TB3, Toughbox Gearbox 3 Stage

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.

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 in. 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 9015 motors, OR one CIM motor inputs.

Note: This gearbox ships as an un-assembled kit of parts.

Gear Ratios Options:

Ratio	Standard or Optional	Motor Gear	32dp Lg. Gear	32dp Sm. Gear	Lg. Cluster Gear	Sm. Cluster Gear	Lg. Output Gear
51:1	Standard	15 tooth	60 tooth	14 tooth	50 tooth	14 tooth	50 tooth
42.8:1	Optional	15 tooth	60 tooth	14 tooth	50 tooth	16 tooth*	48 tooth*
33.8:1	Optional	15 tooth	60 tooth	14 tooth	50 tooth	19 tooth*	45 tooth*

* - 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.

Included Hardware:

• One - Motor Plate
• One - Shaft Plate
• One - 50t 20dp Large Output Gear
• Two - 14t 20dp Small Cluster Gears
• One - 50t 20dp Large Cluster Gear
• One - Steel Gear, 15 tooth, 32DP 8mm Bore (am-3482)
• Two - Steel Gear, 15 tooth, 32DP 0.125 in. Bore (am-0040)
• Four - M3x10mm SHCS (used for 550 mounting)
• Four - 10-32 x 5/8 in. SHCS (used for CIM motor mounting)
• One - 60t 32dp Output Gear
• Five - 3/8 in. id flanged Ball Bearings
• One - 1/2 in. id flanged Ball Bearing
• Four - 1/4-20 Nylock Nuts
• Four - 1/4-20 x 2 SHCS
• One - External Klipring for 1/2 in. shaft
• Two - Toughbox Small Hex Shafts
• One - Toughbox Output Shaft
• One - Nylon Spacer
• Two - ToughBox Gearbox Spacer