Summary

• Page properties (4 modified, 0 added, 0 removed)

Details

Page properties

Title

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1		-SES - Gearing Information
	1	+SES V2 - External Gears

Parent

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1		-Servo Erector Set (SES) Building System.SES - Parts.WebHome
	1	+Main.WebHome

Tags

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1		-LSS|gearbox|gearing|gear

Content

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1		-The SES V2 system makes use of external gears in order to offset the axis of rotation and add additional support, as well as to increase the output torque. There are currently two sets of gears.
	1	+= Gears =
2	2
3		-= Radio =
4		-
5		-|(% style="width:350px" %)[[image:LSS-Gear-16T-Gearbox.png||width="300"]]|(((
	3	+Edit
6	6	16T driven + 48T idler = 3:1 ratio
7	7
	6	+[[image:LSS-Gear-16T-Gearbox.png||width="300"]]
	7	+
8	8	This has the effect of increasing the torque by a factor of 3x while decreasing the maximum speed and overall angle by a factor of 3x. Therefore a full rotation of the output horn will result in a 120 degree travel of the larger 48 tooth gear. For high torque, high axial or radial loads, use the external gear bracket assembly. Center distance when using these two gears is 1.00 inches.
9		-)))
10		-|(% style="width:350px" %)[[image:LSS-Gear-32T-Gearbox.png||width="300"]]|(((
	9	+
11	11	32T driven + 32T ideler = 1:1 ratio
12	12
	12	+[[image:LSS-Gear-32T-Gearbox.png||width="300"]]
	13	+
13	13	This has no effect on gearing, rpm or overall angle. Having both gears on the LSS creates a second driven axis. A 1:1 configuration can be used with the gear bracket where high axial or radial loads exist. Center distance when using these two gears is 1.00 inches.
14		-)))
15	15
16		-= Specs =
	16	+= External Gear Specs / Drawing =
17	17
	18	+Edit
	19	+{Include image showing what each value represents - use Wikipedia or any other site "Spur gear nomenclature"}
	20	+
	21	+(% style="width:600px" %)
18	18	| |16T Driving|48T Idler|32T Driving|32T Idler
19	19	|Teeth|16|48|32|32
20	20	|Pitch|16| | |
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24	24	|Material|Aluminum|Aluminum|Aluminum|Aluminum
25	25	|Spline|✓|✗|✓|✗
26	26
	31	+
	32	+ 16T Driven 48T Idler 32T Driven 32T Idler
	33	+ Teeth 16 48 32 32
	34	+ Pitch 16
	35	+ Pressure Angle 20 20 20 20
	36	+ Pitch Diameter 1" 1"
	37	+ Outer Diameter 1.06" 1.06"
	38	+ Material Aluminum Aluminum
	39	+ Spline
	40	+
27	27	= Spline =
28	28
	43	+Edit
	44	+
29	29	[[image:LSS-Gear-16T-Splines.png||width="300"]]
30	30
31	31	The spline used on the LSS external gears is a 24 tooth version which is compatible with Hitec components.
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36	36
37	37	= LSS External Gear Mounting Options =
38	38
	55	+Edit
39	39	There are various ways to mount the gears to the servo without using the gear bracket. Below are just some examples showing gears mounted with and without the gearbox bracket. Note that the gearbox bracket can be mounted on multiple sides of the servo. The gearbox bracket is used largely for applications with higher forces (axially and radially) and higher torque.
40	40
41	41	[[image:LSS-Gear-All-Ratios.png||height="211" width="600"]]