Motors
Graupner Motors Speed 400
Highly efficient, small motor for medium-sized boats. 1" x 1", 2.3 mm shaft, 3.6-8.4V Specification:
Shaft 2.3mm
Length, excl shaft 1.5"
Case diameter 1"
No load RPM: 16400
GR1794
$11.95
Motor Mount Speed 400 Motor
GR1794-2
$4.95
RACE 400, 6V GEARED MOTOR
3:1 Reduction
No Load RPM: 16400
Total Length: 3 1/4"
Shaft Length: 3/4"
Height:1 1/4"
Width: 1 1/5"
Shaft: 4mm
AER7121-17
$39.95
Direct MFA COMO Drive 500 Size Motor
This high quality motor comes with motor mount, noise suppression compacitors and 1/8 inch (2.3mm) drive shaft
MFA01
$19.95
Robbe Geared Motor
5.5:1 12Volt
4mm Shaft
ROB4083
$49.95
Robbe Geared Motor
3.3:1 6Volt
ROB4107
$44.95
Motor Mount For Robbe Geared Motors
ROB1395
$6.50
Navy Compact Motor
High performance geared drive system for model boats. Simple to install. Set contents: complete with electric motor, propeller shaft, 3.3:1 geared reduction and 45mm propeller(6Volt)
ROB4105
$59.95
MFA 500 Motors with Gear Reduction
This miniature gearbox is of steel and brass construction with brass gears and is mounted on a 1mm think steel bracket. It incorprates a high quality three pole motor with sintered-bronze bearings. The design and construction of the unit make it suitable for a host of model and light industrial applications
6mm Drive Shaft
Three Gearing Options:
MFA16 - 2.5:1 Gearbox
MFA7 - 6:1 Gearbox - 1316rpm @ 6v, 2633 @ 12v
MFA4 - 11:1 Gearbox - 1436 @ 12v
MFA4-7-16
$44.95
Gearing
Speed 600 ECO 7.2V
Operating voltage range 6... 9.6V
No-load RPM 11000
Current drain at max. Efficiency 7.5 A
Length of case. excl shaft 2 1/4
Diameter 1.45"
Shaft Diameter 3.2mm (1/8")
GR3323
$19.95
Motor Mount Speed 600 Motor
GR1153
$5.95
SPEED 700 BB Turbo 12 V
Ballraced motor with internal fan. Suitable for POWER GEAR 2:1 and direct drive.
Specification:
Nominal voltage 12 V
Operating voltage range 7,2 ... 19,2 V
No-load rpm 11600 min–1
No-load current drain 2 A
Current drain at max. efficiency 12,5 A
Current drain when stalled 43 A
Max. efficiency without gearbox 75 %
Length of case, excl. shaft 67 mm
Diameter 44 mm
Free shaft length 14 mm
Shaft diameter 5 mm
Weight 350 g
GR6317
$46.95
Motor Mount for 700 Motor
GR1157-2
$7.95
800 Direct Drive Motor
Top RPM: 5167
Runs on 12 Volts
3 Pole
Maximum amperage draw: 5.28amps
Will efectively propel a 36" deep vee boat with a 2" prop Can also turn props up to 3.5 " @ 2500 RPM
Motor mount included.
Overall Length: 4 1/4"
Can Length: 3"
Can Diameter: 2"
Drive Shaft Diameter: 1/4"
Drive Shaft Length: 1/2"
MFA800
$52.95
High Torque Motor with Belt Drive
For the bulider who likes the larger tugs and merchant ships that require big props and lots of torque. The 800 size motor is matched to a sophisticated toothed belt drive drive rpm reduction system. This unit produces 2460 rpm at 12 volts with 2.1 times increased torque and 2:1:1 speed reduction. Requires 6mm coupler. Comes with assembly and mounting instructions.

