choice. I have bought other brands, bearings for the Comet II were INA, made in Taiwan. Once I reluctantly bought an NSK China bearing because it was OEM and unusual (6002DW). DW is a thin walled rubber sealed bearing that falls between ZZ and RS, it has less friction but good dust protection, not common. But I always go for the top brands first, those I previously listed.

-- http://thewoodknack.blogspot.com/

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gator9t9

330 posts in 3542 days


#13 posted 03-12-2017 08:05 PM

I turned a maple platter for about 2 hrs yesterday. I was hoping the marbles sounds had gone away. Buti was not that
Lucky…..as the marbling continues..
The bogging down of the headstock spindle did quit with lessoning the pressure on the belt lock.

That said..

I now do believe I need new bearings…as the noise co m ing from the headstock can be only bearings.

So that brings up a new question for me….how does one order bearings?
I have a # number for the bearings. 6204-R5….listed on the bearing itself. .and I have the mfgs # from the
Parts list…..I emailed Rikon. They have not responded yet….I will call them tomorrow.

Tho these bearings did not last long and I am not sure I want to replace them with the same bearings that
Rikon put in my lathe…

I do not want to remove the onboard bearings just yet as I am not ready for the down time of
My lathe till I answer these questions.

Be very easy if I could just remove the pair of bearings an go down to the local lathe bearing store.
But I cant find that store in my town…ha

I think they have a id of 1/2”

All will be revealed soon I am sure…..

And soon I will upgrade to Powermatic. And the rikon will be a pen or buffing station

Again any any info and advice will help and I will be forever greatful.

Mike

-- Mike in Bonney Lake " If you are real real real good your whole life, You 'll be buried in a curly maple coffin when you die."

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OSU55

1425 posts in 1827 days


#14 posted 03-12-2017 08:41 PM

Just do a search for 6204-R5 bearing. A quick search showed prices of $2-$8. Check with local auto parts stores or farm machinery repair. They aren’t lathe bearings, there are caged ball bearings used in all kinds of equipment. You do want to replace them with double sealed bearings, i.e. rubber seal on each side.

Unless you did something very wrong and unusual to overload the bearings, they should not be going out. A “bad” one could have been installed by the factory (it happens, all mfg has a failure rate) or there could be a bigger issue with the lathe. If things come apart and go back together without issue, the new bearing will probably live a long and happy life.

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Rick_M

10634 posts in 2218 days


#15 posted 03-13-2017 12:59 AM

Rikon lathes have a history of bearings going early.

Are you sure it’s not 6204-RS. What brand is the bearing?

-- http://thewoodknack.blogspot.com/

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