Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Discussion Forum

Torque

Welcome Guest, Log in or Register
Author 
agco puller

10-04-2001 09:12:04




Report to Moderator

I found some old Nebraska Test data on some popular pulling tractors. Starting about 1952 Nebraska started measuring torque at the belt pulley. See what you think as really it is torque that keeps that sled moving down the track. My data is from about 1952 thru 1954 but it hits a lot of our favorites.

A-C WD45 -265ft/lbs @rated 1400 rpm & 288 max.@867 rpm
Case LA _399ft/lbs @rated 1150 rpm & 433 max@800 rpm
JD 50 -168ft/lbs @rated 1250 rpm & 184max@800 rpm
JD 60 -229ft/lbs @rated 1000 rpm & 251max@650 rpm
JD 70 -270ft/lbs @rated 1000 rpm & 288max@750 rpm
MH 44SPEC.-284ft/lbs @rated 1350 rpm @ 309max@968 rpm
MM UB -290ft/lbs @rated 1300 rpm @ 306max@900 rpm
OliverSu88-333ft/lbs @rated 1600 rpm @ 348max@1000 rpm
Cockschutt 50 -321ft/lbs @ rated 1650 rpm @ 348max@ 1146 rpm.
All above listing were using the then current ASTM 76 Motor Method octane (82) gasoline for fuel.

[Log in to Reply]   [No Email]
old puller

10-05-2001 14:12:13




Report to Moderator
 Re: Torque in reply to agco puller, 10-04-2001 09:12:04  
Yep youngsters I am still here, just spend most of my time watching instead of posting. Let me tell you guys something that I found holds true everytime. Lets assumme that we are talking regular old tractors here, not a gutless wonder that can't spin out in low gear, or a multi engine hotrod that pulls fast enough to make the sled momentum a factor, but a regular farm stock or modified farm stock type tractor. Here is the tip; Quit worrying about your dern motor. If it runs on all cylinders and pulls until you lose traction, 20 more Ft Lbs of torque aint going to get ya an extra inch. I never have seen a "motor head" that was a good puller. Too many other things are more important than a motor tweeked to the inth degree.

[Log in to Reply]  [No Email]
G Taylor .......yes,no maybe

10-04-2001 18:33:42




Report to Moderator
 Re: Torque in reply to agco puller, 10-04-2001 09:12:04  
Some good info there, wondered what sort of torque rise some of those old girls had. Torque,HP,torque rise & rated rpm(s) are terms sometimes misunderstood. HP= torque x rpm divided by 5252. However torque rise can make a lower HP tractor feel more powerfull & pull more than another higher HP tractor when both are lugged down. A two stroke Detroit has a flat torque curve & they can feel gutless unless the operator understands he had peak volumetric efficiency to work with the entire rpm range. Not just peak torque when only lugged to 1/2 to 2/3 of full rated rpm.

[Log in to Reply]  [No Email]
Mr Torque

10-05-2001 13:23:20




Report to Moderator
 Re: Re: Torque in reply to G Taylor .......yes,no maybe, 10-04-2001 18:33:42  
torque (tôrk)n. The moment of a force; the measure of a force's tendency to produce torsion about an axis, equal to the vector product of the radius vector from the axis of rotation to the point of application of the force and the force vector. A turning or twisting force.

It is possible to have torque without rotation. There could be torque on the axle but the tires do not move. So torque does not make the sled move. It is touque and rotation (horsepower) that moves the sled. HP = torque (ft/lbs) x RPM /5280.
You must have torque and RPM to get horsepower. Horsepower is a way to measure work. Torque is not.

[Log in to Reply]  [No Email]
Dave G

10-06-2001 19:46:42




Report to Moderator
 Re: Re: Re: Torque in reply to Mr Torque, 10-05-2001 13:23:20  
FYI: There is also a definition for Power in the linear world that nobody here talks about: Power = Force * Velocity. In the rotational world it is Power = Torque * Angular Velocity.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy