Replacement belt for Mk1 Clarkson cutter grinder.

[Andrew TinsleyParticipant @andrewtinsley63637]

I  was looking for a 25mm x 1050mm flat drive belt for the above machine. The ones I could find were a few pounds above and below £50!

I wasn’t expecting such belts to be cheap but £50 seems a little excessive for what they are. Anyone know of a cheaper source?

Regards,

Andrew.

 

[duncan webster 1Participant @duncanwebster1]

I found belting online to be very helpful. You can use poly vee belts inside out if all else fails

[Clive FosterParticipant @clivefoster55965]

Standard belt is, I think, nylon reinforced PU about 1 mm thick. I got mine from local bearing and transmission supplier ages ago at what seemed a reasonable price for made to order. memory says under £10.

Poly vee seems to work fine Vee side down on flat belt pulleys with a very effective drive. Possibly too effective for a grinding set up where best practice is said to be to run things slack enough that if things hang up the belt slips rather than the wheel being damaged or exploded (yikes!).

I found getting the new belt to run true with the standard motor mount set-up of four short pivoting links a nightmare. I modified my set up to have a something closer to simple pivot set-up by fixing the angles of the lower arms and replacing the slot with three 11/32″ holes at 7/16″ spacing. The slot in the top arms allows a bit of twist if needed to get the motor and spindle shafts aligned.

Much easier to set up.

PM me for PDF format drawing if needed.

Clive

[renardiere7Participant @renardiere7]

Looking back I paid £37 + Vat and delivery in 2017.

 

There’s a fair bit of crown on the wheels, might be tricky getting a inside out poly-bee to run true.

[peak4Participant @peak4]

Have you tried Tony?
https://store.lathes.co.uk/parts/drive-belts/betalon-multiply-flat-belting?v=70

Bill

[Andrew TinsleyParticipant @andrewtinsley63637]

Seems that the all in price for a replacement belt is not far off the sub £50 mark from where ever you source it. Suppose I shall have to fork out and smile .

Thanks everyone for your input.

Andrew.

I wonder what the Aliexpress or Temu prices are like? Somewhat academic, as I can’t seem to get the right word search combination!

[Rod ClemettParticipant @rodclemett60985]

The one fitted to mine when I bought it was a 1040x25mm PU11.

I bought a replacement recently from http://www.gasboosterbelts.co.uk for about £22

Clem.

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