[8mm 36 Teeth]

Steel Gears:
22 teeth - 48mm x 15mm

36 teeth - 38mm x 11mm

Bi-Gears:
24 teeth x 36 teeth

Nylon Gears:
36 teeth - 38mm x 10mm

36 teeth - 38mm x 12mm

36 teeth - 47mm x 14mm

34 teeth - 45mm x 12mm

31 teeth - 38mm x 12mm

30 teeth - 48mm x 15mm

30 teeth - 36mm x 12mm

28 teeth - 38mm x 10mm

28 teeth - 38mm x 12mm

27 teeth - 38mm x 10mm

26 teeth - 42mm x 12mm

25 teeth - 40mm x 12mm

24 teeth - 52mm x 21mm

23 teeth - 38mm x 12mm

22 teeth - 48mm x 15mm

All sizes are measured by ruler, please note there are tolerances on the sizes. Normally OD in tolerance +/-1mm, thickness in tolerance +/-0.3mm, ID in tolerance -0.0/+0.1mm. Please contact us before ordering if you have questioin on the sizes.

big 47.2mm 36 teeth nylon gear with ball bearing inside
Choose Gear Technical Reference :

How to choose the pair rack and pinion
As long as the modulus ( pitch ) the same , spur gears, internal gears, rack can fit.
For example, 0.8 analog gear rack module with 0.8 ; 1.0 1.0 module with analog gear rack ; 2.0 2.0 module with analog gear rack ; and so on ......
About reduction ratio
Such as the ratio of 1: 1 , optional 20 tooth gear ratio 20 , 34 34 tooth gear ratio and so on ;
Such as the ratio of 1: 2 , optional 20 tooth gear ratio 40 ; 30 60 tooth gear ratio ; 50 100 tooth gear ratios etc ;
Such as the ratio of 1: 6 , 60 tooth gear ratio Optional 10 ; 12 72 tooth gear ratio ; 20 120 tooth gear ratios etc ;
And so on ......
About gear center distance
Formula: center distance = ( big + pinion gear teeth ) * modulus / 2 ;
As is known, two -axis center distance is 30mm, 1.0 modulus selected gear ;
To choose the ratio of 1 : 1 gear , the formula 30 = ( 30 + 30 tooth gear ) * 1.0 / 2, that the election two gears to a mold 30 ;
To choose the ratio of 1: