8mm_sprocketsWe are always happy to help sort out gear ratios for our customers but if you know roughly what speed you want to go at, what diameter the tread on your loco is and what speed the motor is please feel free to use our gear ratio program to help select what gears you require.
Gear ratio program
Teeth
 Price O/dia* Teeth
 PriceO/dia*
 8 £2.62 28 25 £6.47 71
 9 £2.72 30 26 £6.55 74
 10 £2.81 33 27 £6.63 77
 11 £3.00 36 28 £6.72 79
 12 £3.09 38 29 £6.99 82
 13 £4.48 41 30 £7.09 84
 14 £4.71 43 31 £8.14 87
 15 £4.88 46 32 £8.25 89
 16 £5.08 49 33 £8.92 92
 17 £5.47 51 34 £9.20 94
 18 £5.70 54 35 £9.91 97
 19 £5.81 56 36 £10.25 99
 20 £5.95
 59 37 £10.28 102
 21 £6.18 61 38 £10.77 105
 22 £6.18 64 39 £13.86 107
 23 £6.28 66 40 £13.49 110
 24 £6.39 69 45 £23.72 123

*O/dia is in mm with the chain around the sprocket.
All pilot bored, maximum of 12mm.
All simplex with boss.
We can get duplex, triplex and plate wheels.
8mm



Chain £10.46 per 1 M
Chain is sold in 1/2M lengths, minimum length of 1/2M maximum continuous length of 5M

Con link £1.12

1/2 Con link £1.52

All prices include 20% VAT
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