This two speed transmission gearbox provides speed and torque when necessary. Eight different gearing ratios and two shaft options are available for this top-of-the-line, robust gearbox. That's 16 different options! This shift-on-the-fly gearbox, uses a dog gear shifting method. Motor input accepts two CIM motors, or two AM Planetary Gearboxes or a combination of either (both not included). Two two shaft options are a round 1/2" 4140 steel shaft with a 1/8" keyway or 1/2" 7075 aluminum hex shaft.

Key Features: 

• The output shaft is centered on the gearbox.
• CIM motor inputs centered on the gearbox.
• The Sonic Shifter is lighter than the AM Shifter and Super Shifter designs.
• Wider variety of gear ratio and shaft options available.
• Will be shipped with an am-3132 encoder pre-installed.

Sonic Shifter Ratio Breakdown:
A color coded graphic accompanied by a ratio breakdown shows which gears are used where and what ratios they form for each sonic shifter. 
Sonic Shifter Ratio Breakdown

Shift Style: 
Two shifting methods are available for the Sonic Shifter. The pneumatic method is much stronger and faster than the servo method. 

• Pneumatic:
  • A pneumatic cylinder, Bimba model 04-0.5-DP, 3/4" bore x 1/2" stroke, (not included) shifts between high and low gear. This cylinder mounts with a5/8-18 nut (not included). This is a strong, fast method of shifting, lasting under 0.5 seconds and pushing with 26 pounds of force (if using 60 psi). This pneumatic shift can be done while a robot is accelerating.
• Servo:
  • A Servo Shifting hardware pack is available (am-2297), but not included with this product.
  • A Hi-Tech Servo, model HS-422HD is included in am-2297, using an actuation fork to shift between the 2 gear settings. This is a slow, weaker method of shifting (compared to pneumatic), taking 1.5-2 seconds and pushing with up to 8.5 pounds of force. A robot driver may need to back off of the throttle to let a servo shift gears while moving.

Motor Input: 

• Sonic Shifters come with needed hardware to mount 2 CIMs
• Designed for 2 (or 1) motor inputs
• Use CIM motors or AM Planetary Gearboxes or a combination of both

Product Usage:
All AndyMark gearboxes require grease for proper operation and long life. We suggest using our red tacky grease, am-2768. We also encourage that the user powers the gearbox continuously for 30 minutes without grease to allow the gear teeth to wear in. While we do design with short run times in mind, this 'run in' period for smooth gearbox operation, is recommended. Once this is completed, thorough grease of the gear teeth periodically to ensure smooth operation.

Thanks to Evan from 2470 and Sean from 2489 for our new gearbox name, the "Sonic Shifter."

All AndyMark gearboxes require grease for proper operation and long life. We suggest using our red tacky grease, am-2768. We also encourage that the user powers the gearbox continuously for 30 minutes without grease to allow the gear teeth to wear in. While we do design with short run times in mind, this 'run in' period for smooth gearbox operation, is recommended. Once this is completed, thoroughly grease the gear teeth periodically to ensure smooth operation.

Product Overview: 
This compact gearbox is designed to provide an overdrive from the motor imput. The output shaft is well secured and has a 1/2" output diameter. This gearbox can be ordered with a 1:1.67 or 1:1.21 ratio. Two different shaft plates are included in this kit, allowing for numerous mounting possabilites. These two different shaft plates can be seen in the product pictures above. This gearbox is shipped un-assembled.

Invidivual Loose Hardware For Both Ratios:

• One - SpinBox Housing (am-2456)
• One - SpinBox Shaft Plate, Flange (am-2457)
• One - SpinBox Shaft Plate, Small (am-2463)
• One - CIMple Box & Spinbox Output Shaft (am-0740)
• One - 1/2" id Flanged, Shielded Ball Bearing (FR8ZZ) (am-0030)
• One - 185x385, nylon, 0.625 od, 0.385 id, 0.185 thick, white (am-2271)
• One - 2mm x 2mm machine key
• One - 1/8x1/8x0700 Machine Key, steel (am-1043)
• Two - #10-32 x 5/8 screws, for motor mounting
• Four - #10-32 x 3/4 screws
• One - 1/4-20 x 1/2 screw
• One - 1/4 washer

1:1.67 Ratio Exclusive Hardware:

• One - 40T 20DP 8mm Round Bore with 2mm Keyway, Steel Gear (am-2458)
• One - 24T 20DP 0.5" Hex Bore, Steel Gear (am-2459)

1:1.21 Ratio Exclusive Hardware:

• One - 35T 20DP 8mm Round Bore with 2mm Keyway, Steel Gear (am-2460)
• One - Gear 29T, 20dp, 500 hex for SpinBox (am-2461)

Motor Input:

• Designed for one CIM motor or AM Planetary Gearbox

Items NOT Included:

• CIM Motor
• Encoder and cable - If you wish to mount an encoder, you will need to use this motor spacer kit.

