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Gearhead SPG12

Planetary Gearhead

Note) Dimension marked ※ is measured with shaft pushed against gearhead.

SPG12 General specifications

    Gearhead SPG12
1 Housing material Metal  
2 Geartrain material Steal  
3 Recommended max input speed 8000 rpm
4 Operation temperature range -10...+60
5 Backlash at no-load per stage ≦ 1 °
6 Bearings on output shaft Sintered Sleeve bearings  
7 Max shaft radial load(7mm from flange) 4(25) N
8 Max shaft axial load 2 N
9 Max shaft press fit force 30 N
10 Shaft radial play ≦0.03 mm
11 Shaft axial play ≦0.3 mm
12 Max allowable torque (Continuous) 100 mNm
13 Max allowable torque (Intermittent) 200 mNm

Spec Based on stages

                             
  Gear Ratio 3.5 4.8 12 23 58 107 509  
14 Reduction ratio (absolute value) 3.50:1 4.80:1 12.25:1 22.56:1 58.19:1 107.177:1 509.07:1 
15 Number of stage 1 1 2 2 3 3 4 
16 Efficiency 85.0 85.0 72.3 72.3 61.4 61.4 52.2%
17 Direction of rotation = = = = = = =
18 Gearhead length : L1 14.2 14.2 18 18 21.8 21.8 25.7mm
19 Weight 11.6 11.6 14.1 14.1 16.6 16.6 19.1g

Combination with motor

Type Model name 3.5 4.8 12 23 58 107 509
Coreless Motor CMS12-15..P 29.2 29.2 33 33 36.8 36.8 40.7 mm
CMS12-20..P 33.4 33.4 37.2 37.2 41 41 44.9
CMS12-30..P 44.2 44.2 48 48 51.8 51.8 55.7
Brushless Motor BMS12-15..P 20.5 20.5 23.5 23.5 26.5 26.5 29.6 mm
BMS12-21..P 35.2 35.2 39 39 42.8 42.8 46.7

※Example: CMS12-1506 MOTOR + SPG12(3.5) → CMS12-1506P3.5

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