Part No. 960D211 (with 719RE 800 motor)
Part No. 965D211 (with 719RE 850 motor)
Part No. 966D2.11 (withour motor)

Items Supplied:
1 Motor (not supplied if part no. 966D2.11)
1 Mounting Bracket
2 Ball race blocks
1 6mm ouput shaft
1 Large and small pulley
1 Toothed belt
2 6mm Collars
4 M3 x 20 screws and nuts
4 M5 x 6 screws
4 M3 x 3 sicket set screws1 M3 allen key

Description:2.1:1 belt drive reduction unit. Increases the torque of the motor by approx. 2.1 times and the r.p.m. by the same amount. Ideal for driving a large propeller in large tug type boats.

1. Mount the two ball race blocks to the underside of the bracket with the four M3 x 20 screws and nuts (note: the ball races face outwards. Do not tighten yet.

2. Slide the shaft through the races (note the ground flat nearest the end of the shaft is the drive take off - see illustration). At the same time add the inner of the two 6mm collars. Tighten up the four M3 x 20 screws and secure nuts with nutlock. Add the second collar to the outside of the ball race housing - insert their M3 socket set screws but do not tighten yet.

3. Fit the motor to the bracket using the four M5 x 6 screws.

4. Hook the toothed belt onto the large and small pulleys and fit them to the motor shaft and output shaft. Retain with the M3 socket set screws. Note: For added security and to prevent possible slippage, a small flat can be filed onto the motor shaft where the screw seats. Line up the small and large pulleys using the two collars to adjust the position of the output shaft.

5. For mounting the complete unit, use the four 3mm diameter holes in the bracket. Use screws, nuts and washers (not supplied) for this purpose, rather than wood screws.

6. Note: For model marine applications,make sure the propeller thrust is taken on the front of the propeller rather than being transferred to the drive reduction unit.