Pin clearance?

Workerbee

Active member

Equipment
Zd21
Mar 1, 2020
167
57
28
MN
I need to replace a couple bushings on a dozer. The originals are 1.965” diameter and need to be torched out as they will not come with 20 tons of pressure.
Now I can get new replacements for $480/pr at the same specs, or can get some that are quite close but the diameter is 1.961 for $185/pr.
Quality is equal, (same mfgr) what would you do? Will .004 extra clearance on a 2” pin cause issues?
 

Daferris

Well-known member

Equipment
LX2610
Nov 23, 2021
477
397
63
Mid-Michigan
Back years ago when I was a machinist in the stamping press repair trade. The standard was .001 inch per inch of diameter. I would think that (I am assuming these are pins for the tracks). with a an extra .004" of slop they will wear quite fast as grit ect will have more room to enter the joints. They also will be pretty sloppy,
 
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