ER20 Spindles need to know if theres any interest ...

[earlyrider]

Yeah, I'll try a new bearing first, then if necessary, try the loctite.

[ekimnamyr]

Loc Tite Has a product called retaining compound for that purpose, It's number is 609, It says it will take up to .015 slop . I have used it on other applications with great sucess. I am using it currently on the Y axis motor gearbox assy, Bearings. Has not been done long enough to give a success or failure results report.
Just an FYI.

[unitedcases]

Loc Tite Has a product called retaining compound for that purpose, It's number is 609, It says it will take up to .015 slop . I have used it on other applications with great sucess. I am using it currently on the Y axis motor gearbox assy, Bearings. Has not been done long enough to give a success or failure results report.
Just an FYI.

Forgive me. I know you said on the bearings. Where exactly. Between the y shaft and the bearings?

[ekimnamyr]

Between shaft and inner race of bearing, It makes a bond so that the bearing will do its job and turn ,thus preventing shaft from turning insidethe race causing shaft to wear undersize

[bergerud]

unitedcases has reported the lower bearing on his ER20 spindle went out after 60 hours. I do not know if it was just a cheap bad bearing, if the tolerance ring fell out, or what. I hope it is not an indication that the lower bearing is not big enough. We may have to use higher quality bearings, maybe even ceramic bearings. I have put over 100 hours on my bearing which was the cheapest (for the sake of testing) bearing I could find ($1). Test for play once in awhile. Remember, this is an experiment, keep your eye on the bearing.

If you think the bearing is loosing its grease and heating up, you may want to change it out for one like:

http://www.vxb.com/page/bearings/PROD/Kit7500

Note also the $25 ceramic one.

(I bought the $51 ceramic one for my machine when all the testing is done.)

[unitedcases]

To add to what Dan was saying I do mostly 8+ hour carves. It is possible it got too hot. I am going to buy the next stage up bearing, quality wise and see how that works. I will note the time as well. I don't know how close that 60 hours is, if anything it is a low estimate.

[ktjwilliams]

Hey Dan ,,, just FYI..,,, My truck has been getting pretty hot ... I noticed on my last carve that when I went to change the cutter, I couldn't even touch it ... But didn't make any noise or have any play ... I always keep a variety of bearings around so I'm just gonna change it out ....

[bergerud]

I think the bearings I sent out are no good. They have 13 balls instead of 14 and, I think, poor seals and grease. (They we advertised as ABEC-3 motor quality.) I was going to send out extra 6804ZZ bearings when I sent out the spindles just in case. I did for Henry and Roger. Everyone should switch out the bearing to a 6804ZZ:

http://www.vxb.com/page/bearings/PROD/Kit7500

(OMG, a recall notice!)

[henry1]

I think the bearings I sent out are no good. They have 13 balls instead of 14 and, I think, poor seals and grease. (They we advertised as ABEC-3 motor quality.) I was going to send out extra 6804ZZ bearings when I sent out the spindles just in case. I did for Henry and Roger. Everyone should switch out the bearing to a 6804ZZ:

http://www.vxb.com/page/bearings/PROD/Kit7500

(OMG, a recall notice!)

Do I have to order some bearing , and change my bearing out Bergerud or meant you already sent one to me and roger

[ktjwilliams]

What about these Dan ... I've used this places bearings in the past and they seem pretty good... Plus there like $ 6.00 cheaper ... I usually order 10 cause I use them for other things... So you get a bigger discount on 10 or more ...
http://www.thebigbearingstore.com/se...al-Ball/Detail