Centec 2b belts and mk3 quill DRO

[jason evansParticipant @jasonevans10206]

[jason evansParticipant @jasonevans10206]

Hi all

looking to replace belts on my centec 2b (mk3 quill head), can anyone help with where to find a modern alternative. Also, has anyone fitted a vertical DRO to the mk3 quill head. Would be very handy to have one, but not sure how it could be fitted.

thanks

jay

[not done it yetParticipant @notdoneityet]

What do you consider a ’modern alternative’? Are you expecting to change the pulleys? I just replaced mine with the same section V belt, bought from my local bearing company ABC.

Mine has a single belt, even though the motor drive is by twin sheave pulleys.

My quill (which had a dro read-out already fitted), has the reader fitted to the vertical head body and the scale screwed (by a suitable bracket to line things up) to the quill. It appears that it was nothing special and a straight-forward job, when fitted.

Edited By not done it yet on 01/03/2021 07:01:45

[Gary WoodingParticipant @garywooding25363]

The belts on mine are the same as NDIYs. I fitted a quill DRO as shown in the photo. Email me if you need more details.

[jason evansParticipant @jasonevans10206]

Thanks guys. Don’t want to be changing pulleys, just want new belts. Any links to what and where I can find them.

thanks for he DRO pic, exactly what I’m after. Any more details would be much appreciated

atb

jay

[Dave HalfordParticipant @davehalford22513]

The belts are 'A' section the length depends on the existence of a raising block or standard. The current size is written on the belt back. You can find belt length calculators on google that work from a steel rule measurement round the pullies.

[jason evansParticipant @jasonevans10206]

Ok cheers will take a look. No riser block used.

atb

jay

[noel shelleyParticipant @noelshelley55608]

Once you know the section or have the old one take it to transmission specalist, EG Hayleys their a national company and I have always found them VERY helpful, and if you get the wrong one they will change it. Good Luck Noel.

[Gary WoodingParticipant @garywooding25363]

Posted by jason evans on 01/03/2021 08:18:14:

thanks for he DRO pic, exactly what I’m after. Any more details would be much appreciated

**THIS** should link to a PDF describing my mods to a MK3 VH.

Let me know how you get on.

Edited By Gary Wooding on 01/03/2021 13:08:55

[jason evansParticipant @jasonevans10206]

Thanks again guys. Will have a good read of that pdf Gary, many thanks.

[not done it yetParticipant @notdoneityet]

My quill read-out looks almost identical likely exactly the same) to that on Gary’s machine. As I wrote earlier, I source my belts from ABC.

Without a location it is rather pointless giving specific details – unless it is an internet one. My local supplier provides a comprehensive service at very competitive prices, so I support them by using their outlet.

If I don’t know the belt number, I take along the belt and they match it. If I don’t have the belt I measure the pulley diameters and the centre distance – and then calculate the shortest belt length required. There is an adjuster on the Centec machine, so one size up usually suffices. A cam belt tensioner from a car will make a good replacement if yours is missing.

[jason evansParticipant @jasonevans10206]

Just looked at belts. The two long ones are

Fenner A1600 A64

and the short one is

Balaco R567

im in Kent so will have a search around

atb

jay

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