Gearhead SPG12Gearhead Motor

Planetary Gearhead

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

		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

		SPG12-3.5	4.8	12	23	58	107	509
		Gear Ratio
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	25.7	mm
19	Weight	11.6	11.6	14.1	14.1	16.6	16.6	19.1	g

Type	Model name	3.5	4.8	12	23	58	107	509
		Reduction ratio (Motor + gearhead total length)
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
Brushless Motor	BMS12-21..P	35.2	35.2	39	39	42.8	42.8	46.7	mm

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

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Gearhead SPG12

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