MFA960D211
$99.00
johnson motor JOHNSON HC970
JON970
$29.95
JOHNSON HC970 Motor Mount
This professional designed motor mount was specifically manufactured for the Johnson Motor and will provide your motor with a secure position in your hull.
TIL108
$9.95
SPEED 900
Ideal for powering Graupner Z drive.
High torque
12Volt
2 x 3"
6mm Shaft
8 amp current draw at maximum efficiency, 54 amp lock.
GR6373
$59.95
dumas motors DUMAS 6 VOLT OR 12 VOLT MOTOR
5000 rpm no load speed. Includes couplings, rod & bracket.
DUM2004 - 6 Volt
DUM2005 - 12 Volt
DUM2004
$65.95
DUM2005
$65.95
ROBBE MINI GEARED MOTOR
Compact, low-weight precision DC motors with gearbox for special auxiliary functions in model boats, e.g. anchor winches, radars, guns, cranes etc. Extremely low-noise operation due to the maintenancefree, self-lubricating sinter bearings. The motors are supplied with mounting screws and a plastic motor casing for dirt-free and low noise operation.
Available in four ratios. 150 rpm, 50rpm, 26rpm, 16rpm (Best speed for radarhead rotation).
Length: 23.5mm (15/16")
Width: 15mm (9/16")
Shaft: 2mm
ROB4123-4126
$46.95
SPEED
ALL NEW! Ultra Miniature Precision Planetary Motor
-Total Length: 29mm
-Diameter: 8mm
-Drive Shaft Diameter: 1.5mm
-20 RPM
-Perfect for radar head rotation
-High torque, great for anchor winches
-Nylon drive shaft
-Available for immediate shipment
HAR325
$24.95
Miniature Motor Mount
HAR328
$2.25
Noise Suppression Capacitor
Reduce possible static electricity discharge from motors affecting radio transmisson reception.
Package of 3 capacitors with instruction diagram.


HAR4035
$1.25
3 Volt Battery Holder
Comes with switch and positive and negative leads.
HAR326
$4.95
como motors Como Large Geared Motor
1.5-4.5V geared motor has removable gears to produce ratios of 4:1 to 4,096:1.
Size: 2" x 2°" x 1".
COM101
$24.95
Rudder and Motor Mixer Control Unit
Automatically control the relative speed of two motors on your boat to achieve extremely sharp turns. As the rudder stick on the radio transmitter is pushed to a greater degree, the motors will change speed to pull/push the boat. Extreme rudder movement will cause the inboard motor to reverse for a tight turn.Works in both forward and reverse.
This solid state, micro processor works with any radio system and speed controls.
Output connectors provided for the rudder servo and speed controls. Must have 2 speed controls to work.
Includes LED power on indicator lamp.
Case size: 1. x 1.26 .79"


AJK101
$69.00
Voith Schnider and Z Drives
Voith-Schneider Drive Unit
After a lengthy absence, this unique drive is now available in an updated version employing a belt drive. Two servos are used to control the pitch of the five blades. Situated at the hull bottom, the units will push the boat sideways, backward and forward as required. The 12-volt motor speed is constant and no speed control is required.
Blade unit height: 2°"
Blade unit diameter: 3°"Internal mechanism height: 3°"

Set of 5 replacement blades GR2358.1


instruction link
GR2358
$234.95
GR2358-1
$5.95
Z-Drive
This heavy-duty propulsion unit has internal brass gears and is made for maneuvering larger tugs such as the 38" Tito Neri
GR2335
$124.95
Replacement Propeller
Right or Left Hand
GR2335-1-2
$9.95
Replacement Metal Gear Set
GR2335-3
$26.95
GR2335 Diagram z drive diagram
Schottelantrieb
This propulsion unit is a smaller version of the "Z-drive" and can be used in lieu of the Voith Schneider drive for the Parat tug boat. It will accept motors as large as a Speed 600.
GR1761
$125.95
GR1761 Diagram
1761
Copyright Harbor Models 2010