| Author |
Message |
Gordon Youd
Unregistered guest
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| Posted on Friday, October 19, 2007 - 11:48 am: |
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I need to purchase a 16 tooth pinion off you.
How do I work out what MOD I need?
Regards, Gordon. |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 606
Registered: 10-2004
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| Posted on Sunday, October 21, 2007 - 8:52 am: |
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Gordon,
The MOD or Module is a number that relates the number of teeth to the diameter of the gear.
MOD = PCD / N where PCD is the pitch circle diameter and N is the number of teeth.
The outside diameter is:
OD = (N+2) x MOD
Hope that helps |
mr mckenzie
Unregistered guest
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| Posted on Tuesday, September 16, 2008 - 11:17 am: |
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hi, could you please advise if you could bore a gear out for me before dispatch, ( obviously at extra cost ) i have already purchased 3 gears from you and attempted it myself and all three times made a mess of it. this is the final part of my long ongoing project and it is really starting to annoy me, basically i am desperate. i dont know of any engineering places near me that would do something like this for me. i am looking for your own make of mod 2 gear with 40 teeth, bored out to 17mm. please please please HELP!!!!! |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 871
Registered: 10-2004
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| Posted on Wednesday, September 17, 2008 - 7:18 pm: |
|
Hi,
We would really like to be able to help but we are currently not set up to carry custom machining on a production basis, certainly not economically. Whilst we do have modest machining facilities, we are not able to machine to the tolerances demanded by the market place.
After saying all that, we really do try and help customers where we can. What material are you using for the shaft? If it is our silver steel then I might be persuaded to bore out a gear to suit that. If we did bore out this gear, it would be to a tolerance of probably +0.05mm, can you live with that? |
ian mckenzie (Ian160981)
Member
Username: Ian160981
Post Number: 11
Registered: 5-2008
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| Posted on Sunday, September 21, 2008 - 11:17 pm: |
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hi, thanks for your reply, i could certainly live with a tolerance of +0.05mm it well beats a tolerance of +/-3.0mm lol. i can confirm that it is your brand of 17mm silver steel and that it is the 40 tooth mod 2 gear i will be using, again your own brand. please could you advise on what to do next ( will i just purchase another gear and attach a note that i would like you to bore it out ) also could you advise me of the cost. i am really gratefull of your help in this matter.
thanks
ian |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 874
Registered: 10-2004
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| Posted on Monday, September 22, 2008 - 6:30 pm: |
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Ian,
If you place an order on-line with a note attached as you mentioned. Not sure of an exact price as it will be based on time taken but the boring out to 17mm will be under £10.
Regards
Paul |
ian mckenzie (Ian160981)
Member
Username: Ian160981
Post Number: 12
Registered: 5-2008
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| Posted on Monday, September 22, 2008 - 7:22 pm: |
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Paul,
how will i pay you for this service? when i go through checkout it will only charge me the price of the gear, is this correct?
regards
ian |
ian mckenzie (Ian160981)
Member
Username: Ian160981
Post Number: 13
Registered: 5-2008
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| Posted on Monday, September 22, 2008 - 7:34 pm: |
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hi paul,
me again.
i just purchased the gear and also another 12 tooth gear although i do not need this modified. could you please send me an invoice or instructions on how to pay for the labour, again thank you very much for all your help.
regards
ian |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 875
Registered: 10-2004
|
| Posted on Monday, September 22, 2008 - 7:47 pm: |
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Hi Ian, How did you pay? If you quoted your card details then we will let you know prior to dispatch the full amount for your approval. If you paid by Paypal, we will send you another payment request for the balance. If you paid by Worldpay, then we will have to sort that out later.
