Planetary Epicyclic Drives - Type SA

Overview:

The Type SA planetary epicyclic drive from Andantex is the latest generation of Rotomission® technology. This compact differential consists of three elements which are mechanically connected by the sun and planet gears. Combining the motion of the three elements solves many electro-mechanical drive problems.

It employs a compound epicyclic system of gearing to provide high torque capacity and a wide range of reduction ratios in a very compact space. The torque capacity of the Type SA is a direct function of the number of planetary gear assemblies used. Consequently, a maximum range of ratios and capacities are provided from a minimum number of basic sizes and components.

For information on the kinematics of these drives, please click the picture or follow this link.

Applications:

Ratings:

Unit Size	# of Planets	Output Torque (lb.ft.) based on Casing Speed
Unit Size	# of Planets	100 rpm	350 rpm	550 rpm	800 rpm	1,100 rpm	1,500 rpm	1,800 rpm
SA 18	3	22	22	21	21
SA 18	6	44	44	42	42
SA 20	2	72.4	72.4	72.4	72.4	68.8	58	50.6
	3	108.6	108.6	108.6	108.6	103.2	87	75.9
	4	144.8	144.8	144.8	144.8	137.6	116	101.2
	6	181	181	181	181	181	173.9	152
SA 30	2	181	181	163	152.1	137.6	130.4
	3	271.5	271.5	244.5	228.1	206.4	195.6
	4	362	362	326	304.2	275.2	260.8
	6	543	543	489	456.2	412.8	391.2
SA 42	2	507.2	507.2	507.2	471	391.2
	3	760.8	760.8	760.8	706.5	586.9
	4	1,014	1,014	1,014	942	782.4
	6	1,521	1,521	1,521	1,413	1,173
SA 56	2	1,159	1,159	1,159	1,028
	3	1,738	1,738	1,738	1,542
	4	2,318	2,318	2,318	2,056
	6	3,476	3,476	3,476	3,084
SA 75	2	2,753	2,753	2,282
	3	4,129	4,129	3,423
	4	5,506	5,506	4,564
	6	8,258	8,258	6,846
SA 95	2	5,869	5,869	5,869
	3	8,803	8,803	8,803
	4	11,738	11,738	11,738
	6	17,606	17,606	17,606
SA 130	3	13,042	11,955
	4	17,390	15,941
	6	26,084	23,910
	8	34,780	31,882
SA 165	3	18,477	18,477
	4	24,636	24,636
	6	36,954	36,954
	8	49,272	49,272
	10	61,591	61,591
	12	73,908	73,908
SA 240	4	69,561
	6	104,342
	8	139,122
	10	173,904
	12	208,683

* Information provided is subject to change without notice. Units starting with SA have inch bores;
units starting with SR have metric bores.

Standard Ratios:

SA 18 to SA 95

External Ratio K	Internal Ratio p	Running Efficiency (w2 = 0)
2.000*	0.5000	98%
2.72	0.6325	97%
3.83	0.7392	95%
4.70	0.7875	93%
-6.000*	1.1667	90%
-10.500*	1.0952	84%
15.42	0.9351	79%
18.61	0.9462	76%
25.27	0.9605	69%
38.000*	0.9736	60%
-43.33	1.0231	56%
67.85	0.9852	45%
-125.000*	1.0080	31%
260.000*	0.9961	18%

* Exact ratios. Ratios greater than 43.33 are irreversible. Special ratios can be supplied (K=-1).
Information provided is subject to change without notice.

To insure proper selection, please consult the factory. If you have any questions regarding the information provided here or require more information, please call us at (800) 713-6170 or e-mail us. Our Sales and Engineering departments are ready to help you with your specific power transmission needs.

Planetary Epicyclic Drives - Type SA

* Information provided is subject to change without notice. Units starting with SA have inch bores; units starting with SR have metric bores.

* Information provided is subject to change without notice. Units starting with SA have inch bores;
units starting with SR have metric bores.