Forum sponsored by:

Spur gears

Screw cutting clutch

Search for: in Thread Title in

ALAN HOLLEY	11/11/2017 10:36:34
2 forum posts 2 photos	Having read the article in November issue on the screw cutting clutch I found that a similar unit for a BH600B lathe has been made by Graham Howe, who was kind enough to send me details. My problem is that the gears used are 1.5MOD and my gear cutter is for 16DP(imperial). Could I use the cutter to produce the 25t & 30t gears without changing the centre distance?
Hopper	11/11/2017 11:30:04
7881 forum posts 397 photos	It's very close. Within about 10 thou of same tooth depth. You would have to run the figures through one of the online gear calculators (or do the math the old fashioned way) to get the exact pitch circle diameters and compare them. I should think the 16DP is close enough that you could do the calculations and work out the exact tooth depth to give the exact same PCDs as the Mod 1.5 and therefore the same centre distance. It would not be quite kosher but should work OK for such a low-speed low power application.
Emgee	11/11/2017 12:24:23
2610 forum posts 312 photos	Hi Alan Using the correct blank size and cutting depth for both gears I believe the centre distance between gears is 2.40mm greater for the 16DP gear set, So as Hopper says some juggling will be required to determine blank OD and depth of cut that mesh OK at the smaller gear centre distance. Emgee typo Edited By Emgee on 11/11/2017 12:51:52

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

You can unsubscribe at anytime. View our privacy policy at www.mortons.co.uk/privacy

Latest Forum Posts

hemingway ball turner
04/07/2025 14:40:26
*Oct 2023: FORUM MIGRATION TIMELINE*
05/10/2023 07:57:11
Making ER11 collet chuck
05/10/2023 07:56:24
What did you do today? 2023
05/10/2023 07:25:01
Orrery
05/10/2023 06:00:41
Wera hand-tools
05/10/2023 05:47:07
New member
05/10/2023 04:40:11
Problems with external pot on at1 vfd
05/10/2023 00:06:32
Drain plug
04/10/2023 23:36:17
digi phase converter for 10 machines.....
04/10/2023 23:13:48
More Latest Posts...
View All Topics

Support Our Partners

Shopping Partners

Subscription Offer

Latest "For Sale" Ads

Reeves** - Rebuilt Royal Scot by Martin Evans
by John Broughton
£300.00
BRITANNIA 5" GAUGE James Perrier
by Jon Seabright 1
£2,500.00
Drill Grinder - for restoration
by Nigel Graham 2
£0.00
WARCO WM18 MILLING MACHINE
by Alex Chudley
£1,200.00
MYFORD SUPER 7 LATHE
by Alex Chudley
£2,000.00
More "For Sale" Ads...

Latest "Wanted" Ads

D1-3 backplate
by Michael Horley
Price Not Specified
fixed steady for a Colchester bantam mark1 800
by George Jervis
Price Not Specified
lbsc pansy
by JACK SIDEBOTHAM
Price Not Specified
Pratt Burnerd multifit chuck key.
by Tim Riome
Price Not Specified
BANDSAW BLADE WELDER
by HUGH
Price Not Specified
More "Wanted" Ads...

Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues