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by Fender
Mon Feb 24, 2020 10:46 pm
Forum: Live Steam
Topic: Most cost efficient way to get steel tire blanks?
Replies: 38
Views: 7893

Re: Most cost efficient way to get steel tire blanks?

In a more recent publication, I see average surface (of the tread) Brinell Hardness values of 321 to 363, depending on class of service.
Mild Steel averages about 120 BHN.
by Fender
Mon Feb 24, 2020 7:03 pm
Forum: Live Steam
Topic: Most cost efficient way to get steel tire blanks?
Replies: 38
Views: 7893

Re: Most cost efficient way to get steel tire blanks?

Chris,
My point was that traction is only desirable for driving wheels. Harder wheels for cars and engine trucks should result in lower rolling resistance.
by Fender
Mon Feb 24, 2020 5:17 pm
Forum: Live Steam
Topic: Most cost efficient way to get steel tire blanks?
Replies: 38
Views: 7893

Re: Most cost efficient way to get steel tire blanks?

I agree with another poster though and think that a hardened wheel would suffer from low traction. Although, in some cases a lower coefficient of friction can be an advantage. I used 4140 pre-hardened for engine truck wheels, where you want a lower amount of friction for going around curves and not...
by Fender
Sun Feb 23, 2020 5:45 pm
Forum: Live Steam
Topic: Most cost efficient way to get steel tire blanks?
Replies: 38
Views: 7893

Re: Most cost efficient way to get steel tire blanks?

About the only way to get 4140 will be to buy disks cut from a bar of the desired diameter. You could cut tires from this, but it would be less work to just make new wheels. DOM tubing is not available in 4140 alloy to my knowledge. True, but hot rolled tubing is available made from 4140. That is a...
by Fender
Sun Feb 23, 2020 5:43 pm
Forum: Live Steam
Topic: Most cost efficient way to get steel tire blanks?
Replies: 38
Views: 7893

Re: Most cost efficient way to get steel tire blanks?

Marty_Knox wrote:
Sun Feb 23, 2020 5:17 pm
Dan, most of the DOM tubing I see is 1026, some is 1028.
Marty, I was going by what Speedy Metals said on their website for DOM tubing (C1020).
by Fender
Sun Feb 23, 2020 4:57 pm
Forum: Live Steam
Topic: Most cost efficient way to get steel tire blanks?
Replies: 38
Views: 7893

Re: Most cost efficient way to get steel tire blanks?

About the only way to get 4140 will be to buy disks cut from a bar of the desired diameter. You could cut tires from this, but it would be less work to just make new wheels. DOM tubing is not available in 4140 alloy to my knowledge. If you go this route, get 4140 pre-hardened, as it will wear better...
by Fender
Sun Feb 23, 2020 6:56 am
Forum: Live Steam
Topic: Spoked wheels in CAD
Replies: 17
Views: 6754

Re: Spoked wheels in CAD

Sharp inside corners on a casting cast can also cause problems with shrinkage as the casting cools. The metal remains liquid longer at the junction points on the casting (such as where the spoke meets the rim) and this can result in an “undercut” or a void in the casting at that point. A large fille...
by Fender
Thu Feb 20, 2020 5:52 pm
Forum: Live Steam
Topic: Oil burning boiler mods
Replies: 29
Views: 11635

Re: Oil burning boiler mods

Brian, For your Allen 4-6-0 I would recommend you put a steam rated ball valve in the dome instead of a smokebox throttle. I recently did a throttle job on Chris's 0-4-0; replaced the original LE or RSC smokebox throttle with a ball valve in an 8" boiler Smokebox. Getting it all in it was a real pa...
by Fender
Thu Feb 20, 2020 5:30 pm
Forum: Live Steam
Topic: Trailer Security
Replies: 22
Views: 5068

Re: Trailer Security

... A local policeman showed up, blue lights on, asked if we needed help and never asked for any identification or what we were doing. As soon as we were loaded, he took off. We could have been stealing the trailer for all he knew. Jim B This happened to a member of our club who burned up a wheel b...
by Fender
Sun Feb 16, 2020 3:50 pm
Forum: Live Steam
Topic: Pacific lead truck question
Replies: 6
Views: 2505

Re: Pacific lead truck question

Here's another drawing (for a 4-4-2) that shows the center bolster and other components.
by Fender
Sun Feb 16, 2020 3:45 pm
Forum: Live Steam
Topic: Pacific lead truck question
Replies: 6
Views: 2505

Re: Pacific lead truck question

Here's a drawing from the 1916 Locomotive Dictionary of the lead truck on a C&O 4-8-2, which may be useful to you.
by Fender
Sun Feb 16, 2020 3:06 pm
Forum: Live Steam
Topic: Pacific lead truck question
Replies: 6
Views: 2505

Re: Pacific lead truck question

The links I’m familiar with have the heart-shaped openings on the upper end of the link and the pivot bearing at the bottom. Also, the links on the left and right are parallel to each other, not canted.