Brass bushings, are they really that bad.

[laurence]

Right, i have 7mm brass bushings in my ks p90 and was wondering if theres any point changing them out? Thats what the G&G combat machines use and they dont seem to fail. Im thinking of running aroung 20-25 rps, the brass bushings wont melt will they as this is what ive heard.

[No1_sonuk]

Re: Brass bushings, are they really that bad.

The "problem" is that brass can be quite a soft metal, and would wear more quickly than, for example, steel.

[laurence]

Re: Brass bushings, are they really that bad.

But more durable than plastic?

[No1_sonuk]

Re: Brass bushings, are they really that bad.

But more durable than plastic?

More often than not.

[laurence]

Re: Brass bushings, are they really that bad.

Ok cheers.

[hapi]

Re: Brass bushings, are they really that bad.

If you want to run that fast an rps then you should go for full ball bearing type bushes

[laurence]

Re: Brass bushings, are they really that bad.

No, sorry but i just dont trust them for two reasons, i only have a 7mm gb and i dont think i can justify bearings for that size also, if they break, they will be more trouble than they are worth.

[Creedy]

Re: Brass bushings, are they really that bad.

you cant run ball bearing's in a p90 box as one of them isnt round. (bar the CA box iirc)

you can get systema self lube metal bushes. i run them in mine and that is @ 28rps and has been totaly fine

[laurence]

Re: Brass bushings, are they really that bad.

naa, ive got a ks p90, got standard v2 bushings (7mm)

[Creedy]

Re: Brass bushings, are they really that bad.

must just be the TM one then and maybe the acm clone (or any clone of the TM model)

[jaffers]

Re: Brass bushings, are they really that bad.

I had brass bushings in my G&G GR15. They where so bad they didn't even sit nice in the casing. I replaced them with bearing bushings, systema flat gear set, ultimate other upgrade parts and put a fet in, very nice now. I would def change them mate.

[laurence]

Re: Brass bushings, are they really that bad.

The tm is the only one with the oval bushings, and i have no idea why they used an oval shape :P, im probably getting some shs bushings

[No1_sonuk]

Re: Brass bushings, are they really that bad.

The tm is the only one with the oval bushings, and i have no idea why they used an oval shape :P, im probably getting some shs bushings

Only reason I can think of is there might have been the intention to use a different gear ratio. e.g. for different guns, or different main springs.
If that one pair of bushes is put in the other way round, a different size gear can be fitted because the axle hole is at one end, not the middle..