linearmotionbearings2008 Ballscrew/Nut Overview

Рет қаралды 271,503

11 жыл бұрын

Quick video of unwrapping and nut dis-assembly of two RM1605 (16mm diameter, 5mm pitch) and one RM2005 (20mm diameter, 5mm pitch) ball screws with ball nuts for a G0704 CNC conversion.
Shipping took 10 days from me sending the payment and arrived via FedEx. Packaging seems adequate as I had no damage and the screws are straight. I had them cut to size and ends machined per drawings I sent Chai and they machined them accurately - the threads are good and the ends fit into my bearings smoothly and without play.
I had the top of one nut ground for clearance and that was done well - I had seen a photo on cnczone where it looked like they used a handheld grinder so its good to see that's done more professionally now.
All of the nuts show signs of grit - clearly visible in the video on the wipers and the ball screw returns. One of the nuts had a slight rattle, which turned out to be from it missing 1 ball (should be 17 in each of the three tracks on the 16mm and 20 on the 20mm screws). I sent an email and am being sent extra free of charge.
Update - Received enough balls to repack all 3 screws. I have installed them in my G0704 mill now and they work excellently.
eBay store from where I bought them -
www.ebay.com/usr/linearmotionb...

Пікірлер: 67

@Docdaugh 11 жыл бұрын

Ah-Ha! Loved your video on making the camera boom! Very methodical and well though out!

@avivisharp6039 7 жыл бұрын

Thank you! Great video!

@naboulsikhalid7763 9 жыл бұрын

I got it. thank you very much

@StipsGifts 9 жыл бұрын

Hi I have the same set, just wondering what oil or grease do you recommend to lucubrate them? Cheers!

@n1bpd 10 жыл бұрын

You can machine parts in Metric or SAE(Inch) regardless of the ballscrews. During the initial setup of Mach 3 you enter the ball screws turns per inch (convert it from threads per millimeter), and then select what units you want it to use, once that's done you can select between inch and mm and Mach3 will do the conversion. I generally machine stuff using SAE measurements, but if I get a Metric part I just switch from inch to metric in Mach3.

@fefernan87 10 жыл бұрын

Thank you so much!!!!!

@n1bpd 11 жыл бұрын

If your ordering the screws to machine yourself they are 778.5mm and 340.4mm 16mm Screws and a 533.4mm 20mm screw. The Machining specifications are in a PDF that Billy sends you.

@eddiegoodridge9765 9 жыл бұрын

I have the same kit as you with the same ballscrews. Curious what you have for setting for the X, Y and Z axis in motor tuning for steps per, velocity, and acc..step and dir pulse as well. Any help would be great. thanks

@FPChris 5 жыл бұрын

The bearing housing at the end of the video. How do you reassemble it?

@IndependantMind168 8 жыл бұрын

I have a few 1610s that I'm just about to incorporate into a build. I don't like the fact that of all of the threads they put on the end only like three or four threads are under the lock nut. And what's up with that lock nut? as soon as you tighten that thing up the few threads you had available are damaged! Any solutions or comments are appreciated. I think a brass locking nut would be ideal. I just can't find any that'll fit.

@pedropavoarce 10 жыл бұрын

hello. 've got it right. thank you very much for your answer. I'm looking forward to do the same. a greeting.

@marciokoko1 6 жыл бұрын

How to you manage to get the clip on the end block of the ballscrew?

@Trajiq187 10 жыл бұрын

Awesome! Thanks for the lightning fast reply. Can you tell me the flange size on the nuts? I am wondering if it will fit under my 10x22 lathe's cross slide :/

@ccarrazana 10 жыл бұрын

Thanks so much for Sharing you are the best. I would love to see how to ensemble it again, can you show us.

@n1bpd 10 жыл бұрын

I dont plan on taking mine apart for a long time. This video by someone else does a good job of explaining it - Repacking Linearmotionbearings Ballscrews

@n1bpd 11 жыл бұрын

I thought about making a repacking video, but there's one on here already. It's got a narrative so its much more helpful than anything I could make. Did you contact them about the missing balls?

@n1bpd 11 жыл бұрын

I'm using them on a Milling Machine I'm changing to Computer Control. They convert the rotary motion of motors into linear motion with less friction and play than the screws my Mill came with.

@Mike..M 6 жыл бұрын

At least your machined ends look nice. Mine look like they were roughed out but no finish pass plus the ends have the little metal needles from the cutter being too low.

@wilfredoyusti9545 10 жыл бұрын

hello friend, I'm starting on building a CNC wood carving basically, want the highest possible precision with. You could provide me information which ball spline is the most suitable. Thanks in advance for your valuable help

@tkarlmann 9 жыл бұрын

You know that about the late 1920's or so they invented the "talkies" -- movies you canactually TALK and it will be perfectly synchronized to your lips! Try it sometime.

@undercrackers56 6 жыл бұрын

It really is so damned annoying that people post instructional videos with "sound" but don't explain what the pluck they are doing.

@hussainbhavnagarwala2596 9 жыл бұрын

how do you put it back together ? , could you please make a video on that. Thank you.

@n1bpd 9 жыл бұрын

kzfaq.info/get/bejne/fb6Up5h-ncDJn3k.html

@n1bpd 10 жыл бұрын

On the 16mm Ballscrews the flange is 48x40mm, the 20mm its 58x44mm.

@n1bpd 10 жыл бұрын

Hi, I do not have a video showing the reassembly - there was already one better than I could make. Search KZfaq for "Repacking Linearmotionbearings Ballscrews". The 1605 nuts I received had a total of 51 balls (17 for each "circuit"/plastic ball return on the nut). If you contact him he will quickly send more balls. I was missing one on an RM2005 nut (Correct number is 63), received many extra within a week.

@fefernan87 10 жыл бұрын

Do you have a video on reassembling and reloading of the spheres back to the nut? I've got one 1605 set from this seller and the long screw felt strange and travel wasn't smooth. I disassembled it and found 26 spheres: is that quantity right? Thanks, excellent video! Best, Fernando

@panchalnikunj3857 8 жыл бұрын

what is diameter,what is pitch of that screw.do you have any information about it..then let me show plz.

@Yuuki1942 7 жыл бұрын

did anyone get the linear bearing hgh20 from the user. I want.a set but I dont know if the bearing are original.

@pedropavoarce 10 жыл бұрын

que velocidad consiguió tu maquina al final con pich 5 ?

@EUnit111986 11 жыл бұрын

Tjanks for the video. I am in the middle of designing a cnc myself from the ground up. One hurdle is the ballscrews. Do you know if you can get the screws without end machining at a custom length? and also could you please tell me where to find the seller? thanks in advance.

@n1bpd 10 жыл бұрын

I'm not sure how accurate google translate was, but if your asking how fast my Mill is with the 5mm pitch ball screws... I have mine set to 120 IPM (50mm/s) rapids, which is on the conservative side so that I don't lose any steps.

@Trajiq187 10 жыл бұрын

hi again, i was wondering if i buy metric ballscrews if i will be able to use my lathe/mach3 in inch? I know its a stupid question lol but im really new to cnc conversion! I recieved my lathe last week and all my electronics is done! I saw thos ballscrew and nuts on ebay but they are only available in metric. Other option is mcmaster-carr. Any suggestion would be appreciated!

@santosrj1 8 жыл бұрын

boa noite, aonde posso comprar essas peças ???

@brianchen3093 9 жыл бұрын

Would you please provide the length of the ball screw you ordered for both RM1605 and RM2005? Thanks

@pedropavoarce 10 жыл бұрын

podrías indicar algún consejo para hacer el pedido correctamente? gracias. google translete: hello. I've been looking at that store to buy and I have doubts of the measures. could indicate some hints for making the order correctly? Thank you.

@tugaminhoto4969 8 жыл бұрын

Hi Sr. Thanks for share You experience . Is there any advantage in use a 2008 (8mm pitch) instead a 2005 (5mm pitch)?

@shodanxx 8 жыл бұрын

+Eduardo Braga You get more linear motion per rotation with the 8mm pitch. You torque to force ratio is equally change, just like changing the gear in a gearbox. If you put 100 ounces-inch of torque on a 5mm pitch ballscrew, you will get 199 pounds of force in the axial direction of the ball screw. If you have a 200 step servo directly driving this ball screw, each step will be of 0.001". Instead if you use a 8mm pitch ballscrew, you will get 124 pounds of force and 0.0015" per step. Wear characteristic are probably different but I'm not sure if the 8mm or the 5mm will wear faster under the same load.

@tugaminhoto4969 8 жыл бұрын

Thanks Sir.

