Not sure of the best forum for tech notes, but here is some data on the motor and gearbox components.
C5 drive components
Planetary gearbox output drive pulley:
- Diameter ~31mm
- 21 tooth
Axle Drive pulley:
- Diameter ~107mm
- 68 tooth
- One Way Bearing INA HFL 2026
Drive Belt:
- Length = 400mm
- Width = 18mm
- Teeth = 80 tooth
- 5mm Pitch
- Megadyne Isoran 400 RPP5
- Local .au equivalent - 400-T5 80 400.0 from
http://www.naismith.com.au/catalogues/pulleys/metric.pdfFinal ratio = 21/68 = .308 or a 3.23 reduction.
Replacement Aluminium Pulleys from Naismith in Sydney:
- Large = 60 60-T5-16
- Small = 18 18-T5-16F for similar final drive ratio.
Could use 25mm wide pulleys to allow for machining.
Motor Bearing - Both Ends: GMN 6201 - data
http://www.gmnbt.com/deep-groove-bearings-selection-guide.htmPlanetary support bearing x2 (on drive end of motor shaft) GMN 607
Large output shaft bearing 61808
3 x Gearbox planet carrier shafts ~ 8mm