Farm Equipment - D 14 Belt Pulley RPM

Print Page | Close Window

D 14 Belt Pulley RPM

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=185508
Printed Date: 20 Sep 2025 at 4:15pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: D 14 Belt Pulley RPM

Posted By: Tyee II
Subject: D 14 Belt Pulley RPM
Date Posted: 02 Jan 2022 at 8:21pm

Looking for information on the operating speed of a D 14 belt pulley. Wanting to run a feed grinder setup with a pulley and would like to know what RPM the pulley on the D 14 runs, I can probably find a shaft tach but thought someone here may have information that would be helpful. thanks in advance for your replies

Replies:

Posted By: DrAllis
Date Posted: 02 Jan 2022 at 8:59pm

Engine speed at 1650 RPM, the PTO runs 540 RPM and belt pulley is 1384 RPM on a D-17. Similar numbers for a D-14.

Posted By: KJCHRIS
Date Posted: 02 Jan 2022 at 9:03pm

D15 which is the same as your D14 has belt pulley RPM of 1384 @ 1650 Engine RPM, this gives a belt speed of 3260 Feet per Minute. Hope this helps.

-------------
AC 200, CAH, AC185D bareback, AC 180D bareback, D17 III, WF. D17 Blackbar grill, NF. D15 SFW. Case 1175 CAH, Bobcat 543B,

Posted By: DrAllis
Date Posted: 02 Jan 2022 at 10:00pm

Besides being way too fast, it is up in the air quite a bit compared to a PTO shaft normal location.

Posted By: DiyDave
Date Posted: 03 Jan 2022 at 4:47am

https://youtu.be/zwwW_VgcqYY" rel="nofollow - https://youtu.be/zwwW_VgcqYY

-------------
Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need!

Posted By: Jim.ME
Date Posted: 03 Jan 2022 at 6:07am

From the D14 Operating Instruction Manual

Belt Pulley (optional)

Diameter 9"

Face 6-1/2"

RPM (1650 Engine Speed) 1384

Ft. per min. (1650 Engine Speed) 3260

D14 is the same as the other models as posted.

Posted By: B26240
Date Posted: 03 Jan 2022 at 6:33am

Dia of drive pulley X RPM devided by the dia of driven pulley = RPM of driven pulley This formula comes from the Machinerys Handbook 1914 edition pg 715. Flat belts work the best when run at certain speeds depending on what they were made of. 3000 feet per min can be used as a rull of thumb. All early belts were made from leather and there are still some around, if you find one it most likely is 100 years old. The world ran on flat belt power untill the V-belt came along and remember Allis Chalmers was right in there developing the V-belt system with what they called (tex rope drive )