BN PTO shaft

Farmall B & BN Tractors, 1939-1947

Moderator: Team Cub

Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.

BN PTO shaft

Postby Phillip W. Lenke » Fri Jan 26, 2007 6:15 am

Were there different sized PTO shafts for the BN
I was over at a members home last evening, His BN had straight PTO sized to the cub
and our BN has a standard PTO
His is a 44 ours a 45
Just courious
Thanks Phil
"Work Hard ,Play Often,Care Always"
Phillip W. Lenke
5+ Years
5+ Years
 
Posts: 1479
Joined: Wed May 25, 2005 1:21 pm
Zip Code: 43449

Postby Rick Prentice » Fri Jan 26, 2007 7:16 am

Hi Phil. I looked at the parts listing on the S/P cd and they show a 1 1/8-6 spline or 1 3/8-6 spline, but I didn't see any 10 spline option.

Rick
When I told my dad I've been misplacing things and doing stupid stuff----His reply---"It only gets better"
User avatar
Rick Prentice
Team Cub Guide
Team Cub Guide
 
Posts: 5359
Joined: Mon Nov 01, 2004 7:24 am
Location: OH, Grand Rapids (historical town along the Maumee River)
Zip Code: 43522
Tractors Owned: 47(circle cub),48(Floyd),49,50demo from GW's collection),51,52(backhoe),53,54,55(Nickles)
Circle of Safety Award
Circle of Safety: Y

Postby Jim Becker » Fri Jan 26, 2007 10:25 am

Like Rick said, A/B models came with either the older ASAE standard 1 1/8 6-spline shaft or the newer 1 3/8 6-spline. There was an conversion package that IH sold to install the bigger shaft into earlier tractors. Also, used PTO attachments got installed on different tractors so today it is difficult to predict what will be found on any particular tractor. The Parts Catalog doesn't give a serial break, so it is hard to find out when the change happened.

In response to your question, I happened to find the right place to look for the information. According to the '48 Red Tractor Book, the A/B went to the large PTO shaft at seraial number 96390 (start of 1944). So your friend's '44 (if really a '44) should have the big shaft. While on the subject, other models changed at:
H 118000
W-4 7295
O-4 7337
For the H, that would have been during '42, with the others in '43. Since A/B production was shut down in '43, the serial number break for the new shaft was at the time they started back up.
User avatar
Jim Becker
Team Cub
Team Cub
 
Posts: 11920
Joined: Sun Feb 02, 2003 3:14 pm
Location: MN
Zip Code: 75048
Circle of Safety Award
Circle of Safety: Y

Postby Phillip W. Lenke » Fri Jan 26, 2007 12:36 pm

Thanks
Rick it was six spline version.
The fellow believes it to be a 44 a per PO I did not actually look to verify
Thanks Phil
"Work Hard ,Play Often,Care Always"
Phillip W. Lenke
5+ Years
5+ Years
 
Posts: 1479
Joined: Wed May 25, 2005 1:21 pm
Zip Code: 43449


Return to Farmall B & BN

Who is online

Users browsing this forum: No registered users and 1 guest