Kevlar Transmission Bands

Discuss all things Model T related.
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules

Topic author
dunoon
Posts: 131
Joined: Sun Jan 06, 2019 9:47 pm
First Name: Richard
Last Name: Davis
* REQUIRED* Type and Year of Model Ts owned: 1926 coupe
Location: Lexington, Va

Kevlar Transmission Bands

Post by dunoon » Sat Dec 18, 2021 1:00 pm

I'm looking to replacing my transmission bands on my 26 coupe. I 'm wanting to use kevlar. Does anyone know a vendor that sell kevlar and will install them on my bands? Thanks

User avatar

Steve Jelf
Posts: 7237
Joined: Fri Jan 04, 2019 9:37 pm
First Name: Steve
Last Name: Jelf
* REQUIRED* Type and Year of Model Ts owned: 1923 touring and a few projects
Location: Parkerfield, Kansas
Board Member Since: 2007
Contact:

Re: Kevlar Transmission Bands

Post by Steve Jelf » Sat Dec 18, 2021 1:29 pm

All the parts dealers sell Kevlar linings from one or another of the three companies that make them, or you can buy directly from the makers. They advertise in the club magazines. I don't now if any of the dealers do installation, but you can phone them and ask.

That brings up another question. Has anybody compared the three current makes and found differences causing them to prefer one over the others?
The inevitable often happens.
1915 Runabout
1923 Touring


OldFord
Posts: 122
Joined: Sat Feb 09, 2019 7:17 pm
First Name: Frank
Last Name: Iaccino
Location: Hudson, NY

Re: Kevlar Transmission Bands

Post by OldFord » Sun Dec 19, 2021 8:09 am

Sent you an email...


DickC
Posts: 270
Joined: Mon Jan 07, 2019 7:51 am
First Name: Dick
Last Name: Cruickshank
* REQUIRED* Type and Year of Model Ts owned: 1912 Depot Hack, 1916 Touring
Location: Angier NC

Re: Kevlar Transmission Bands

Post by DickC » Sun Dec 19, 2021 8:33 am

Kevlar is great but have you considered Wood? I have been running wood linings in my T's for about ten years. Our club tours three times a year, Spring and fall usually 160 miles each and summer is about 450 miles, and then I don't know how many miles I drive in search of ice cream and other running around. I would estimate about 2500-3000 miles a year. I usually adjust the wood linings once after installation and they are good to go. Dick C.


Steve Hughes
Posts: 157
Joined: Fri Jan 04, 2019 12:09 am
First Name: Steve
Last Name: Hughes
* REQUIRED* Type and Year of Model Ts owned: 1926 Touring 1921 Centerdoor
Location: Raymond, NE
MTFCA Life Member: YES

Re: Kevlar Transmission Bands

Post by Steve Hughes » Mon Dec 20, 2021 2:24 pm

Frank: Send that email to me too. I am also interested in how the three manufacturers products compare.


speedytinc
Posts: 4725
Joined: Fri Feb 12, 2021 12:24 pm
First Name: john
Last Name: karvaly
* REQUIRED* Type and Year of Model Ts owned: 14/15 wide track roadster. 23 touring, 27 roadster pickup, 20ish rajo touring
Location: orange, ca
Board Member Since: 2020

Re: Kevlar Transmission Bands

Post by speedytinc » Mon Dec 20, 2021 2:36 pm

Steve Hughes wrote:
Mon Dec 20, 2021 2:24 pm
Frank: Send that email to me too. I am also interested in how the three manufacturers products compare.
Same here Frank. If you have some input to kevlar quality available.

I have always used Steve K's kevlar, but I will need a new supply soon.
I recall, a ways back, there was kevlar with a backing that didnt work out well.


NU2theT
Posts: 214
Joined: Fri Feb 07, 2020 2:26 pm
First Name: Scott
Last Name: Wendt
* REQUIRED* Type and Year of Model Ts owned: 1926 Fordor
Location: Portland Maine

Re: Kevlar Transmission Bands

Post by NU2theT » Mon Dec 20, 2021 7:00 pm

Richard, I sent my bands out to Langs and they installed the new Kevlar material for a nominal bench fee.

Go with the Kevlar linings, once you break them in you will have many happy miles under your feet. Good luck and let us know how you make out sir.


