28mm Planetary gearbox

Gearbox Description

Gearbox Description of 28mm Planetary gearbox

Housing 
material
Bearing
 at output
Radial load 
(10mm from flange)
Shaft 
axial load
Shaft press 
fit force,max.
Radial play 
of shaft
Thrust play 
of shaft
Backlash
 at no-load
Metal Sleeve bearings ≤3Kgf ≤2.5Kgf ≤10Kgf ≤0.08mm ≤0.2mm ≤3°
Metal Ball bearings ≤3.5Kgf ≤2.5Kgf ≤10Kgf ≤0.05mm ≤0.2mm ≤3°


Motor Shaft Pinion Specification 

Motor Shaft Pinion Specification
Module No. of teeth Pressure angle Hole diameter Reduction ratio.
0.5 11 20° 2.28 1/5,1/19,1/27,1/71,1/100,1/139,1/264,1/516,1/721
0.5 17 20° 2.28 1/4,1/14,1/51,1/189
0.5 8 20° 2.28 1/35,1/939


Gearbox Specification

Gearbox Specification
Reduction 
ratio
1/4 1/5 1/14 1/19 1/27 1/35 1/51 1/71 1/100 1/139 1/189 1/264 1/516 1/721 1/939
Rated tolerance 
torque (Kg.cm Max.)
2 2 3 3 4 4 6 6 8 8 10 10 10 10 10
Max momentary tolerance
 torque (Kg.cm )
6 6 9 9 12 12 18 18 24 24 30 30 30 30 30
Efficiency 80% 80% 70% 70% 70% 70% 60% 60% 60% 60% 50% 50% 50% 50% 50%
Length
(L-mm)
24.5 24.5 30.9 30.9 30.9 30.9 37.3 37.3 37.3 37.3 43.7 43.7 43.7 43.7 43.7
Weight(g)
Sleeve bearings
71 71 81 81 81 81 94 94 94 94 108 108 108 108 108
Weight(g)
Sleeve bearings
70 70 80 80 80 80 93 93 93 93 107 107 107 107 107


Mechanical Dimensions

                                                                   Mechanical Dimensions


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Full Datasheet

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