| PICTURE PAGES ETC Prototype tipper Pics Vee Tipper Pictures Upcoming Products Customer Gallery LINKS Downloads |
| ONLINE ARTICLES A Modeller's Toolkit Etching For Beginners Whitemetal Casting for Beginners - Theory Whitemetal Casting for Beginners - Practice Resin Casting for Beginners - The Sequel |
| This product range comprises turned brass pulleys or sheave wheels and specially made Chloroprene rubber (CR) drive belts. The belts are square in cross section and are closely related to those found in mini voice recorders of the tape variety and many other small mechisms in audio and video machines. They will not take on a 'set' (like rubber bands do) if left stretched permanently for many years so long as the stretch no more than 10%. At present I have 5.5mm, 6.5mm, 7.5mm, 10mm & 12mm ID belts which can be used to make up an over 3.5:1 reduction when used with a 1.1mm or 1.2mm root pulley and a 5mm root pulley. The full range of available pulley root dimension is 1.1mm, 1.2mm, 1.7mm, 3mm & 5mm. The pulleys' grooves are Vee shaped and the 'root' is the minimum radius at the bottom of the Vee. The pulley OD is generally 1mm larger so for example the 5mm root pulley is only 6mm OD and the overall volume taken up by two pulleys and a belt is smaller than for spur gears or the reduction better. The 1.1mm root pulley is supplied with a 0.8mm centre hole to match my micro motors and the 1.2mm with a 1mm centre hole for my mini motor. The other pulleys have 1.5mm diameter centre hole to match standard shafting, wheelsets and larger motors like the Mashima range. All five sizes of pulley and five sizes of belt are currently available in my online shop |
| US Dollar/Euro pricing option:- |
Postage (P&P) Rates for any quantity:- Within the UK - £1.50 Anywhere outside the UK - £3 Payment by cheque on a UK Bank or UK postal orders payable to N. Lawton or ONLINE SHOP please. |
| Drive Components |
 |
| Email Contact:- NigelLawton009@Yahoo.com |
 |
|
| By mail order or online from: Nigel Lawton 77 Katherine Way Seaford East Sussex BN25 2XF United Kingdom Email NigelLawton009@Yahoo.com |
| Shipping & Handling Rates for any quantity anywhere outside the UK:- Option 1 Payment by US Dollar or Euro bills or online - US $6 or €5 S&H. Option2 Payment by checks on USA based banks in $ and European banks in € or Wells Fargo international money orders in US $ payable to N. Lawton - US $16 or €13 S&H. (Please note the additional handling charge of $10/€8 is to cover the £5 bank charge which is incurred when cashing non-UK £ checks or Wells Fargo money orders). |
|
|
|
|
 |
| Sub-miniature belt drive - Pulleys & Belts |
 |
 |
 |
 |
| Pulley Spacing Please use either of the links below to view tables of pulley size, reduction ratio and pulley centre/axle spacing. Click here for a spreadsheet based belt length calculator Click here for non-functioning PDF version Note that the reduction ratios in these files are adjusted for the average effective drive diameter of the pulleys whilst driving the 0.6mm cross-section belt. This results in a reasonably close reflection of the actual reduction achieved. |
 |
 |
| 1.1mm root pulley |
| 5.5mm ID drive belt |
| 3mm root pulley |
| 6.5mm ID drive belt |
| 5mm root pulley |
| 7.5mm ID drive belt |
| Friction Drive Click here for a friction drive application note |
 |
| 7mm OD friction wheel |
 |
| 1.2mm root pulley |
 |
| 1.7mm root pulley |
 |
| 10mm ID drive belt |
 |
| 12mm ID drive belt |