@n1bpd 11 жыл бұрын

The sellers username is "linearmotionbearings2008" on eBay, if you google his username the first result is his eBay item page. I specified how long I wanted them and how I wanted the ends finished so you just have to say what lengths you want of which ballscrew and say you dont want any end machining. I'd recommend sending him a message through eBay even if you find an auction with similar lengths as it ended up being a lot cheaper that way for me.

@Munky332 7 жыл бұрын

I'm looking at getting ballscrews/nuts for my X2 mill, I heard linearmotionbearings2008 has good ones, but they asked for dimensions/drawings and I don't have any. do you know where I could get the drawings for it? its the HF version, #44991

@hosseinhayati9820 9 жыл бұрын

Thank's for sharing. Can you please post information about thes ballscrews, where did you order it from and price? (Link) Regards, HKH

@n1bpd 9 жыл бұрын

The link to buy them is in the description. I paid $174 for one 20mm and two 16mm machined screws with nuts, If he doesn't have what you need on his eBay site send him a message and he'll send a quote.

@hosseinhayati9820 9 жыл бұрын

Thank you :)

@MachinistOne 11 жыл бұрын

what length of ballscrews did you use

@naboulsikhalid7763 9 жыл бұрын

hi, I have a project hanging out for a periode of time because i couldn t find a ballscrew-nut mechanis. plz i need the sddress from where you get them. many thanks.

@n1bpd 9 жыл бұрын

There's a link at the bottom of the video description

@Walkeraid 9 жыл бұрын

Have a look at www.cobaltlinear.com

@Docdaugh 11 жыл бұрын

I'm not familiar with what these are used for?

@aasspirin 10 жыл бұрын

I have a problem. Nut ball screw does not rotate. Nut does not rotate if apply force. What advise. Thank you.

@n1bpd 10 жыл бұрын

I'm no expert.... but here goes Is there any movement at all? Did you just get it and it was like that or have you tried repacking? If you repacked it with balls yourself did you use balls that came from the same place as the ball screw or ones you bought elsewhere after measuring yourself? If it's brand new, contact the seller Is it the same style as the ones in my video or does it have an external ball return (a tube that runs along the outside)? If its an external ball return then remove the return and you should be able to get the balls out through that and then the nut off the screw to determine the problem. Otherwise get a compressor and blow air through the nut from all directions incase there's a bit of grit or debris jammed in there and then pour some lubricant into the nut and let it sit for a while. Then gently try to turn it.

@Grilloale93 10 жыл бұрын

Good evening sir, what is the code of the ballnut? Because i nedd for a 20 and 16 trapezoidal bar. thanks

@n1bpd 10 жыл бұрын

The description has all the information I have on these, and contact info for the seller who should be able to provide any additional info.

@Grilloale93 10 жыл бұрын

n1bpd Thanks. I wrote him a mail. Do you know the difference between RM2005 and SFU2005? Thanks

@n1bpd 10 жыл бұрын

I don't have any hints, I just emailed him drawings of what I wanted and that's what I got. If I had of received the wrong items I would have contacted him for replacements or a refund.

@giovannischillaci8445 9 жыл бұрын

hi, where did you bought? i need same set :)

@n1bpd 9 жыл бұрын

There's a link in the description (you might have to click "show more"). It's right at the bottom.

@giovannischillaci8445 9 жыл бұрын

n1bpd tnx a lot, sorry for delay :)

@aasspirin 10 жыл бұрын

the total number of steel balls in the ball screw nut rm2005? thank you.

@n1bpd 10 жыл бұрын

I have a total of 60 in the RM2005, 20 in each track.

@imzardoz 11 жыл бұрын

Try Mcmaster Carr

@azademambocus 7 жыл бұрын

Hi . i want to build a 3 axis cnc 1.5 x 3 meter .Can you please tell me what size of ballscrew i need ?

@user-bw4rr4kd9n 6 жыл бұрын

Can someone tell me how many balls the nut has?I think i have lost some :S

@n1bpd 6 жыл бұрын

17 in each of the three tracks on the 16mm and 20 on the 20mm screws

@user-bw4rr4kd9n 6 жыл бұрын

Thank you m8.

@cncshopmill 11 жыл бұрын

Nice videos man keep up the good work. I'm converting my g0704 to cnc and am using stock screws for now but this is the way i will go eventually. You should check out my channel. Best of luck Matt