Weight: 1.87 pounds

This shift-on-the-fly gearbox, uses a dog gear shifting method. Motor input accepts two CIM motors, or two AM Planetary Gearboxes or a combination of either (both not included). The output shaft is a 1/2" 4140 steel shaft with a 1/8" keyway. 

The Super Shifter includes hardware for pneumatic shifting, but the pneumatic cylinder is not included. Pneumatic shifting hardware is installed as standard. Servo shifting hardware is available as an additional hardware package ( am-2442).

Three differences compared to the AM Shifter design: 

• An extra reduction stage is included. This stage allows for direct drive applications of 4", 6" and 8" wheels.
• The output shaft extends from the side of the gearbox, as opposed to being captured within the side plates.
• A 2" wide aluminum box tube is used as a protective spacer, safely enclosing the transmission.

Shift Style: 
Two shifting methods are available for the Super Shifter. The pneumatic method is much stronger and faster than the servo method.

• Pneumatic:
  • A pneumatic cylinder, Bimba model 04-0.5-DP, 3/4" bore x 1/2" stroke, (not included) shifts between high and low gear. This cylinder mounts with a5/8-18 nut (not included). This is a strong, fast method of shifting, lasting under 0.5 seconds and pushing with 26 pounds of force (if using 60 psi). This pneumatic shift can be done while a robot is accelerating.
• Servo:
  • A Servo Shifting hardware pack is available (am-2442), but not included with this product.
  • A Hi-Tech Servo, model HS-322HD is included in am-2442, using an actuation fork to shift between the 2 gear settings. This is a slow, weaker method of shifting (compared to pneumatic), taking 1.5-2 seconds and pushing with up to 8 pounds of force. A robot driver may need to back off of the throttle to let a servo shift gears while moving.

Total Weight: approx. 4.0 lbs., without motors or pneumatic cylinder installed 
 

Product Usage:
All AndyMark gearboxes require grease for proper operation and long life. We suggest using our red tacky grease, am-2768. We also encourage that the user powers the gearbox continuously for 30 minutes without grease to allow the gear teeth to wear in. While we do design with short run times in mind, this 'run in' period for smooth gearbox operation, is recommended. Once this is completed, thoroughly grease the gear teeth periodically to ensure smooth operation.

To purchase individual parts to change ratios on your own, see Optional Parts Sold Separately below. 

Included Hardware: 

• Attached Hardware:
  • Shielded, flanged ball bearings
  • 4140 steel 20 dp gears, w/ 14.5 degree pressure angle
  • 1/4" thick aluminum side plates
  • AM-3132 Encoder
  • 3' Encoder Cable
  • Servo
• Loose Hardware:
  • Two - CIM gears (12 tooth)
  • Two - 5/16" retaining clips
  • Two - 2mm x 2mm machine keys
  • Four - #10-32 screws, for motor mounting
  • One - 1/4-28 screw for servo actuation
  • One - 1/4-28 nut
  • One - 0.33" id plastic spacer (for installation between motor and 12 tooth gear)
  • Six - 5/16" id washer to space out CIM gear (3 for each motor)

Motor Input: 

• Designed for 2 (or 1) motor inputs
• Use CIM motors or AM Planetary Gearboxes or a combination of both

Optional Parts Sold Separately: 

• am-0114 & am-2253 Final Stage: 45:20 gear set
• am-0114 : 35 Tooth Small Output Gear and 28 tooth Medium Cluster Gear
• am-2253 : 28 Tooth Small Output Gear and 35 Tooth Medium Cluster Gear

Optional Super Shifter Output Shafts: 

• Long SS Wheel Shaft (output shaft, sticking out 3.94")
• Long SS Hex Shaft: this is an extended intermediate shaft, used if the final stage is not needed
• Hex SS Wheel Shaft provides a hex output shaft, if a FR8ZZ-Hex bearing is used.
• Hex SS Long Wheel Shaft provides a longer hex output shaft, if a FR8ZZ-Hex bearing is used.

