hd 11b sprocket segments

Never seen an early HD11 with segments, but guessing they would have been the 7G-B segments? 7G and G-B used same rail as early HD11. Maybe early D5 segments would be close? I know they almost fit the later 11s, its just that the sprocket disc on the 11-B is slightly larger than D5.

if its still allis spec track with 7g segment sprockets you can get new sprocket ring from Henderson Mfg. in Texas

Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15

I had considered getting 7G-B segmented sprockets for my 7G and trying to adapt CAT segments but that could have been severely expensive. Not any other machine uses the Allis style mounting, would have to make an adaptor ring to install on the Allis hub and not in any way affordable. Would still have to replace the rail rollers too top and bottom and align for Cat rails.

Edited by DMiller - 14 Nov 2017 at 9:43am

That is correct for the rails. I did a little research nd could not come up with the old kit anywhere.

With a fairly worn Allis 7.0 sprocket can handle the 6.91 Cat rails as the bushing IS smaller and will allow some slop, Rollers on the other hand will not work so well.

Lee....the picture is helpful...thanks...looks to me like late model 11B series or E 10000 SER. # and up undercarriage...looking at the carrier rollers and sprocket indicates that...would like to see a picture of the pad bolt pattern..would also help...maybe I can post a picture tomorrow to explain that. Should be able to find those segments out there used somewhere....looks like the rails are wearing down too. If so you shouldn't have to start worrying about trying to convert anything unnecessarily.

Been upgraded at both ends, late model Idlers and sprockets.

Kinda looks like a 7gb sprocket to me

It looks like an early HD11 with a later undercarriage. My measurements indicate that the later rollers and idlers would fit the old swingframe..the newer sprocket would fit the old shaft..so it should not be a problem to have all that stuff on there. Defiantly not 7G stuff. I believe the 7G sprockets would be a smaller diameter and yes would only apply to the earlier 9/11 rails.

So I am assuming your pad bolts look like this....with one set being a little wider than the other

photo PB150054_zpsd27snjq1.jpg

That would also indicate that these are the later model rails that would go with that undercarriage.
The earlier rails...the one that came with that tractor originally..would look like this...not being one set wider.
photo PB150055_zpsgk57tofu.jpg

So that being said....can't quite tell from your picture....guessing it should be the later rails too. Good rails are becoming harder to find...but there still out there...as are sprocket segments. The Henderson people may have a weld on sprocket rim for that size too. The 11EP and Es used weld ons before AC went to segments. Would be a crime to cut of the segment holes...but if you couldn't find segments...would be better than trying to convert to Cat.

The FA10 should accept Cat rails fairly easily.

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leeben85 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 13 Nov 2017 Location: upstate ny Points: 4	Post Options Post Reply Quote leeben85 Report Post Thanks(0) Quote Reply Topic: hd 11b sprocket segments Posted: 13 Nov 2017 at 8:50pm
	just brought home a hd11b its a early type hd11b not the fiat allis style it has segmented sprockets and i cant seem to find anyone who has them they are marked berco ac1916a the local berco dealer said nla so heres my question has anyone made any available segments fit the original sprocket i am not afraid of machining as i have a well equipped shop hopefully someone has been down this road before

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Lazyts Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 05 Feb 2012 Location: Manitoba Points: 627	Post Options Post Reply Quote Lazyts Report Post Thanks(0) Quote Reply Posted: 13 Nov 2017 at 10:43pm
	Never seen an early HD11 with segments, but guessing they would have been the 7G-B segments? 7G and G-B used same rail as early HD11. Maybe early D5 segments would be close? I know they almost fit the later 11s, its just that the sprocket disc on the 11-B is slightly larger than D5.

leeben85 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 13 Nov 2017 Location: upstate ny Points: 4	Post Options Post Reply Quote leeben85 Report Post Thanks(0) Quote Reply Posted: 14 Nov 2017 at 6:48am
	the undercarriage has absolutely been changed at some point i wondered about the possibility of d5 segments i have heard that they even made a conversion "ring" i wonder what it consisted of? if anyone has a part number for the cat part i would really appreciate it

CAL(KS) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 18 Sep 2009 Location: Chapman, KS Points: 3786	Post Options Post Reply Quote CAL(KS) Report Post Thanks(0) Quote Reply Posted: 14 Nov 2017 at 7:40am
	if its still allis spec track with 7g segment sprockets you can get new sprocket ring from Henderson Mfg. in Texas
	Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20 Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15

AC Mel Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 23 Jan 2010 Location: N.Ca. Points: 1109	Post Options Post Reply Quote AC Mel Report Post Thanks(0) Quote Reply Posted: 14 Nov 2017 at 9:24am
	Pictures? A picture is worth a 1000 words....or something like that....on the AC Forum there worth more than that.

DMiller Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 14 Sep 2009 Location: Hermann, Mo Points: 31515	Post Options Post Reply Quote DMiller Report Post Thanks(0) Quote Reply Posted: 14 Nov 2017 at 9:41am
	I had considered getting 7G-B segmented sprockets for my 7G and trying to adapt CAT segments but that could have been severely expensive. Not any other machine uses the Allis style mounting, would have to make an adaptor ring to install on the Allis hub and not in any way affordable. Would still have to replace the rail rollers too top and bottom and align for Cat rails. Edited by DMiller - 14 Nov 2017 at 9:43am

Ray54 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 22 Nov 2009 Location: Paso Robles, Ca Points: 4586	Post Options Post Reply Quote Ray54 Report Post Thanks(0) Quote Reply Posted: 14 Nov 2017 at 12:52pm
	Cat makes a weld on ring to take D5 segments as that was the fix for older D6 when they discounted the old D6 rail.I cannot say for sure but thinking the old was 6.5 inch pitch and the D5 is 6.91 inch. But the ring diameter is more important than track pitch.

