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Output power at max efficiency: 1W 12Vdc; 1.5W 24Vdc
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Rpm / Torque diagrams for 12 Vdc gearboxes
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The M80, DC motor can be coupled to W01, W02, W10, W11, W12 and W13 gearboxes, to generate the following range of Fiber DC motor gearboxes:
- G70 ( 80 Ncm)
- G71 (150 Ncm)
- G72 (150 Ncm)
- G73 (250 Ncm)
- G74 (500 Ncm)
- G75 (200 Ncm)
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G70=W01+M80 a 12Vcc (80Ncm)
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G73=W12+M80 a 12Vcc (250Ncm)
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Choosing the réduction ratio
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The reduction ratio must be selected accor-ding to the desired output speed of the gear-box, considering that with DC motors this speed varies linearly in function of the applied
load.
In order to semplify the selection, for each type of motor we provide, in addition to the nominal (no load) speed, the information of the speed at max. efficiency. M80 motor at 12 Vdc:
- no-load speed: 5500 rpm
- max. efficiency speed: 3850 rpm M80 motor at 24 Vdc:
- no-load speed: 6800 rpm
- max. efficiency speed: 5640 rpm Example:
for a desired gearbox output speed of 50 rpm with a 12 Vdc motor, the ratio will be as fol-lows:
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1 2 5 10 20 50 100 200 500
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1 2 5 10 20 50 100 200 500 Speed (rpm)
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G71=W02+M80 a 12Vcc (150Ncm)
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G74=W13+M80 a 12Vcc (500Ncm)
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1 2 5 10 20 50 100 200 500
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1 2 5 10 20 50 100 200 500
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3850 max. efficiency speed at 12 Vdc 50 gearbox output speed 77 reduction ratio
The reduction ratio will be selected among tho-se available ratios (see page 8.49) whose values are closest to the calculated one.
N.B. As the gearbox efficiency names accor-ding to the selected ratio. It is not considered in the above calculations.
Gearbox features and ordering code
see page 8.21 - 8.33
Revolution times
see page 8.49
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G72=W11+M80 a 12Vcc (150Ncm)
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G75=W10+M80 a 12Vcc (200Ncm)
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1 2 5 10 20 50 100 200 500
Speed (rpm)
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12 5 10 20 50 100 200 500
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