Weight Reduction: 

• An aluminum Hex SS Wheel Shaft can replace the standard steel Wheel Shaft
• Four 2" long spacers can replace the black box extrusion, but this exposes interior gearing.

Common Parts: 
The Super Shifter uses many of the same fabricated parts as the AM Shifters (am-0001 or am-0957) transmissions: CIM gears (12 tooth), Large Cluster Gear,Medium Cluster Gear, Small Output Gear, Large Output Gear, Dog Gear, Cylinder plate, Shifter Shaft, and Shift Block

Upgrade to Sonic Shifter: 
In order to change over a Super Shifter to a Sonic Shifter, these parts need to be purchased:

• One - Sonic Shifter Motor Plate (am-2506)
• One - Sonic Shifter Shaft Plate (am-2507)
• Two - Sonic Shifter Spacer (am-2508)

This shift-on-the-fly gearbox, uses a dog gear shifting method. Motor input accepts two CIM motors, or two AM Planetary Gearboxes or a combination of either (both not included). The output shaft is a 1/2" 4140 steel shaft with a 1/8" keyway. 

The Super Shifter includes hardware for pneumatic shifting, but the pneumatic cylinder is not included. Pneumatic shifting hardware is installed as standard. Servo shifting hardware is available as an additional hardware package ( am-2442).

Three differences compared to the AM Shifter design: 

• An extra reduction stage is included. This stage allows for direct drive applications of 4", 6" and 8" wheels.
• The output shaft extends from the side of the gearbox, as opposed to being captured within the side plates.
• A 2" wide aluminum box tube is used as a protective spacer, safely enclosing the transmission.

Shift Style: 
Two shifting methods are available for the Super Shifter. The pneumatic method is much stronger and faster than the servo method.

• Pneumatic:
  • A pneumatic cylinder, Bimba model 04-0.5-DP, 3/4" bore x 1/2" stroke, (not included) shifts between high and low gear. This cylinder mounts with a5/8-18 nut (not included). This is a strong, fast method of shifting, lasting under 0.5 seconds and pushing with 26 pounds of force (if using 60 psi). This pneumatic shift can be done while a robot is accelerating.
• Servo:
  • A Servo Shifting hardware pack is available (am-2442), but not included with this product.
  • A Hi-Tech Servo, model HS-322HD is included in am-2442, using an actuation fork to shift between the 2 gear settings. This is a slow, weaker method of shifting (compared to pneumatic), taking 1.5-2 seconds and pushing with up to 8 pounds of force. A robot driver may need to back off of the throttle to let a servo shift gears while moving.

Total Weight: approx. 4.0 lbs., without motors or pneumatic cylinder installed 
 

Product Usage:
All AndyMark gearboxes require grease for proper operation and long life. We suggest using our red tacky grease, am-2768. We also encourage that the user powers the gearbox continuously for 30 minutes without grease to allow the gear teeth to wear in. While we do design with short run times in mind, this 'run in' period for smooth gearbox operation, is recommended. Once this is completed, thoroughly grease the gear teeth periodically to ensure smooth operation.

To purchase individual parts to change ratios on your own, see Optional Parts Sold Separately below. 

Included Hardware: 

• Attached Hardware:
  • Shielded, flanged ball bearings
  • 4140 steel 20 dp gears, w/ 14.5 degree pressure angle
  • 1/4" thick aluminum side plates
  • AM-3132 Encoder
  • 3' Encoder Cable
  • Servo
• Loose Hardware:
  • Two - CIM gears (12 tooth)
  • Two - 5/16" retaining clips
  • Two - 2mm x 2mm machine keys
  • Four - #10-32 screws, for motor mounting
  • One - 1/4-28 screw for servo actuation
  • One - 1/4-28 nut
  • One - 0.33" id plastic spacer (for installation between motor and 12 tooth gear)
  • Six - 5/16" id washer to space out CIM gear (3 for each motor)

Motor Input: 