OldFord
Posts: 122
Joined: Sat Feb 09, 2019 7:17 pm
First Name: Frank
Last Name: Iaccino
Location: Hudson, NY

Re: Kevlar Transmission Bands

Post by OldFord » Mon Dec 20, 2021 7:25 pm

The email I sent merely stated that installation on his steel bands was available at $10 per band. As far as comparing material, I believe Nev-R-Wear to be a superior product to that which is imported from England. I had that product forced on me from a previous supplier and rejected it. My Nev-R-Wear linings are made in the USA and have a 100% money back guarantee. If for ANY reason the end user is dissatisfied, send them back. The point that should be mentioned is that the ends of our bands are NOT sealed. Engineers at Dupont warned us over 25 years ago that the only product that would not cause deterioration in the Kevlar fibers was an epoxy that would harden and possibly cause damage to the steel drums. If the end user chooses to seal the ends of the bands, that is their business, but I do not want to accept the liability if something should happen to your transmission.

Frank

User avatar

DanTreace
Posts: 3813
Joined: Sun Jan 06, 2019 10:56 am
First Name: Dan
Last Name: Treace
* REQUIRED* Type and Year of Model Ts owned: ‘12 open express,'23 cutoff, '27 touring
Location: North Central FL
Board Member Since: 2000
Contact:

Re: Kevlar Transmission Bands

Post by DanTreace » Tue Dec 21, 2021 4:10 pm

That brings up another question. Has anybody compared the three current makes and found differences causing them to prefer one over the others?
The latest NevRWear is what used last time, and will use again, but to be honest, have yet to replace any Kevlar linings due to wear. Oh, while maybe others don't, but I coat the very tip ends of the NevRWear with a dab of gel-type crazy glue, to prevent fluffing, had that happen before and like to seal ends of the lining, they overhang the lugs anyway, harmless to the drums, its just the same material used for skin glue!

Will be pulling bands from my '27 in the spring, and do a check on them, will be able to approx. the miles and time from install, that may give me an insight.

As for comparison, have used the made in England and the USA, and prefer the USA type. The weave is a bit finer, and lining is thinner, and they flex better on install, seem to be flexy like cotton.
The England weave is different, thicker linings, and have a compressed weave look, and because of that are quite stiff in comparison. Perhaps the compressed weave is better for wear? Perhaps the flex weave is better for oil saturation? Can't comment, just visual observations.





Linings NevRwear WearEver.jpg
The best way is always the simplest. The attics of the world are cluttered up with complicated failures. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford


Allan
Posts: 6609
Joined: Sun Jan 06, 2019 7:21 pm
First Name: Allan
Last Name: Bennett
* REQUIRED* Type and Year of Model Ts owned: 1912 van, 1917 shooting brake, 1929 roadster buckboard, 1924 tourer, 1925 barn find buckboard, 1925 D &F wide body roadster, 1927LHD Tudor sedan.
Location: Gawler, Australia

Re: Kevlar Transmission Bands

Post by Allan » Tue Dec 21, 2021 5:03 pm

Mention was made of previous Kevlar bands having a backing. Custom Friction Company supplied these back in the 1990's. The Kevlar component was a relatively thin layer of macerated fibre like ordinary brake linings, bonded to a fabric backing to make them up to the required thickness for T bands. They worked really well for me, but came with difficulties for fitting the linings to the bands. The rivet head was on the inside, and the lining had to be countersunk to take the rivet head. I still have the specially sharpened drill bit I used to do this. If you went too deep on this operation, you snagged the backing, and that rivet did not do much holding.
Later editions had a different synthetic backing fibre and this broke down in the heat of the trans oil, leading to the eventual demise of the product. The woven Kevlar bands to which we now have access eliminated the fitting problem, and the fitting operation is just like that to which we have always been used.

Allan from down under.


speedytinc
Posts: 4725
Joined: Fri Feb 12, 2021 12:24 pm
First Name: john
Last Name: karvaly
* REQUIRED* Type and Year of Model Ts owned: 14/15 wide track roadster. 23 touring, 27 roadster pickup, 20ish rajo touring
Location: orange, ca
Board Member Since: 2020

Re: Kevlar Transmission Bands

Post by speedytinc » Tue Dec 21, 2021 5:24 pm

Thats what I remembered, the breaking down of the backing.

Let me add, the normal scandia lining installation method can cause serious problems using kevlar. The loop created MUST be COMPLETELY down flat against the steel band.
A small bump(hi spot), will create a constant friction & can be a reason you cant properly adjust a band.

Post Reply Previous topicNext topic