Drive Units:

General information:

The drive units shown below are used to lower propeller r.p.m. and reduce torque on the electric motor. When the torque, or load is reduced on the motor in your model, running time will be improved. An additional benefit to using a reduction drive is a more realistic speed for your model. These drive units are designed to use the most commonly available electric motors, namely the "380", "540", "550" series motors manufactured by companies like Mitsubishi and Johnson. The larger drive unit can also be used with the industry standard Dumas/Pittman motor as well.

   

Prices:

540/DUMAS Drive unit (revision 2):

Now includes a 4" SBS-2 shaft seal, no more shaft misalignment. Available in the following ratios: 3.0:1, 3.6:1, 4.0:1 and 4.8:1

$65.00

380 Drive unit available in the following ratios: 3.6:1, 4.0:1 and 4.8:1

$65.00

   

Dual Shaft 3:1 Gear Box

Dual shaft gear box for models with twin screws. 3:1 reduction, small and compact. Made to order.

 

$70.00

 
   
   
 ADS Drive System

This compact drive system incorporating a small (385 size), efficient, 5 pole armature motor with a 2 1/2 to 1 toothed belt reduction is the ideal motivating power for smaller boats. The long shaft housing allows addition of watertight seal similar to the SSS Seal outside the pressure hull. 

 $36.50

 

 
   

Drive Reduction Unit

Accepts most '500' series and Dumas/Pittman motors. Machined Aluminum body, bronze bushings, pinion, drive pulley , timing belt and 3/16" stainless steel shaft.

Requires a suitable motor mount. Available on the motor mount page. Motor not included.

Available in the following 6 ratios: 6:1, 5:1, 4.8:1, 4:1, 3:1 and 2.5:1. (subject to availability.)

 

 $75.00

 
   

 

 

Dumas Adapt-A-Drive

This gear set is the simple solution to a complex problem; driving two shafts from a single motor. These gear boxes come in 1.5 and 2 to 1 ratios. Ideal for cramped hulls and for placement in the "wet" portion of the hull, between the WTC and drive shafts.

 

 Price:

$30.00

1.5:1  ratio

 

$32.00

2.0:1  ratio

 

* Prices and availability subject to change without notice.

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