Bucket Ears for quick attach system for KX 71,91, 121, 040, LH45

[TodAmon]

Given the number of machines that use the Kubota K7870 quick attach, and its popularity, I'm surprised that I can't find any information or diagrams that would allow me to cut my own ears (to make my own buckets, attachments, etc.). Is everybody buying the ears from Kubota? Anybody have a diagram? Spent several hours and found the same dozen posts, but nothing actually useful. I have two buckets -- but thought perhaps more precision would be nice, vs. me just tracing the ones I have.

Hoping some out there have the info! Many thanks.
-Tod

 

[Sfrankland]

I have a Kubota U35-4 with the quick attach. For mine I made a template and just trace it out and cut them on the bandsaw. Once done I clean them up on the mill. I had planned on drawing a set in cad and having them cut on a cnc table but hasn't had time to do so.

 

[iointerrupt]

Not much help for you, but the CAD files I use for the smaller Kubota K7966 Quick Attach (KX41, U15) are posted here.

I made them like Sfrankland, traced an existing bucket, scanned the trace, then traced the scan in a CAD app. Most of the dimensions on the K7966 were easy non-metric numbers. Like spacing between main pins is something like 3.00". I found the lack of machined reference surfaces makes doing a true reverse engineering of them difficult though. You have 3 holes, which you can reference easily to each other, but not to the overall shape.

With a little touchup though, my files CNC plasma cut "good enough". Not as nice as Kubota's machined hangers however. Be nice to have official drawings, but I have little hope of that happening.