Why are you gluing your bushings in?

[@KronosD7]

I think you should tig weld it just to be sure it never gets loose

[@averyfilms1432]

4 years still going on strong for me

[@rogerborg]

If you shim evenly around the circumference of the bushings then they will be centred, so clearly, the answer is to wrap them in PTFE tape. You won't need much, just use a bit of what's left over from sealing the cylinder head, hop rubber, and packing around the barrel.

[@NegativeAirsoftTech]

Ah, of course!

[@robsorgdrager8477]

Don't forget to get the JB weld to push out enough to grab the gears so they get bonded in place, that way you know they will be shimmed perfectly 😏. Then use 75% of a tub-o-grease I mean dip those gears in the tub like you are dunking cookies in milk😅. Then when assembling make sure to alternate stripping heads and cross threading all the machine screws.

[@steffenmuller2888]

Thanks for the video! There are too many videos were bushings/bearings are glued and I was asking myself why the heck they do it. It just doesn't make sense, they can't go anywhere when the gearbox is closed and your arguments are perfect regarding the potential angle offset of the bearing/bushing.

[@mpoT3CHY]

Love this, thank you, Luke! My method is to use a dab of thick silicone grease to hold them in while working when needed. No glue residue to worry about! 🙏🔥

[@andrew279cz4]

The new E&L essentials line (AKs) have 9mm bushings and have the mentioned metal protrusion.

[@TheRealDealAirsoft]

ive been using double sides velcro to secure the bushings this whole time...

[@michaelomalley9992]

Hahahaha, if they fall out use super glue, the super glue will dissolve with acetone. also, just the the vibrations from running the GB will "knock" the super glue loose.

[@FrozenByFire3]

99.9% of the time the bushings/bearings fall out but have nearly 0 actual side to side play. Rarely anyone uses JB weld, they use retaining compound. That is designed to still be removable, however keeps them in place solidly. Also, you can use Laylax centering pins. You'll know the bushings/bearings are perfectly aligned when the steel shaft in the middle moves 100% freely. In almost all cases, gluing is mandatory, especially at higher J output. Did you know the UK is not the only country on the planet? Here in Canada people want 30rps+ at 1.5J. Even bushings that are held in tight in gearboxes eventually come loose, and then grind away at the gearbox overtime making the hole bigger. Gluing is mandatory for any quality tech work, provided the gluing is done correctly.

[@rogerborg]

You've seen side-to-side play once in a thousand cases? Interesting, Skylar.

[@FrozenByFire3]

@@rogerborg the only time I had actual side to side bushing play was in a BOLT that I recently worked on. Literally every other gun I've worked on in the last 5 years did not have side to side play. In Canada, there's pretty much only g&g, VFC, KRYTAC and a couple other brands. All of them have pretty good bushing hole tolerances. I've had some quite loose, but the side to side play is less than 0.02mm meaningless in these crooked cast gearboxes anyways. I also primarily do high end stuff, and always use high quality components. The CNC bushings I use are a tad oversized by like 0.02-0.03mm so they tend to be a nice fit in otherwise slightly loose gearboxes. If a gearbox shell is too garbage, automatically delete it and install a retro arms if the client wants to go all out on that.

[@NegativeAirsoftTech]

Did hear the bit where I said I didn't give a fuck about other peoples opinions? And tiny FYI, if you've not seen people with badly JB welded bushings in an AEG, get better at noticing bad tech work or get more tech work. Ta!

[@FrozenByFire3]

@@NegativeAirsoftTech here in Canada, I know of maybe 1 tech who glues in their bushings lol. I have indeed seen like 1-2 gearboxes with very poorly glued in bushings, but that was from someone who never did tech work either. Gluing bushings in is good, if done properly. Just like most things.

[@NegativeAirsoftTech]

@@FrozenByFire3 and I see it all the time... I don't recall mentioning other techs though. My channel is for anybody who wants to see it & I'm trying to show people what not to do, that's explained within the video bud. I've not seen ANY pro techs in the UK JB welding bushings, never. But I do see chancers & "reddit experts" who have & that's why I end up with the AEG - cos it am fucked. VFC superglue their bearings in. Terrible idea because their gears are shit & when they break, they can bust the bearings along with it. I'm not trying to advise people who know what they're doing, but I am trying to stop new people from making an expensive mistake. Oh, the UK never had a "legal" power limit for decades and I'm very used to building 5-7j AEG's 😉

[@bumsausage5791]

C Marriott

[@MagnustheJust]

1:05 ... better than a Rick Roll!! ✊😤

[@ShetlandTec]

I prefer glueing them, then I test if the gears turn freele, if not, there's is a problem and I take them out until they sit perfectly with loctite, not a single problem since.

