Topper Donut Drive Coupling - help please

[Grouse]

So today I have replaced a Donut drive coupling - however on the replacement there is a steel outer band around the outside edge - please see piccies.

What’s its purpose ? And do I remove this now the donut is fitted ? or is it meant to stay in place ? the original donut didn’t have this.
Many thanks

 

[Blue.]

It’s purpose is to hold it in shape while fitting.
Remove once fitted.?

 

[Grouse]

Fantastic - thank you !!!!

 

[farmer pickles]

Fantastic - thank you !!!!

Your lucky that you didnt cut the band off first or the holes wouldnt line up.

 

[MrNoo]

Just like a Lotus Elan driveshaft rubber coupling.

 

[Dave W]

Just like a Lotus Elan driveshaft rubber coupling.

Been fitted to millions of things over the years. Old fert spreaders used to have similar instead of a uj on pto

 

[2wheels]

Just like a Lotus Elan driveshaft rubber coupling.

and hillman imps.

 

[MF-ANDY]

Is that a major topper. There is a much better modified one available from them. Those old ones don't last long

 

[farmerm]

same on our McConnel topper... I fitted a new one this year and it hasn't done many hours but is already to fail we have bloody big ant hills and they don't yield when the ground is dry! We have a different tougher set up on the other side, it is much tougher type of donut. Cost of the shaft upgrade was eyewatering but the original shaft disintegrated when its donut failed

Thinking might bite the bullet and upgrade the other side too rather than replacing the old style donut after each couple of days topping.

 

[MF-ANDY]

same on our McConnel topper... I fitted a new one this year and it hasn't done many hours but is already to fail we have bloody big ant hills and they don't yield when the ground is dry! We have a different tougher set up on the other side, it is much tougher type of donut. Cost of the shaft upgrade was eyewatering but the original shaft disintegrated when its donut failed

Thinking might bite the bullet and upgrade the other side too rather than replacing the old style donut after each couple of days topping.

The major one is a direct replacement. Only shorter bolts are needed.

 

[nails]

Been fitted to millions of things over the years. Old fert spreaders used to have similar instead of a uj on pto

Yup, David Browns had them on the drive to the Hydraulic pump.

 

[Grouse]

Is that a major topper. There is a much better modified one available from them. Those old ones don't last long

yes it’s a Major 9’ topper, all the donuts are original (9 yrs old) and still fine apart from this one until after hitting something....

 

[MF-ANDY]

yes it’s a Major 9’ topper, all the donuts are original (9 yrs old) and still fine apart from this one until after hitting something....

As I said there is a different type available that won't fail

 

[farmerm]

The major one is a direct replacement. Only shorter bolts are needed.

McConnell needs a drive with a UK because the gearbox isn’t directly in line

 

[Fordbluegrey]

How tight do you do the bolts up that hold the donut to the drive

 

[Dave W]

How tight do you do the bolts up that hold the donut to the drive

I’ve no figures but they should be fine thread which would normally suggest FT

 

[Fordbluegrey]

How do you time the 2 blades so they don’t hit each other

 

[Dave W]

How do you time the 2 blades so they don’t hit each other

Should be 90deg to each other. But they are contra rotating so can never hit anyway

 

[Fordbluegrey]

One seem to touch when slowing down