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  #11  
Old 09-27-2018, 08:19 PM
Jim_in_PA Jim_in_PA is offline
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Yes, I did the deed today and that Z-axis was a pain in the posterior! Both I and the Stinger II had to be "contortionists" to get things done...unbelievable.

Thanks for this information, JP. (the zerks) There's gotta be a better way.
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  #12  
Old 09-30-2018, 09:55 PM
The real JP The real JP is offline
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Is this the hole you mean? I don't want to make a mistake on this.
If I poke it out and thread it, it will work?
Attached Images
File Type: jpg IMG_0010.jpg (86.8 KB, 93 views)
File Type: jpg IMG_0008.jpg (86.5 KB, 83 views)
File Type: jpg Zerk location..jpg (13.7 KB, 72 views)
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  #13  
Old 09-30-2018, 10:06 PM
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Gary Campbell Gary Campbell is offline
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JP...
The bearing block you show is not familiar to me. I cannot be sure that it is a HIWIN. It may be PMI-AMT. They may have different features.

IF, and I do say if, that is a lube port, tap it first with a M4 bottoming tap, blow it out, then puncture with a hot poker.
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  #14  
Old 10-08-2018, 02:29 PM
The real JP The real JP is offline
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PMI MSA15S is the best I could figure. It is a lube hole at the top which can be threaded and punctured.

I'm still waiting for the M4 fittings to show up before I poke a hole in the guides.
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  #15  
Old 10-08-2018, 03:01 PM
Jim_in_PA Jim_in_PA is offline
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I was just working on this, JP...My Stinger II has the PMI MSA25 bearings and I just had to order M6 zerks. I tried using the M4 version from the side, but the grease doesn't seem to go where it needs to be based on my disassemble of the top of the bearing and I don't want to continue to "poke holes" in other bearings.

So I may have some nice M4 zerks available for someone...will know in a few days.

PDF available on this page: http://accu-techusa.com/product/msa-series/
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  #16  
Old 10-08-2018, 09:44 PM
The real JP The real JP is offline
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Well, I hadn't even known about the holes on the side when I ordered some brass m4 screws.
I plan on replacing the original screws with these longer ones after I drill them out so grease can flow through. I got some 4mm id tubing and some spring clamps for it.

If it all works out I'll post a pic. I plan on doing what Charlie did though.

The screws are not due in until after the 19th so I wait......


Where does the grease go on your linear bearing side hole? It didn't line right up with the existing grease point?
You have a good choice with m6 zerks, you could even try those push fittings like water and air lines use and make your grease points wherever you wanted.
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  #17  
Old 10-09-2018, 10:42 AM
Jim_in_PA Jim_in_PA is offline
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I did the tap and punch through with one of the existing 4mm holes on the side of the top of one of the top bearings on the Z-axis (easily accessible), however, I wasn't happy with what I saw when I shot some grease in through the 4mm zerk and it came out between the cap parts rather than routed to the bearings.

I then disassembled the top of that bearing and couldn't perceive there was any path for the grease to actually get to the bearing. I certainly could be wrong about that, for sure, but rather than take any chances, I'm opting to just put M6 zerks in the existing M6 holes that I shot grease in last week after removing the hex screws. I ordered a couple sets of them from Amazon and should have them tomorrow. It will still be easier than dealing with the hex screws over time and I can live with that. The sets I ordered have mostly straight zerks but do have some 45 and 90 in the packages. If I can actually screw in any of the angled ones, I'll use those; otherwise, I'll just use the straight ones. I can maneuver the gantry and spindle with soft limits turned off to get to them straight on with no issue other than having the kneel down on the floor for the bottom ones.
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Non CNC stuff...

SCM/Minimax - slider/JP/BS
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Stubby - lathe
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Commission work for equestrian tack storage and other custom furniture and cabinetry
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  #18  
Old 10-16-2018, 09:20 PM
Jim_in_PA Jim_in_PA is offline
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JP, just to follow up, I ended up acquiring some M6 zerks and some 5.5mm o-rings and they installed nicely to replace the simple hex screws.

So if anyone needs any M4 zerks...I gotz some available!
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Jim Becker

SR-44 (2018), 1.7kw spindle, Performance Premium, USB, Keypad, T-Slot table (y-axis configuration), WinCNC, VCarve Pro

Non CNC stuff...

SCM/Minimax - slider/JP/BS
Festool "a good collection"
Stubby - lathe
Oneida Cyclone
more...

Retired from full time work in the telecom industry 9/2017
Commission work for equestrian tack storage and other custom furniture and cabinetry
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http://bvww.us
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  #19  
Old 10-17-2018, 07:47 AM
Doug S Doug S is offline
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Morning Jim,

I am in the same boat but do have HIWIN bearings on my Cobra.
I would be interested in acquiring those 4mm zerks from you.
Have been thinking about remote mounting a common rail to grease things but this will be a stop gap.

I can paypal or send you some cash for the parts and shipping.

Please let me know.

Doug S
Central Texas
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  #20  
Old 10-17-2018, 10:03 AM
Jim_in_PA Jim_in_PA is offline
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Doug, email me your PayPal email address and your shipping address to jim@bvww.us . I'll send them out to you ASAP and send you an invoice for the $25 I paid for them. (8 zerks)

'Glad they will be put to use!
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SR-44 (2018), 1.7kw spindle, Performance Premium, USB, Keypad, T-Slot table (y-axis configuration), WinCNC, VCarve Pro

Non CNC stuff...

SCM/Minimax - slider/JP/BS
Festool "a good collection"
Stubby - lathe
Oneida Cyclone
more...

Retired from full time work in the telecom industry 9/2017
Commission work for equestrian tack storage and other custom furniture and cabinetry
Located Bucks County PA
http://bvww.us
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