Home > Gearboxes >

TB3, Toughbox 3 Stage (am-0977)
TB3, Toughbox 3 Stage (am-0977)
Alternative Views:

Price: $165.00

Stock Status: In Stock

Info Downloads More
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.

Product Overview:
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:

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
Optional 15 tooth 60 tooth 14 tooth 50 tooth 16 tooth* 48 tooth*
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:

Average Customer Review: 4.5 of 5 Total Reviews: 3 Write your own review!

  0 of 0 people found the following review helpful:
Tough box skirt. February 27, 2017
Reviewer: Michael Fiocco from Philadelphia, PA United States  
I have been using the tough boxes for several years.
They work well. Th only thing that I don't like is that, on the newer boxes,the aluminum shroud doesn't go all the way around. This means that dust can get into thr gears.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
February 25, 2013
Reviewer: DALE RYLANDER from DALLAS, TX United States  
really like the 51:1 gear ratio.

Was this review helpful to you?

  1 of 1 people found the following review helpful:
Great Idea October 25, 2011
Reviewer: Nemo from Marion, IA  
This makes tons of sense - now we don't need to use two gearboxes to make use of RS-550 motors.  I am SUPER excited that the 32 DP gears are available separately for custom gearboxes with RS-550 / FP motors, and I know that we will buy some.

Was this review helpful to you?

Browse products in the same categories:

Gearboxes > Single Speed Gearboxes
Browse ALL Products