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.
This is a three stage version of our popular Toughbox gearbox. This version gives you more reduction within this standard Toughbox profile.
This is a THREE stage Toughbox, with an much larger overall ratio compared to the standard Toughbox. This third stage uses a 60-tooth, 32 dp gear riding on a 3/8" hex shaft. This gear can be driven by a 15 tooth pinion gear on a CIM Motor, or a 15 tooth pinion gear on a smaller, 500-series motor. The additional stage provides a standard ratio of 51:1. After the additional stage, the same standard Toughbox gears are used within the TB3. This means that some of the optional Toughbox gears can be used within the TB3, so that overall reductions of 43:1, 34:1, and 24:1 can be attained.
This gearbox is designed for having two 500-series motors (aka: Fisher-Price motor), OR one CIM motor inputs.
Note: This gearbox ships as an un-assembled kit of parts.
- Weight: 2.75 pounds (without motor(s))
- Input: One CIM motor OR (one or two Fisher Price motors)
- Output: 1/2" Shaft keyed
- Reduction Ratio: 51:1
- Gear Material: Steel
Gear Ratios Options:
* - These are optional gears and are not included in the standard am-0977 product. In order to attain these gear ratios, these gears will need to be purchased individually.