Construction and other equipment - H-3 RH/LH Tapping Blocks

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H-3 RH/LH Tapping Blocks - Truck Rollers

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=70206
Printed Date: 20 Aug 2025 at 10:22pm
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Topic: H-3 RH/LH Tapping Blocks - Truck Rollers

Posted By: orangeman
Subject: H-3 RH/LH Tapping Blocks - Truck Rollers
Date Posted: 13 May 2013 at 5:16am

Guys: I am working through some bad rolls on my H-3 and am looking for ideas to replace the tapping blocks that the caps screws fasten to when putting the rollers on.

Any ideas on were to obtain these.

Any one have these for sale used. I could use four of the tapping blocks.

PM please if you have them for sale. Thank-you...

Replies:

Posted By: warddc
Date Posted: 13 May 2013 at 2:32pm

Are these the little steel blocks that are like blind nuts. I took a few off my H3 that were on the track chassis bolts that fastened to the front I-beam. I think they were 1/2" fine thread.

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1962 H-3 Dozer

Posted By: orangeman
Date Posted: 13 May 2013 at 4:21pm

Warddc: Yes, they are kind of like blind nuts but they are made of steel stock about 6" long and are tapped for fine thread. One side is tapered and butts against the inside of the frame. They serve as the fastner for the fine threaded bolt that holds the roller to the frame.

Posted By: ac-mike
Date Posted: 14 May 2013 at 7:29am

I think I have some left over from the one I am rebuilding. What is wrong with your old ones? The only trouble I had was due to severe rust erosion.

Posted By: orangeman
Date Posted: 14 May 2013 at 3:47pm

ac-mike: Mine are badly oxidized and weak in spots. Could use the welder and weld them but would prefer to find another method to secure the rollers with new stock perhaps. Ideas on this?

Posted By: Dozer
Date Posted: 15 May 2013 at 5:46am

Do you have a local machine shop that can make them?

Posted By: warddc
Date Posted: 15 May 2013 at 7:51am

The ones I have are just like that only shorter. These are about 1-1/2" long. They are the ones that secure the bolts that hold the front axle to the track chassis.

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1962 H-3 Dozer

Posted By: orangeman
Date Posted: 15 May 2013 at 4:39pm

Dozer: yes we have a machine shop locally but hard for me to find anything positive about them. Just that I would need to find someone other than them. Excessive costs and rude and arrogant behavior would be some descriptions that I would use to describe them. Only reason they stay in business is due to govt. piece work. To put it another way I would buy the machine tools to make what I need before I give them 1 cent.

Good suggestion though!