DMiller Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 14 Sep 2009 Location: Hermann, Mo Points: 31515	Post Options Post Reply Quote DMiller Report Post Thanks(0) Quote Reply Posted: 14 Nov 2017 at 1:10pm
	That is correct for the rails. I did a little research nd could not come up with the old kit anywhere. With a fairly worn Allis 7.0 sprocket can handle the 6.91 Cat rails as the bushing IS smaller and will allow some slop, Rollers on the other hand will not work so well.

Steve allis dozer Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Access Joined: 10 Apr 2011 Location: Australia Points: 232	Post Options Post Reply Quote Steve allis dozer Report Post Thanks(0) Quote Reply Posted: 14 Nov 2017 at 4:59pm


Steve allis dozer Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Access Joined: 10 Apr 2011 Location: Australia Points: 232	Post Options Post Reply Quote Steve allis dozer Report Post Thanks(0) Quote Reply Posted: 14 Nov 2017 at 5:05pm


leeben85 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 13 Nov 2017 Location: upstate ny Points: 4	Post Options Post Reply Quote leeben85 Report Post Thanks(0) Quote Reply Posted: 14 Nov 2017 at 7:20pm
	uploads/17858/20171114_161611.jpg

AC Mel Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 23 Jan 2010 Location: N.Ca. Points: 1109	Post Options Post Reply Quote AC Mel Report Post Thanks(0) Quote Reply Posted: 14 Nov 2017 at 9:30pm
	Lee....the picture is helpful...thanks...looks to me like late model 11B series or E 10000 SER. # and up undercarriage...looking at the carrier rollers and sprocket indicates that...would like to see a picture of the pad bolt pattern..would also help...maybe I can post a picture tomorrow to explain that. Should be able to find those segments out there used somewhere....looks like the rails are wearing down too. If so you shouldn't have to start worrying about trying to convert anything unnecessarily.

JC-WI Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 11 Sep 2009 Location: wisconsin Points: 33856	Post Options Post Reply Quote JC-WI Report Post Thanks(0) Quote Reply Posted: 14 Nov 2017 at 9:39pm

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DMiller Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 14 Sep 2009 Location: Hermann, Mo Points: 31515	Post Options Post Reply Quote DMiller Report Post Thanks(0) Quote Reply Posted: 15 Nov 2017 at 5:48am
	Been upgraded at both ends, late model Idlers and sprockets.

Coke-in-MN Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: Afton MN Points: 41683	Post Options Post Reply Quote Coke-in-MN Report Post Thanks(0) Quote Reply Posted: 15 Nov 2017 at 7:11am
	I welded them D5 sprocket rings onto my D6 spokes after cutting off old sprocket teeth - Now that is a real experience in getting all the heats right and getting the welds in the proper order to prevent stress cracking welds . Would be welding one spoke and then hear the "TING" as the weld on opposite side would crack - grind out weld - reheat ring tack weld areas - reheat and try to weld until the next sound of a stressed weld - then start over again.
	Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something. "Challenges are what make life interesting; overcoming them is what makes life meaningful."

michale34 Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 15 Mar 2011 Location: arkansas Points: 472	Post Options Post Reply Quote michale34 Report Post Thanks(0) Quote Reply Posted: 15 Nov 2017 at 8:09am
	Kinda looks like a 7gb sprocket to me

DMiller Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 14 Sep 2009 Location: Hermann, Mo Points: 31515	Post Options Post Reply Quote DMiller Report Post Thanks(0) Quote Reply Posted: 15 Nov 2017 at 10:31am
	PLAIN 11B looks eerily similar !!! Same for idlers. I wonder how good the rails are, measured yet? Edited by DMiller - 15 Nov 2017 at 10:31am

AC Mel Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 23 Jan 2010 Location: N.Ca. Points: 1109	Post Options Post Reply Quote AC Mel Report Post Thanks(0) Quote Reply Posted: 15 Nov 2017 at 2:46pm
	It looks like an early HD11 with a later undercarriage. My measurements indicate that the later rollers and idlers would fit the old swingframe..the newer sprocket would fit the old shaft..so it should not be a problem to have all that stuff on there. Defiantly not 7G stuff. I believe the 7G sprockets would be a smaller diameter and yes would only apply to the earlier 9/11 rails. So I am assuming your pad bolts look like this....with one set being a little wider than the other That would also indicate that these are the later model rails that would go with that undercarriage. The earlier rails...the one that came with that tractor originally..would look like this...not being one set wider. So that being said....can't quite tell from your picture....guessing it should be the later rails too. Good rails are becoming harder to find...but there still out there...as are sprocket segments. The Henderson people may have a weld on sprocket rim for that size too. The 11EP and Es used weld ons before AC went to segments. Would be a crime to cut of the segment holes...but if you couldn't find segments...would be better than trying to convert to Cat.

Ian Beale Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 03 Oct 2011 Location: New South Wales Points: 974	Post Options Post Reply Quote Ian Beale Report Post Thanks(0) Quote Reply Posted: 15 Nov 2017 at 3:10pm
	FA 10 tracks are 6.93 pitch. I've no idea if the other dimensions are similar or if they are available if close. They do have the staggered grouser bolt pattern.

DMiller Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 14 Sep 2009 Location: Hermann, Mo Points: 31515	Post Options Post Reply Quote DMiller Report Post Thanks(0) Quote Reply Posted: 15 Nov 2017 at 3:12pm
	The FA10 should accept Cat rails fairly easily.