[@parky6031]

Have you ever JB welded bushings into the gearbox before and seen first hand the issue you are describing with the gears not aligning perfectly? In theory it makes sense if you were unlucky when gluing.

[@NegativeAirsoftTech]

I've seen many aegs with jb welded bushings, yes. I've seen thousands of AEGS for fixing too over the years... you?

[@planetcaravan2925]

​@@NegativeAirsoftTechyou have a big mouth sir

[@NegativeAirsoftTech]

@@planetcaravan2925 yup

[@NegativeAirsoftTech]

@@planetcaravan2925 "all the better to taste you with" said the YT guy

[@kevindk1234]

9:00 have the exact same replica, mk18 cyma plat/ emg and fitted a perun v2 hybrid and the sticker gave me so much trouble! I must’ve disassembled and reassembled the lower 5 times to move that freaking sticker a millionth of a millimeter each time, man i feel like a twat for not thinking about using the ics sticker. I got it to work though but every once in a while if i flick the selector to the safe position a little too gently it still shoots semi… i want to put the physical safety lever back in but i can not figure out how the heck that fits together

[@NegativeAirsoftTech]

You can swear here, it's a safe space ;-)

[@darkshock42mlg05]

Honestly, I'd prefer to be able to push out my bearings or bushings so that way I don't mess with the shimming if I ever have to open up the gearbox for any reason unless I'm changing the gears anyways. I have no idea how I'm going to do that with my LCT because One of the bearings likes to get stuck on the axle of the sector gear and I have no idea how to get it off because it would seem that LCT gears are slightly off spec

[@Saponiboy227]

I think the only time I ever superglued a bearing or bushing was when one just kept falling out by itself. Even then it was just a single drop so I could pop it out if it needed to be replaced or swapped into another shell

[@jamescameron6819]

Have done the same. And I would be hard pressed to say it was even a drop. Just a dot with a tooth pick

[@Saponiboy227]

@@jamescameron6819 yeah like just enough to make it stop falling out. And like neg said it breaks free after a while

[@jamescameron6819]

@020594justin yup if it needs to be removed. Hit it with the hairdryer for a minute and just pops right out

[@kyledsmith87]

Surely you can close the case with some silver steel pins in place of the gears and then just use a tiny bit of stud lock and let capillary action do the job

[@gregoryfranks7347]

would it work to use small strip of electric tape on the outsife of the case to hold the bearing/bushing in ?

[@A-G-F-]

When comes to glue and grease, people seem to think "a fuckton" is the only acceptable amount and thats a problem.

[@TheNinjaman97]

I personally use a thicker silicone oil when I do my shimming and wipe off excess with a lightly dabbed alcohol rag once it's all reassembled.

[@rogerborg]

And why would you use silicone on metal-to-metal surfaces?

[@TheNinjaman97]

@rogerborg simply put the high surface tension of thicker rated airsoft oil. Once I'm all done with here like I stated above simple alcohol wipedown and relube with applicable oil to reduce wear and tear on my bearings. Everyone has their ism.

[@mr_sheen_airsoft]

Wrap the barrel and the hop unit with a ptfe tape for good measure 😂

[@MasadaGbTech]

What do you do if you have a gearbox with 8 mm bushing but you have to use low profile bushing but even then they are so loose they fall out? I've heard having loose bushing can mess the gearbox up

[@jhqtech]

I like j caged bearings like ezo over any bushings. Super strong, ridiculously smooth, and provide just enough flex for gears without having to worry about them wearing or spinning in the gb like bushings can.

[@NegativeAirsoftTech]

I do too, but if you get a wonky casing.... exploded bearings.

[@jhqtech]

@@NegativeAirsoftTech Very true nothing in airsoft is perfect. The prommy bushing centering pins are very helpful for checking cheaper cases for warping. The EZOs are incredibly resilient tho I run them in numerous 50rps builds for several years with no failures. Great video!

[@NegativeAirsoftTech]

The newest variation of the EON casing from gate is good...

[@jhqtech]

@@NegativeAirsoftTech lol that must be a joke I dont trust anything from gate.

[@NegativeAirsoftTech]

@@jhqtech I saw MANY that were warped.... but, I've seen the newer version & I can only fault the fact it doesn't fit certain recievers.

