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28mm Planetary gearbox

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Model:
P281
Brand:
I.CH

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°

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Add：3B-B302 LianDo U Valley Guli Technology industry partk, #16 Xinggu Road, Jiangning District, Nanjing, P.R. China

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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

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
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

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