Stephenson Marine - The Newage PRM120 Marine Gearbox

Simple Mechanical Operation: Lightweight, Compact & Rugged
	The PRM120 gearbox is designed for use in pleasure craft where a simple lightweight transmission is required.
	The cone clutches for both ahead and astern are mechanically operated and require no adjustment.
	The gearbox is purpose built to operate with standard rotation engines i.e. providing a clockwise rotation of the gearbox input shaft when viewed on input. In forward drive the output shaft rotates opposite to input shaft therefore requiring a right hand propeller.
	The reduction ratios offered are 2.04:1, 2.5:1 and 2.94:1 with a common astern ratio of 2.5:1
	The heavy duty aluminium gearcase is externally ribbed for strength and heat dissipation.
Direction actuation is by a lever with a positive detent positions for Ahead, Neutral, and Astern. It is suitable for use with proprietary remote control operating systems which must be of the single lever dual action type, i.e. MORSE MT3 or SL3 which operates the engine throttle in conjunction with the gearlever.

AHEAD RATIO	PLEASURE		LIGHT COMMERCIAL
AHEAD RATIO	BHP	kW	BHP	kW
2.04:1	1.67	1.25	0.91	0.68
2.50:1	1.34	1.00	0.91	0.68
2.94:1	1.11	0.83	0.77	0.58
Max Input Power	67	50	47	35
Maximum operating speed: 5000 rev/min

Note: These powers are expressed in BHP and kW per 100 rev/min engine operating speed, and are measured at the engine flywheel. Ratings have been established to ensure the long trouble-free life of the gearbox which should not, therefore be used at powers in excess of those shown.

Noss Marina, Bridge Road, Kingswear, Dartmouth, Devon, TQ6 0EA Tel / Fax: +44 (0)1803 833343, Mobile: 07855 255217 VAT Registration No. 737 278 307