Product Availability: This gearbox is the predecessor to the 3CIM4U. Once parts supplies for this gearbox are exhausted, it will be retired.
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.
This is a version of the popular Toughbox gearbox, but with unique side plates which can accept three (3) motors. These motors can be CIM Motors or other motors attached to the AM Planetary gearbox.
This gearbox is shipped in kit form, not assembled.
Gear Ratios Options (sold separately):
- Gear type: spur gears, 20 dp, 14.5 degree pressure angle
- Gears provided with this part number are 4140 steel, while aluminum gears can be used as lighter replacements.
- Motor Plate and Shaft Plate material: 6061 aluminum
- Output shaft: 1/2 inch diameter, with 1/8" keyway, 4140 steel
- Weight: 2.5 pounds (using 12.75:1 Ratio)
Weight Reduction with Optional Aluminum Gears (sold separately):
Weight Reduction with Optional Parts (sold separately):
An optional Encoder Package can be purchased and added to this Toughbox. If you already have a US Digital Encoder to fit this Toughbox, this Encoder Mount Pad will help you mount the encoder to the Toughbox. A very complete guide for encoder installation and alignment is shown on the Encoder Package page.
Optional Long Output Shaft:
T-Box Long Output Shaft is available, which is 3.5 inches longer than the standard Output Shaft.
Aluminum Hex Output Shafts:
The Toughbox can use a hex aluminum output shaft and a long hex aluminum output shaft, but a FR8ZZ-Hex bearing must be ordered to replace the FR8ZZ bearing supporting the output shaft.