[@MercutioUK2006]

Oh, let's get ready to rumble :)

[@JedociderShou]

Ptfe tape everything 👌 nah seriously back when I was a noob (and still a noob and learning today) I don't see a reason to glue them, I mean as if they would fall off lol, even if a gearbox isn't shimmed properly (my aeg out of the effin box) they're not going anywhere. 😂

[@iammrbadguy9706]

I really appreciate how much one can learn from watching negative airsoft. And from what I understand, you spend quite a bit of time working on airsoft toys, so when you have a piece of advice, it will probably be right. Edit: Also, that is a nice DD Airsoft Toy. I wish though, that Cyma produced a replica of the V7 stock and pistol grip, just to complete the package for anyone who wants something like that.

[@NegativeAirsoftTech]

Over 1500 in the last 4 years....

[@iammrbadguy9706]

@@NegativeAirsoftTech I see, an impressive number. Thank you for showing me, that dsg-builds are not the way to go, and how bloody good cymas can be, especially with a little bit of care taken.

[@MiguelRamos-fh2ox]

okay but what force of nature do i use to separate a lct bushing from the gear?

[@NegativeAirsoftTech]

Shit aren't they?

[@robsorgdrager8477]

A brass drift, a hammer, a small portion of the grey matter in your head and the pivots in you arms. Reverse the procedure to install.✌️👍

[@NegativeAirsoftTech]

@@robsorgdrager8477 that's very funny actually. 😁

[@raccoonbender984]

Ares CTAR gearbox had the bushings falling out. I overstacked shims on all the gears to compress the bushings flat. I used some sort of 2 part apoxy bc jb weld will crack.

[@anno6969]

Genuine question, what is better? 8mm bearings or solid bushings? As my preference being a mechanic would be bearings.

[@NegativeAirsoftTech]

I prefer solid, certain bearings are very good

[@mpoT3CHY]

Optimal bearings with J-cage can be around $40 for a set of 6 on the cheap side. Bushings however are around $10 for a basic steel set and last just as long. Really depends on preference and gearbox specifications. A lot of replicas still use 7mm and bearings for those are ALL bad.

[@Sadaygamer2076]

'to prevent bushing/bearing slip and grind away the gearbox hole' they say

[@opairsoft8100]

I love my daily dose of misinformation or maybe not misinformation from negative

[@NegativeAirsoftTech]

Can't argue the facts! People only like the facts they agree with though, that's Internet facts at work!

[@opairsoft8100]

@@NegativeAirsoftTech I mean, engineering and physics say otherwise depending on the scenario

[@NegativeAirsoftTech]

@@opairsoft8100 but in that scenario the things are made welll..... if its made to the shit standard of airsoft, no amount of glue will fix that... can't judge a badly, cheaply made thing against a well made, more expensive thing & thus you can't assume the same fixes will apply ... dem the facts

[@opairsoft8100]

@@NegativeAirsoftTech okay then tell me what wears out faster, casted random metal/7075 Aluminum gearbox shell or rotating steel bushings. I agree that there is a very real chance that bushings/holes can be so over/undersized that there is potential for errors if you glued them in, but the counter point to that argument is that is a relatively rare occurrence (generally happens when loose bushings have rotated over many tens of thousands of rounds and increasing the hole to allow serious movement). Having a loose bushing in that scenario wouldn’t made the situation better and arguably would increase stress due to allowing the axle to have serious play. As a completely random example, I have a 249 shell that has either the spur or sector bottom bushing hole drilled out at a angle thus meaning it has to be shimmed way looser in order for it to not make contact. The original gears saw at minimum 70k rounds through them before the sector axel got deleted due to the bearing blowing out. After replacing said sector/bearing with a bushing, it saw another 35-50k rounds without having a issue related to said misaligned hole (I am assuming we are generally referring to issues of gear teeth meshing/breaking, gear axels, or completely burning motors).

[@julianking4531]

Pva glue is proper good mate

[@motanugras6851]

May I ask why do you always put 3 round burst?

If it's not his gun, it's a client's request.

[@alexisklingler7279]

I think same reason as a real firearms. One not enough, 2 is just a double tap, and 4 is to much

[@coachster]

Love this. Can see several idiots on FB getting all hot and bothered by this video because they saw jbwelding bushings on the Airsoft tech and think he’s god. Keep up the good work Luke!

[@cmarriott3835]

Bum sausage

[@nimmen]

Could've just ended the video at the 1:10 mark. That would definitely upset some people xD

[@steviejc666]

I thought airsofts liked a loose bush 🤔

[@NegativeAirsoftTech]

Airsofters take whats offered

[@hyperslow556gungamer]

638

[@egg750]

Listen to this guy ! He knows what he’s doing

[@planetcaravan2925]

Hi luke

[@egg750]

@@planetcaravan2925 the hell is luke ?