Wiki source code of SES - Gearing Information
Version 15.5 by Eric Nantel on 2019/01/09 08:19
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15.1 | 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. |
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2.1 | 3 | = Gears = |
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7.1 | 4 | |
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1.1 | 5 | 16T driven + 48T idler = 3:1 ratio |
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7.1 | 7 | [[image:LSS-Gear-16T-Gearbox.png||width="300"]] |
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1.1 | 8 | |
| 9 | 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. | ||
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| 11 | 32T driven + 32T ideler = 1:1 ratio | ||
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10.1 | 13 | [[image:LSS-Gear-32T-Gearbox.png||width="300"]] |
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1.1 | 14 | |
| 15 | 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. | ||
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14.1 | 17 | = External Gear Specs = |
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10.1 | 19 | | |16T Driving|48T Idler|32T Driving|32T Idler |
| 20 | |Teeth|16|48|32|32 | ||
| 21 | |Pitch|16| | | | ||
| 22 | |Pressure Angle|20|20|20|20 | ||
| 23 | |Pitch Diameter| | |1"|1" | ||
| 24 | |Outer Diameter| | |1.06"|1.06" | ||
| 25 | |Material|Aluminum|Aluminum|Aluminum|Aluminum | ||
| 26 | |Spline|✓|✗|✓|✗ | ||
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2.1 | 28 | = Spline = |
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7.1 | 29 | |
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10.1 | 30 | [[image:LSS-Gear-16T-Splines.png||width="300"]] |
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1.1 | 32 | The spline used on the LSS external gears is a 24 tooth version which is compatible with Hitec components. |
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2.1 | 34 | = Gear Bracket Assembly / Mounting & Parts = |
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1.1 | 35 | |
| 36 | Show in images how to assemble the gear bracket with various parts: bearings, shaft, shaft retainer, idler, gear (two options). Include RobotShop Parts #s | ||
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2.1 | 38 | = LSS External Gear Mounting Options = |
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7.1 | 39 | |
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1.1 | 40 | 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. |
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10.1 | 41 | |
| 42 | [[image:LSS-Gear-All-Ratios.png||height="211" width="600"]] |