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-   -   25 Series Chain (http://www.chiefdelphi.com/forums/showthread.php?t=78373)

AdamHeard 19-11-2009 14:12

Re: 25 Series Chain
 
Quote:

Originally Posted by waialua359 (Post 883374)
Yeah,
we figured out very soon that a chain tensioner is a must and done properly.
For our West Coast drive chassis, we use #35 bike chain instead. Weight of a 25 chain, but size/strength of a 35.

interesting.... You have a link? What's the weight per foot?

waialua359 19-11-2009 14:17

Re: 25 Series Chain
 
Quote:

Originally Posted by AdamHeard (Post 883375)
interesting.... You have a link? What's the weight per foot?

Let me find the data and get back to you.
We've been using 35 bike chain since 1997 with our human driven Electric Vehicles and carried it over to our FRC robots in 2007 once we went with the WC drive chassis.

ajlapp 19-11-2009 21:29

Re: 25 Series Chain
 
Quote:

We are wondering what teams use for a chain breaker.
We have tried all the standard ones.... and even modified a bicycle one.
None of them work decently... What is everyone else doing to break #25 chain?
The public wants to know!!???
Bar none, this is it.

Dark Soul Breaker

Team RUSH, frc27, uses this device to break and assemble #25 chain. NO MASTER LINKS EVER!

There is a small pin perfectly designed to break the chain. Once you're ready to re-assembly you use the main breaker mandrel to hold the chain, then use a separate screw device to re-insert the formerly removed roller pin.

Eliminating the master link ensures that the chain won't fail because of an improperly installed clip.

:D

Fe_Will 20-11-2009 00:17

Re: 25 Series Chain
 
Quote:

Originally Posted by ajlapp (Post 883436)
Bar none, this is it.

Dark Soul Breaker

Team RUSH, frc27, uses this device to break and assemble #25 chain. NO MASTER LINKS EVER!

There is a small pin perfectly designed to break the chain. Once you're ready to re-assembly you use the main breaker mandrel to hold the chain, then use a separate screw device to re-insert the formerly removed roller pin.

Eliminating the master link ensures that the chain won't fail because of an improperly installed clip.

:D

I agree that this is a great breaker. The only problem is that they are often sold out or back ordered. If you can get one or two, its worth it.

Jon Jack 20-11-2009 01:01

Re: 25 Series Chain
 
Quote:

Originally Posted by ajlapp (Post 883436)
Bar none, this is it.

Dark Soul Breaker

Team RUSH, frc27, uses this device to break and assemble #25 chain. NO MASTER LINKS EVER!

There is a small pin perfectly designed to break the chain. Once you're ready to re-assembly you use the main breaker mandrel to hold the chain, then use a separate screw device to re-insert the formerly removed roller pin.

Eliminating the master link ensures that the chain won't fail because of an improperly installed clip.

:D

This is hands down, the best 25 chain break we've ever used. We've been using these for two years now and would be hard pressed to consider using any other chain break.

They are hard to get, though so if you see they have them in stock, jump on it.

Dad1279 20-11-2009 22:38

Re: 25 Series Chain
 
Quote:

Originally Posted by Bob Steele (Post 883365)
..... What is everyone else doing to break #25 chain?
The public wants to know!!???
......

We use a bench grinder or dremel, and grind off the tips of the pins, then the link pops right out.

Dick Linn 22-11-2009 09:34

Re: 25 Series Chain
 
Ditto on grinding the pins. It can be done very quickly on a bench grinder though it does get a little hot on the fingers if you hurry it.

ajlapp 22-11-2009 19:07

Re: 25 Series Chain
 
No doubt that grinding is a quick way of breaking chain...but; the beauty of the Dark Soul unit mentioned above is that it also re-assembles the chain, eliminating master links.

AdamHeard 22-11-2009 23:29

Re: 25 Series Chain
 
Quote:

Originally Posted by ajlapp (Post 883849)
No doubt that grinding is a quick way of breaking chain...but; the beauty of the Dark Soul unit mentioned above is that it also re-assembles the chain, eliminating master links.

How well does it reassemble? Is it the same strength as stock?

Teched3 23-11-2009 07:49

Re: 25 Series Chain
 
For those of you that want to buy a Dark Soul chain breaker, I did a search and here's a supplier that has them in stock and ON SALE for $22 until Nov 25th.

http://www.davesmotors.com/s.nl/c.885035/n.1/it.A/id.2258/.f

Teched3 23-11-2009 08:11

Re: 25 Series Chain
 
If you use the link to go order the Dark Soul chainbreaker, it tells you "it is no longer available". Use the search box in the right upper corner and type in gg220, and it will bring up the sale offer. Sorry for the inconvenience - but I did just order one.:)

ajlapp 23-11-2009 08:25

Re: 25 Series Chain
 
Quote:

How well does it reassemble? Is it the same strength as stock?
It goes back together great. We have never performed an actual strength test, but we have used #25 chain this way for at least 5 seasons of FIRST without failure.

Alan Anderson 23-11-2009 08:26

Re: 25 Series Chain
 
Quote:

Originally Posted by Teched3 (Post 883898)
For those of you that want to buy a Dark Soul chain breaker, I did a search and here's a supplier that has them in stock and ON SALE for $22 until Nov 25th.

http://www.davesmotors.com/s.nl/c.885035/n.1/it.A/id.2258/.f

I found that yesterday and tried to submit an order. It wouldn't let me past the "choose payment" screen.

Teched3 23-11-2009 10:32

Re: 25 Series Chain
 
Alan,
Did you use the gg220 code in the search box? I got a confirmation of my order back this morning. Youmight want to try again.:)

Brandon Holley 23-11-2009 13:32

Re: 25 Series Chain
 
Quote:

Originally Posted by Teched3 (Post 883919)
Alan,
Did you use the gg220 code in the search box? I got a confirmation of my order back this morning. Youmight want to try again.:)

Ditto on being able to order one.

Brando


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