• Designed for 2 (or 1) motor inputs
• Use CIM motors or AM Planetary Gearboxes or a combination of both

Optional Parts Sold Separately: 

• am-0114 & am-2253 Final Stage: 45:20 gear set
• am-0114 : 35 Tooth Small Output Gear and 28 tooth Medium Cluster Gear
• am-2253 : 28 Tooth Small Output Gear and 35 Tooth Medium Cluster Gear

Optional Super Shifter Output Shafts: 

• Long SS Wheel Shaft (output shaft, sticking out 3.94")
• Long SS Hex Shaft: this is an extended intermediate shaft, used if the final stage is not needed
• Hex SS Wheel Shaft provides a hex output shaft, if a FR8ZZ-Hex bearing is used.
• Hex SS Long Wheel Shaft provides a longer hex output shaft, if a FR8ZZ-Hex bearing is used.

Weight Reduction: 

• An aluminum Hex SS Wheel Shaft can replace the standard steel Wheel Shaft
• Four 2" long spacers can replace the black box extrusion, but this exposes interior gearing.

Common Parts: 
The Super Shifter uses many of the same fabricated parts as the AM Shifters (am-0001 or am-0957) transmissions: CIM gears (12 tooth), Large Cluster Gear,Medium Cluster Gear, Small Output Gear, Large Output Gear, Dog Gear, Cylinder plate, Shifter Shaft, and Shift Block

Upgrade to Sonic Shifter: 
In order to change over a Super Shifter to a Sonic Shifter, these parts need to be purchased:

• One - Sonic Shifter Motor Plate (am-2506)
• One - Sonic Shifter Shaft Plate (am-2507)
• Two - Sonic Shifter Spacer (am-2508)

This is AndyMark's newest shifting two-speed transmission, with all the features you already enjoyed on a Sonic Shifter, plus a third motor input. This shift-on-the-fly gearbox, uses a dog gear shifting method. Motor input accepts three CIM motors, three AM Planetary Gearboxes or a combination of either.

Three main differences between this transmission and the Sonic Shifter:

• Super Sonic Shifter can have 3 CIM Motor input.
• Super Sonic Shifter has a larger (50T) gear meshing with the CIM gear (14T).
• Super Sonic Shifter does not have the last stage that the Sonic Shifter (and Super Shifter) does have.

Specification:

• Low Ratio: 11.4:1
• High Ratio: 4.5:1

Key Features: 

• The output shaft is centered on the gearbox.
• Three CIM motor inputs are symmetrically centered on the gearbox.
• The Super Sonic Shifter is the lightest of the AndyMark line of shifters, lighter than the AM Shifter, Super Shifter, and Sonic Shifter
• Will be shipped with an am-3132 encoder pre-installed.

Shift Style: 
Two shifting methods are available for the Super Sonic Shifter. The pneumatic method is much stronger and faster than the servo method. 

• Pneumatic:
  • A pneumatic cylinder, Bimba model 04-0.5-DP, 3/4" bore x 1/2" stroke, (not included) shifts between high and low gear. This cylinder mounts with a5/8-18 nut (not included). This is a strong, fast method of shifting, lasting under 0.5 seconds and pushing with 26 pounds of force (if using 60 psi). This pneumatic shift can be done while a robot is accelerating.
• Servo:
  • A Servo Shifting hardware pack is available (am-2297), but not included with this product.
  • A Hi-Tech Servo, model HS-422HD is included in am-2297, using an actuation fork to shift between the 2 gear settings. This is a slow, weaker method of shifting (compared to pneumatic), taking 1.5-2 seconds and pushing with up to 8.5 pounds of force. A robot driver may need to back off of the throttle to let a servo shift gears while moving.

Motor Input: 

• Super Sonic Shifters come with needed hardware to mount 3 CIM Motors (not included)
• Designed for 3 (or 2 or 1) motor inputs
• Use CIM motors or AM Planetary Gearboxes or a combination of both

Product Usage:
All AndyMark gearboxes require grease for proper operation and long life. We suggest using our red tacky grease, am-2768. We also encourage that the user powers the gearbox continuously for 30 minutes without grease to allow the gear teeth to wear in. While we do design with short run times in mind, this 'run in' period for smooth gearbox operation, is recommended. Once this is completed, thorough grease of the gear teeth periodically to ensure smooth operation.