Mower blades for Haban 190-374-100

[Steve N Mi]

Originally Posted by Dirty Steve

Are the Gator blades hardened?? I'm not sure I like the idea of "machining" mower blades?

Does that mean when your blades get dull you just throw them away? lol

[cooperino]

Originally Posted by Dirty Steve

Are the Gator blades hardened?? I'm not sure I like the idea of "machining" mower blades?

If he was able to "machine" them.. grind off what he needed. I doubt they were truly hardened.

[Steve N Mi]

Originally Posted by cooperino

If he was able to "machine" them.. grind off what he needed. I doubt they were truly hardened.

I think I have read that the G-6 Gator blades are of a special hardened steel.

FWIW,

We do hear it said that something is so hard you can't touch it with a file BUT,
grinding is often the finish operation after heat treating tool steel to increase its hardness.

Think of it, if you can't grind a blade to sharpen it, what good is it? ( I hear ya, Remove and Replace $$$) Most of us don't have EDM's for in home sharpening of mower blades. (electro discharge machine)


Conclusion; If it's so hard that grinding won't cut it, then, I think it safe to say grass won't dull it.

[Terry C]

Originally Posted by cooperino

If he was able to "machine" them.. grind off what he needed. I doubt they were truly hardened.

Really? You can’t grind hardened steel?
I should sell my surface grinder then. It’s useless.

[Dirty Steve]

I grind cutting edges. Everyone does. However, I have never narrowed a mower blade to fit a spindle. That is the part that makes me queezy. I would think that would negate an possibility of a warranty.

[taylorjm]

Originally Posted by Dirty Steve

I grind cutting edges. Everyone does. However, I have never narrowed a mower blade to fit a spindle. That is the part that makes me queezy. I would think that would negate an possibility of a warranty.

I would just be concerned of it being out of balance. Something spinning that fast, that sharp, with just a little vibration, you would be lucky if it just wore out a bearing.

[john hall]

Fellows there IS such a thing as only hardening part of a piece of steel. It all depends on what the material is. I really doubt a lawn mower blade is truly hardened in the machining sense of the term. I bet we have all bent a blade, but how many of us have broken one? Hard items don't usually bend, they break. I'm thinking the tips of the blades may be induction hardened, case hardened, FNC treated, etc. If I get bored one day I'll take an old blade to work and see what it reads near the bolt hole. My guess is under 40rc.

[J-Mech]

Here, all save you all the time.....

https://youtu.be/ksINmihbD5o


Oh, and I think Gator blades suck for grass cutting. Dull quick, can't sharpen the wing easily, they don't suck up the grass, and they don't discharge as far. Mulching leaves, they are good at.

[MikeMasheris]

I milled down a set of Gator blades a few years back to fit the Haben pocket just leave a little radius in the corners you will be fine.I had no problems.

[cooperino]

Originally Posted by Terry C

Really? You can’t grind hardened steel?
I should sell my surface grinder then. It’s useless.

Of course you can. With a surface grinder. You think the average home owner had a surface grinder and proper wheel for hardened steel? The point was blades are typically not hardened to the point of not being able to sharpen them.


I said I doubt HE could machine them if they were hardened. Didn't say anything about you.