Harder 750a discs

SilliamWhale · Jan 2, 2018

You do not want the boots to start wearing so dont let discs get too small. The Yanks swear that performance is compromised.at sub 17" i tend to run to 16.5 ish.

I found Apm discs not to last quite as long. I think for an extra tenner id keep genuine for the moment until we can get one of these aftermarket guys to supply Bellota

dontknowanything · Jan 2, 2018

SilliamWhale said:
You do not want the boots to start wearing so dont let discs get too small. The Yanks swear that performance is compromised.at sub 17" i tend to run to 16.5 ish.

I found Apm discs not to last quite as long. I think for an extra tenner id keep genuine for the moment until we can get one of these aftermarket guys to supply Bellota

Bellota will not supply.

APM said they are going to exactly copy the profile and bevel from the genuines, so any comparisons need to wait until they are available, impossible to compare otherwise.

Important to note that these are supposedly not the same as a vanilla APM disc, they are meant to be harder.

Feldspar · Jan 2, 2018

dontknowanything said:
Bellota will not supply.

APM said they are going to exactly copy the profile and bevel from the genuines, so any comparisons need to wait until they are available, impossible to compare otherwise.

Important to note that these are supposedly not the same as a vanilla APM disc, they are meant to be harder.

So in the meantime I suppose we'll have to order another set of JD discs for this spring and do the same experiment again with a few new APM ones. Any idea on price difference between JD and APM discs?

dontknowanything · Jan 2, 2018

Feldspar said:
So in the meantime I suppose we'll have to order another set of JD discs for this spring and do the same experiment again with a few new APM ones. Any idea on price difference between JD and APM discs?

They did tell me price, I think it was cheaper than genuine.

SilliamWhale · Jan 2, 2018

Feldspar said:
So in the meantime I suppose we'll have to order another set of JD discs for this spring and do the same experiment again with a few new APM ones. Any idea on price difference between JD and APM discs?

Ive bought Apm for as cheap as £18 and genuine for as dear as £40. Id say 35 for genuine and 28 for apm

Tractor Boy · Jan 2, 2018

It’s not really surprising those apm ones are a larger diameter than the jd ones after use. The John Deere ones have a much sharper bevel so less metal thickness to wear away than the apm ones.
I’ve only used jd ones and the original set lasted 400ha on a 4m machine to wear down to almost spot on 17”.

dontknowanything · May 8, 2018

APM now say they have made 55HRC discs with the exact same profile as the OEM ones. I'm being sent 8 to try out this autumn, hopefully they are good.

Clive · May 8, 2018

dontknowanything said:
APM now say they have made 55HRC discs with the exact same profile as the OEM ones. I'm being sent 8 to try out this autumn, hopefully they are good.

did they mention prices ?

dontknowanything · May 8, 2018

Clive said:
did they mention prices ?

unless they have changed in the last few months, they are cheaper than OEM

Clive · May 8, 2018

dontknowanything said:
unless they have changed in the last few months, they are cheaper than OEM

i ran a set a couple of years ago on the 4m we had and they lasted 80% OEM life but at the time at 50% the cost - they were not 55HRC though

OEM then got a bit cheaper so went back to them

Robert · May 8, 2018

Clive said:
i ran a set a couple of years ago on the 4m we had and they lasted 80% OEM life but at the time at 50% the cost - they were not 55HRC though

OEM then got a bit cheaper so went back to them

~ £22.50

SilliamWhale · May 8, 2018

Robert said:
~ £22.50

I'm a sceptic they're that hard at that price without knowing a source

Tractor Boy · May 8, 2018

SilliamWhale said:
I'm a sceptic they're that hard at that price without knowing a source

They can’t be that hard at that price surely. Last OEM ones I bought on a stock order were about £32, but no one seems to guarantee their hardness!

AgriLinc · May 9, 2018

We can offer HRC55 Italian OFAS Discs from stock https://www.agri-linc.com/john-deere-460mm-drilling-disc-oem-n283804-or-n283804.html

AF Salers · May 9, 2018

Unless the APM discs are harder material than they were 12 months ago then aren’t worth the lower cost , might as well get the JD ones.

dontknowanything · May 10, 2018

AF Salers said:
Unless the APM discs are harder material than they were 12 months ago then aren’t worth the lower cost , might as well get the JD ones.

That’s the point, these are new discs

dontknowanything · May 10, 2018

Robert said:
~ £22.50

I don’t think this is right for the harder ones

Robert · May 10, 2018

dontknowanything said:
I don’t think this is right for the harder ones

Yes - you're right - these are only 48-50 so no good

Louis Mc · May 10, 2018

Anyone tried the Spaldings ones?

dontknowanything · May 11, 2018

Unfortunately they still haven’t got the profile the same as OEM, the bevel is about 13mm compared to 18mm

Harder 750a discs

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0 %

Up to 25%

25-50%

50-75%

75-100%

100% I’ve had enough of farming!

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