Regards
Paul |
ian mckenzie (Ian160981)
Member
Username: Ian160981
Post Number: 14
Registered: 5-2008
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| Posted on Tuesday, September 23, 2008 - 8:10 am: |
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hi paul,i left my card details with you so please just debit the amount you require. as you mentioned please inform me of total payable and time of dispatch, once again thank you very much your a life saver.
regards
ian |
ian mckenzie (Ian160981)
Member
Username: Ian160981
Post Number: 15
Registered: 5-2008
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| Posted on Wednesday, September 24, 2008 - 6:02 pm: |
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hi paul,
i just got an email saying my order is dispatched, but no cost of labour has been taken from my account. could you advise me if the work was done before dispatch or was that just a system generated email and the work has still to be done?
thanks
ian |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 877
Registered: 10-2004
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| Posted on Wednesday, September 24, 2008 - 6:40 pm: |
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Ian, I am not able to do the machining until Friday and that Email is sent just prior to the goods being sent out. So it looks like a mistake on our part which we will have to sort out later. I will still machine your gear on Friday and let you know when it is done. Did you put a note on your order about the machining?
Regards
Paul |
ian mckenzie (Ian160981)
Member
Username: Ian160981
Post Number: 16
Registered: 5-2008
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| Posted on Thursday, September 25, 2008 - 8:09 am: |
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hi paul, yes i attatched a note about the machining, so hopefully whoever reads the notes will have held back my order, if not can i return the unmachined gear back to you?
regards ian |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 880
Registered: 10-2004
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| Posted on Thursday, September 25, 2008 - 1:12 pm: |
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Ian,
We will sort out returning the unmachined gear later and compensate you for the return postal cost. Apologies for the mistake. |
ian mckenzie (Ian160981)
Member
Username: Ian160981
Post Number: 17
Registered: 5-2008
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| Posted on Thursday, September 25, 2008 - 5:59 pm: |
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hi paul, i recieved my order today, so that will be fine if we arrange to send the unmachined one back, no apologies needed mistakes happen,
regards
ian |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 885
Registered: 10-2004
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| Posted on Saturday, September 27, 2008 - 6:42 pm: |
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Hi Ian,
Just to let you know that I bored out your gear today, it ended up being 17.06 but it feels a snug fit on the 17mm silver steel so should be fine. We will get it sent out on Monday.
Regards
Paul |
ian mckenzie (Ian160981)
Member
Username: Ian160981
Post Number: 18
Registered: 5-2008
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| Posted on Saturday, September 27, 2008 - 7:35 pm: |
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hi paul, thanks very much, you've saved my project lol. if you please just debit my card for the labour and give me a return address for the gear i have to send back to you, and i will send it back a.s.a.p. thanks again
regards
ian |
tim linekar
Unregistered guest
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| Posted on Monday, January 19, 2009 - 12:58 pm: |
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Steel Pinion Spur Gear MOD 0.6 30 Tooth
Part No: 4706-030
could you let me have the dimensions of the above
many thanks
tim |
Admin (Admin)
Board Administrator
Username: Admin
Post Number: 955
Registered: 10-2004
|
| Posted on Monday, January 19, 2009 - 6:54 pm: |
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Tim,
Sorry Tim but we do not have that data from the manufacturer and we have not got around to measuring them up ourselves.
Using the formula to find the outside diameter:
OD = (N+2) x MOD so a 30T MOD 0.6 would be 19.2mm. |
Alex J Jackson
Unregistered guest
|
| Posted on Thursday, April 23, 2009 - 10:55 pm: |
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Hi Technobots,
I'm attempting to scratchbuild a walking beam axle for a 1/14th scale Scammell Explorer. The walking beam has 5 gears inside it, and I'm looking for Mod 0.5 or mod 0.6 gears, 5mm bore, 26mm pitch 27mm overall diameter for the 4 drive gears and 4 idler gears, and 5mm bore, 14mm pitch, 15mm overall diameter for the drive axle.
All 5 gears are in a line. See the exploded diagram half way down the page:
http://www.hmvf.co.uk/forumvb/showthread.php?p=75867
It is possible I might use 5 similarly sized gears, all 25mm pitch or thereabouts.
To keep the overall width of the beam down, I'm hoping I can find spur gears around 10mm to 12mm wide, including hub, or perhaps gears which have post/peg style attachment rather than grub screw, perhaps along the lines shown here:
http://www.hpieurope.com/piw.php?lang=en&partNo=86498
I'll also be needing 5mm bore sealed bearings.
I've looked long and hard at your (and many other! websites) but I'm drawing a blank so far. Nothing quite fits.
Any ideas?
Best
Alex
 |
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