LMT collets or MBP?

[dmitry100]

Hey guys,

What do you guys think of the LMT / H&M couplers sold by Lehner? Apart from their convenient size-- are they any better than MBP ones?

Do they actually need a flat spot on the motor shafts, or do they function sort of like the MBP ones w/o flat spots?

[dmitry100]

[nata2run]

I like the LMT better, but MBP has a newer version that's a bit more solid. I've twisted the old version a couple times. (The threaded part) With the LMT you might just want a flat spot where the grub screw sits on the shaft, as it's not a clamp system like the MBP.

[dmitry100]

Hmm... I asked LMT support guys and they were saying it doesn't really need a flat spot, but maybe a tiny one lol.

Do you know if LMT is able to make these flat spots?

[StevenBryant]

I prefer the MBP collets....


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[Darin Jordan]

Which couplers are you referring to for the MBP? Their wire-drive couplers are amazing.

[kfxguy]

I prefer the mbp.

[Fluid]

I've used both and prefer the MBP. No need to grind the shaft, ample clamping force on both ends, perfectly true. Be sure to use NeverSeez or similar compound on the threads and conical surfaces (takes VERY little).


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[dmitry100]

Fluid: Would CorrosionX work just as good instead of NeverSeez? (since I already have it and all)

[Fluid]

No, you want a product designed to stay on the threads under high compression and survive high shear loading. I suppose that CorrosionX is better than running dry but it would require reapplication every trip. Best to use the right product for the job.


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[ray schrauwen]

I love my H&M couplers. They fit more motor mounts compared to mbp. MBP may be superior however they cost more too.
I use anti-seize on all my collets.