About the steering system.

[Gord Baker]

The Shoulder Bolt that helps secure the Rack is on JD models.

 

[Bange]

StarTech​

Your measurements are correct (3/4 x 1-3/8) and there are no common bearings with such measurements... not even in the metric world.
A possible solution is bearing 6003 (17 x 35 x 10mm), but you have to rough 2.05mm on the axle, place a shim on the side of the wheel, change the "C" clamp and make a spacer between the inner and outer bearing.
The most difficult thing is to rough 2.05mm on the axis that has a curve.
This metric bearing costs USD 20.00 with 10 units here.

If I buy this XIKE, 4 units costs USD 13.99 + 21.87 (shipping) + taxes in my country and it still takes 27 business days (by ebay).
Order Summary by Amazon: $11.99 + Shipping and Handling: $16.68 + Deposit for import fees:: US$ 27.09
Order total: $55.76
In the end, each bearing costs US$13.94.

 

[Bange]

Does anyone know what material the bushing #74 (Bearing Col Strg.) is made of?
I found a world manufacturer of bushings and the advertisement seems to be a good thing... do you know?

iglide® Plain Bearings Made From Self-Lubricating Plastic | igus®

Learn more about self-lubricating plastic plain bearings from iglide®, designed for maximum service life in extreme industrial conditions with very low cost.

www.igus.com

 

[StarTech]

For those Briggs PN 709294 use Husqvarna PN 532003366 which are the same plastic bearings.


Or can use some the after market ones that are out there.

Now the website you post they would be

 

[StarTech]

Also here is a couple other aftermarkets.

Rotary 8745 KING PIN BUSHING 3/4 X 53/64 AYP

Stens 225-700

 

[Bange]

Good information and with measurements...
But in terms of material... the manufacturer Igus reports dry working and dirt resistant... looks good as it would eliminate the need for grease.
Since Murray, Husqvarna, etc... originally use grease, it looks like the original stuff is not as high quality.
Has anyone used or uses this one from Igus?

 

[Gord Baker]

I hope no one is 'over-thinking' this.... The Bronze Oil-lite ™ bushings work well in all applications and are easily replaced and cost effective.

 

[StarTech]

I don't there enough material to resize for the oil-lites We are talking about 1/16 clearance here. I don't the oil-lite can be machined that thin with them cracking.

For the Igus, if I was to use them I would still grease them. at least it wouldn't hurt. But since the replacements here are under $2 each it is simpler to just use them.

Now this was a cast iron axle then putting the oil-lites works but is a pain the ream out the axle holes.

 

[Bange]

That's what I thought about the thickness...
This is the material used in the bushings for the front wheels... at least OREGON claims.

 

[Bange]

I'm in contact with the representative here, in fact the indication is the M250, code MYI-12-12.
Depending on the price, I already order...