Sh40 flywheel hub


I've got a fairly elderly sh40h the flywheel has got a fair bit of play on it now, pretty much to the point that it very difficult to set up the blades. I have got away with greasing the centre before which helps a bit but its got to the point where I'm going to have to do something!

I'm assuming the splines on the shaft and in the hub collar have worn, has anyone got any bright ideas how to sort it out?

A shaft and collar where pretty dear last time I asked, and I'm not sure its was for a sh40h anyway, the shafts are different between reverse drive and trailed.

I have a even older one I'm pulling the bits out off so will try and put up pictures when I've got it out!




Here is the offending item, I fear could be a lost cause, its only worn where it operates, the splines need building and remachining but it is pretty hard.

Anyone know someone really hot on mengle parts?

Still Farming

Mixed Farmer
Glamorgan Wales
Nightmare and need pressing out I think what was done locally with one.
Also when you get that wobble ,never able to set up and sharpen and seen smash lift over blow Gaurds up to bits.


It all comes apart ok, its had a lot of grease! Just wondered if the wobble can be sorted with out a new hub and shaft?

Hoped someone might have already done it :cool:


Your not wrong, the one I've stripped out is marginally better than the one in my actual forager but not much.

Am I correct in thinking the shafts are different between the mounted and trailed? Any idea who might have a pair!



I thought as much, have mislaid my parts book so couldn't be sure, I need to get a micrometer on the shaft (also mislaid :rolleyes:) but I've a feeling most of the wear is in the hub?

If I could find a new hub that might keep it happy for a few more years.

Rejuvenating swards: Which option is best?

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Written by Brian McDonnell

Maintaining grass quality during mid-season grazing is important. Farmers can maintain quality by entering ideal grazing covers of 1,300 – 1,500kg DM/ha, and grazing down to a residual of 4cm every rotation.

If you are now in a situation where cows are not cleaning out paddocks as well as they should be, leading to the development of steamy grass within the sward, here are some options.

Common options for rejuvenating swards include:

  1. Take a silage cut, probably into bales, remove the material and start again with the aftermath...