12. Technical Specifications

12.1. Compass Sensor

Electronic heading sensor built into control box

12.2. Power Requirements

12 Volts DC
0.1 A standby current
~0.75 A average current draw, varies with load and settings
0.05 μA (microamp) current draw when off
~1 A motor draw, no load
~3 - 5 A motor draw, medium loads

12.3. Torque/rpm at Wheel

Maximum 86 ft-lbs (116 Nm) – 12” Wheel Pulley

Up to 6 1⁄4 RPM at the wheel

12.4. Dimensions

Motor Box

7” wide x 5” high x 3 1⁄2” deep
178 mm wide x 127 mm high x 89 mm deep
(Not including drive pulley and mounting bracket)

Control Box

4” wide x 4” high x 2.5” deep 102 mm wide x 102 mm high x 64 mm deep

Wheel Pulley

12 3⁄4” OD, 10 3⁄16” ID, 1 1⁄16” thick 324 mm OD, 259 mm ID, 27 mm thick

Mounting holes are 1⁄4” (6mm) diameter on 5 5⁄8” (143mm) radius

12.5. Weight

10 lbs. (4.5 kg) motor and control box only

16 lbs. (7.25 kg) complete with all parts & brackets

12.6. Materials

Motor box and Control box Units

Powder coated aluminum with anodized face plates
Delrin drive gear on 303 stainless shaft

* Note that each box contains a packet of desiccant crystals/silica gel for moisture control.

Wheel Pulley

Black Urethane with 316 stainless J-bolts or screws

Drive Belt

Fiberglass reinforced neoprene

12.7. Standard Belt Sizes

Distances shown as measured from wheel center to drive pulley center

Belt Number	C-TO-C	C-TO-C
(circumference in mm)	inches	mm
1290	13	330
1350	14 1⁄4	362
1400	15 1⁄4	387
1420	15 3⁄4	400
1455	16 3⁄8	416
1500	17 3⁄8	441
1520	17 7⁄8	454
1575	19	483
1595	19 3⁄8	492
1635	20	508
1690	21 1⁄4	540
1720	21 7⁄8	556
1790	23 1⁄4	591
1800	23 1⁄2	597
1870	24 7⁄8	632
1895	25 3⁄8	645
1945	26 3⁄8	670
2000	27 1⁄2	699
2100	29 1⁄2	749

12.8. Motor Mounting Bracket Dimensions

The motor mounting bracket is 3⁄16” (5 mm) thick with four mounting holes for #10 (5 mm) screws in a 2” square pattern.

12.9. Built for Immersion

The control box and motor box are designed and built to withstand immersion. Storing the unit improperly in standing water or flooded conditions can eventually exceed the rating of the watertight seals.

Designed & built in the USA

Please note that these specifications are subject to change without notice.