Hd11 track 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=169376
Printed Date: 10 May 2024 at 11:59pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Hd11 track rollers
Posted By: 7060
Subject: Hd11 track rollers
Date Posted: 23 Mar 2020 at 10:56am
| Does anyone have any information on converting to D5B rollers? Is the roller close enough to run on HD11E chains? I’ve read before about having to redrill the track frame for cat rollers or that they used to offer rollers without the holes drilled in them maybe? Can’t find the post, but does anyone have any information or dimensions? |
Replies:
Posted By: DMiller
Date Posted: 23 Mar 2020 at 12:22pm
| Will need to take the trucks off, flip them redrill and make new bolting blocks then widen the truck flanges at the rollers. Bolt pattern different as well width of bolting flanges is wider. Is a necessity of go to 6.906 Cat rails. |
Posted By: 7060
Date Posted: 23 Mar 2020 at 3:48pm
| I have a company that will make new bottom rollers/ modify cat D5B rollers to match up to my bolt holes if I can figure out the differences and if they will work in place. |
Posted By: DMiller
Date Posted: 23 Mar 2020 at 4:26pm
| The rollers are not the problem it is the end stubs of the assembly, easier to adjust the trucks than ruin new rollers trying to make fit what they do not. The ends of the assembly are not the same as Allis, not dimensionally nor bolt pattern and not enough meat to eat them up in a futile attempt to do so. TREVMAN on here explained this a long time ago, he has not been on since Aug 2018 so not sure will find any help there. Was faster cleaner and simpler to remove trucks invert and mod them. CAT uses duocone seal system, any damage to the roller shaft and that fails then you just have scrap metal and expensive at that. Once trucks modified then can buy Off the Shelf products to replace as Allis parts NOT coming back to US Anytime soon. |
Posted By: DMiller
Date Posted: 23 Mar 2020 at 4:34pm
| On the D5 Series rollers the end bolting caps are Integral to the assembly and pressed on unlike the Allis that are split collar bolt blocks, the cat rollers are slightly Larger Diameter, and you have to Specify NOT dual Flange Roller as those will not work on your existing rails, Single Flange outboard only. The reason you HAVE to modify the trucks is the entire Roller assembly is WIDER as well. |
Posted By: Lazyts
Date Posted: 23 Mar 2020 at 6:17pm
| Cat D5/D5B/D5H, JD 750/750B/700H rollers should work on later HD11 (serial number 10000 and up. I will try to get some specs on the bolt pattern. HD7G uses same roller shell as early HD11, but truck frames are narrower, different shaft and end blocks were used on them. |
Posted By: Lazyts
Date Posted: 23 Mar 2020 at 6:43pm
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Posted By: Lazyts
Date Posted: 23 Mar 2020 at 6:45pm
| I think you will be forced to drill on the track frame. The "hole-less" end collars probably wouldn't work because the Allis holes are so close together? |
Posted By: 7060
Date Posted: 23 Mar 2020 at 7:08pm
| Thank you very much, those are the specs I was looking for. I deal with manufacturing in China, and have a undercarriage manufacturer that will build custom rollers to my specs. It would be easier if a current production roller casting such as the D5B could be modified. If the center was trimmed down a little more where they weld together it may work. My other option is having the shaft made with the blocks already spaced right and use D5B track rails. My goal is to bring undercarriage parts back to the US for these machines. |
Posted By: DMiller
Date Posted: 24 Mar 2020 at 3:54am
| If going to do that they can copy the Allis style rollers and end blocks, dimensionally. All the aftermarket makers have copied the Allis pattern where none are copyrighted anymore. The biggest issue is getting 7.484(HD16), 7.0(HD7 and 11) and 6.5(HD5&6) pitch rails that fit predominantly Allis ONLY. |
Posted By: gemdozer
Date Posted: 24 Mar 2020 at 7:58am
| If I was not so far from you about bottom roller HD11 am having 2 complet track frame with bottom rollers in very good condition and should have maybe 15 rollers on racking in good conditon but am in CANADA MONTREAL AREA and with the COVID 19 VIRUS am stay in house. |
Posted By: 7060
Date Posted: 24 Mar 2020 at 12:27pm
| I was thinking if I could get them to build a roller that would work for both the allis 7” pitch as well as the cat chain then it would be better. Casting molds get expensive, but making slight changes to existing molds such as the D5B roller mold would be easier and cheaper. Changing to cat chain is pretty easy if and when needed, but good allis rollers are becoming non existent it seems. I thought if a ready to bolt on roller was availiable it would make the transition a lot easier. I am working on getting a pattern for a laser cut weld on ring to bolt on cat segments since I don’t believe cat sells them anymore. |
Posted By: DMiller
Date Posted: 24 Mar 2020 at 6:48pm
| Aussies seem to still be able to find/get Aftermarket Allis UC components, just not delivered here. |