Weaver 2-Rail Bettendorf trucks.

I have used a bunch of the Weaver 2-rail Delrin (plastic) trucks.   I have found that the wheelsets are interchangable with Athearn plastic wheelsets and pretty much indistinguishable.   I think the tread is .172 inches which has been the standard in O 2 rail for many years.   In recent history NWSL and some others have come out with .145 and .125 tread wheelsets.   I have used the .145 and have not had many problems with them.   I avoid the .125 treads.    They are not very forgiving of trackwork.

The weaver plastic trucks are equalized as opposed to sprung like the Athearn, but the affect is the same.    They do adjust to bumps in the track quite well once in use as do Athearn properly maintained.    Equalized trucks are much better for operation than the rigid trucks typically found on 3 rail equipment.   It seems even if the mfg makes sprung trucks, the springs are so stiff that the truck is basically rigid.

I do have some of the WEaver cars with diecast trucks that are imported too.  I think these have delin bearing inserts.  

Thanks for the input. I failed to mention, above, that these "new to me" trucks are indeed metal, the box states "Die Cast Sprung Self Equalizing", but I wonder if they actually are "Die Cast". They sure look really nice for "Die Cast", to me anyway.

I had a couple of pairs of the die cast. They're sprung and equalized (no lock bar tying the side frames together). For the plastic equalized (pivot bars) trucks, I've been using Intermountain 33" single-insulated wheelsets I've been picking up off eBay. I can't remember if they're code .172 or .145, but they work nicely on the AGHR layout.

The Weaver die-cast trucks have been around for a long time. They are indeed spring and equalized through the bolster/sideframe interface. I've used them for years, beginning when converting Weaver cars to 2 rail. The .172 wheels are wider than what I'm used to using these days, but the cars I have run through turnouts fine.

All in all they are a good truck in their price range.

I love the Weaver die cast sprung trucks. The wheels and sideframes are some of the best looking there are, second only ( IMHO ) to the MTH scale Bettendorf trucks. Here is a little sample of some different choices we have. MTH 2 rail Die Cast, Weaver Die Cast, and Weaver plastic trucks with IM wheels. Did not feel like finding a Sprung Athearn set since it looks like the Weaver anyhow, and I am tired from shoveling out of 18 inches of snow from last night...

Weaver has been getting its trucks through MTH for a few years, as they lost their supplier. This is true for 3 rail, but I'm not sure about 2 rail.

According to Joe Hayter, they don't use the plastic trucks anymore, and haven't for quite a while. 

Don

I have been wondering the same thing. I've been in 2 rail for a little over 10 years now. I started out buying Weaver cars either 2 rail or converting the 3 rail cars. I only use the metal framed trucks as I didn't care for the ones with plastic wheels. I did not know that IM wheels would fit the Weaver plastic truck. All of the trucks on the cars I acquired were exactly the same. For an example here is a Burlington hopper:

Recently, I think it was last summer I saw a Weaver Raritan River woodside gondola at my LHS and it was 2 rail. I know this is a fantasy piece but I collect Raritan River so I bought it. One of the first things I noticed was the trucks were different. The factory wheel sets had a totally different shape and the rest of the trucks was definitely a darker black. I can't decide which truck I like better but I do like the wheels in the new truck better than the older version. This truck is exactly the same as the one posted by Maine Trains in the picture entitled "Weaver Die Cast". Here is a picture of the gondola:

When looking at the trucks by eye it appears the Tread Width is different and wider on the newer truck. Unfortunately, I don't have the proper tool to measure the Tread Width so I measured the Wheel Width and I got 0.177" for the older truck and 0.175" for the new truck. I also measured the Flange Width and I got 0.057" for the older truck and 0.049" for newer truck. NMRA recommends 0.039". The slightly smaller flange on the new truck will give a slightly larger Tread Width. HW, I don't know if this small amount is enough to be the reason why you have seen better performance with the new truck but IMHO it certainly is possible. Or maybe it is a combination of the extra Tread Width and the shape of the flange?

Bear in mind my micrometer is not an expensive model so these numbers could be off by a few thousandths of an inch but the proportions would be correct.