Would this Work for the Thrust Washer??

Farmall Cub Forum -- Questions and answers to all of your Cub related issues.

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.

Would this Work for the Thrust Washer??

Postby AL Farmall Boy » Fri Nov 09, 2012 9:55 am

I found this washer at McMaster Carr and it matches up to the CASE/IH steering worm shaft thrust washer I ordered. The measurments for the Case/IH washer are close, and it looks like if I drill the center hole out on the McMaster-Carr washer that it would work. What do you guys think?? It is considerably cheaper too!! $6.00 compared to $30.00. I have added the drawings and deminsions of both. Please excuse my quick and dirty freehand pencil sketch. :D
Attachments
Cub Steering Thrust Washer_a.JPG
Steering Thrust Washer Substitute.JPG
AL Farmall Boy
501 Club
501 Club
 
Posts: 1192
Joined: Tue Aug 10, 2010 6:38 pm
Zip Code: 35111

Re: Would this Work for the Thrust Washer??

Postby John *.?-!.* cub owner » Fri Nov 09, 2012 10:15 am

Looks like it should work, but be sure your drill bit is very sharp. That washer is oil impregnated, and unless the bit is real sahrp it will just spin in it rather than cut.
"The Constitution is not an instrument for the government
to restrain the people, it is an instrument for the people to restrain the
government lest it come to dominate our lives and interests." Patrick Henry
User avatar
John *.?-!.* cub owner
Team Cub Guide
Team Cub Guide
 
Posts: 19451
Joined: Sun Feb 02, 2003 2:09 pm
Location: Mo, Potosi
Zip Code: 63664
Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.

Re: Would this Work for the Thrust Washer??

Postby Eugene » Fri Nov 09, 2012 10:21 am

Measurements are close enough. Probably have to deburr the brass washer, but that's no big deal.
I have an excuse. CRS.
Eugene
Team Cub Mentor
Team Cub Mentor
 
Posts: 12500
Joined: Fri Jul 02, 2004 9:52 pm
Location: Mo. Linn
Zip Code: 65051
Circle of Safety Award
Circle of Safety: Y

Re: Would this Work for the Thrust Washer??

Postby AL Farmall Boy » Fri Nov 09, 2012 10:26 am

You mean after drilling? I guess a file would do the trick, right?
AL Farmall Boy
501 Club
501 Club
 
Posts: 1192
Joined: Tue Aug 10, 2010 6:38 pm
Zip Code: 35111

Re: Would this Work for the Thrust Washer??

Postby Jim Becker » Fri Nov 09, 2012 11:16 am

That is just a plain washer, not oil impregnated. Drilling shouldn't be a problem.

I think it would work OK. However, it is just a washer. I think an actual machine bushing would probably be a little more uniform in thickness and thus a better choice. McMaster-Carr has machine bushing 7814K36 which is 1 x 2 x 1/8 in solid bronze and costs $4.37. I'm not sure if the 2" OD would cover the entire thrust surface. You would need to check the parts. If it doesn't, they have 7814K5 which is the same except for a 2 7/8 OD for 8.47. I don't think the extra OD would interfere with anything. If you want oillite, they have the same dimensions in oillite bushings for about half the cost of the solid bronze.
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

Re: Would this Work for the Thrust Washer??

Postby AL Farmall Boy » Fri Nov 09, 2012 2:07 pm

Could you elaborate more on the different choices Jim? I'm not very familiar with the different types of bushings and what oillite is. I thought the 3 bushings (including the thrust washer) in the gearbox were brass. Are they bronze? I didn't realize the thrust washer was also a "machine bushing"....I just figured it was a brass washer. What would be the best one for my application?
AL Farmall Boy
501 Club
501 Club
 
Posts: 1192
Joined: Tue Aug 10, 2010 6:38 pm
Zip Code: 35111

Re: Would this Work for the Thrust Washer??

Postby Jim Becker » Fri Nov 09, 2012 2:38 pm

A washer is something you use with a bolt to distribute force etc. It is normally used with non-moving parts. A machine bushing distributes force but is untended for moving/rotating parts where friction is a factor. (This is all an oversimplification, and somebody will no doubt feel compelled to post a comment.) Brass is copper and zinc. Bronze is mostly copper and tin. Bronze is better for high friction applications. So machine bushings are typically made of bronze. Different grades of bronze are made by using different ratios of copper and tin as well as adding in other metals. Oilite is porous bronze where the pores have been filled with oil. "Oilite" is a trade name.

Here are more details about the difference between brass and bronze:
http://www.diffen.com/difference/Brass_vs_Bronze
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

Re: Would this Work for the Thrust Washer??

Postby AL Farmall Boy » Fri Nov 09, 2012 3:45 pm

Thank you for the clarification Jim. So would the original bushings and replacements from Case/IH be Brass or Bronze? Would it matter if I had some bushings made from brass? I am having some made and told the machinist to order brass. Whether he's done that yet, I'm not sure.
AL Farmall Boy
501 Club
501 Club
 
Posts: 1192
Joined: Tue Aug 10, 2010 6:38 pm
Zip Code: 35111

Re: Would this Work for the Thrust Washer??

Postby Jim Becker » Fri Nov 09, 2012 4:22 pm

Nothing high speed there, probably doesn't make much difference. Given the choice, I'd use bronze.
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

Re: Would this Work for the Thrust Washer??

Postby AL Farmall Boy » Fri Nov 09, 2012 5:12 pm

Ok. Thank you!
AL Farmall Boy
501 Club
501 Club
 
Posts: 1192
Joined: Tue Aug 10, 2010 6:38 pm
Zip Code: 35111

Re: Would this Work for the Thrust Washer??

Postby Steve K. CALIF » Sat Nov 10, 2012 4:08 pm

In the parts selling business for many years and found the Oilite bushings were porous in order to hold the lubricant. In certain applications were there is a high load and a "shock" loading or continuous vibrations, the oilite would sometimes mash itself to oblivion. Or, even shatter on extreme applications. Sometimes it is better to use a bronze or brass washer or bushing that has an oil groove cut into it for the lubricant to ride in. I do not know if your application has any of the above issues, just my 2 cents of learning the bearings business. Thanks, Steve K.
Steve K. CALIF
10+ Years
10+ Years
 
Posts: 371
Joined: Mon Feb 03, 2003 1:05 pm
Location: Madera, CA.
Zip Code: 93636
Tractors Owned: 1947 Cub #550
1962 LoBoy
Circle of Safety Award
Circle of Safety: Y


Return to Farmall Cub

Who is online

Users browsing this forum: No registered users and 13 guests