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Online Catalogue  >  Running Gear and Couplings  >  Safety Couplings

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Safety Couplings

These inexpensive SAFETY couplings are designed to protect the proppeller, motor, speed controller of model boats. Simple in design and even simpler to install, the SAFETY coupling has in-built Shear Pins, that, in the event of the propeller becoming fouled, the pins will snap, thus allowing the motor to run free without the fear of over-load to the electrics and / or electronics.

Pondside replacement of the shear-pin is both simple and cheap.

Mini Safety Coupling Mini Safety Coupling

For prop-shafts upto 5mm and a motor shaft of up to 4mm
Available in threaded or plain bore.

Please use 'drop-down' boxes. 



Price:   £5.49


Shaft / Thread Size

Motor Shaft Size



Standard Safety Coupling Standard Safety Coupling

For prop-shafts upto 5mm and a motor shaft of up to 6.5mm
Available in threaded or plain bore.

Please use 'drop-down' boxes. 



Price:   £5.49


Shaft / Thread Size

Motor Shaft Size



Large Safety Coupling Large Safety Coupling

For prop-shafts upto 8mm and a motor shaft of up to 8mm
Available in threaded or plain bore.

Please use 'drop-down' boxes.

Any larger type couplings made to order.... Please phone for details 



Price:   £5.49


Shaft / Thread Size

Motor Shaft Size



Mobile Marine Models reserve the right to change prices &/or alter specifications without prior notice.

Mobile Marine Models, The Boat Shed, Highcliffe Park, Ingham Cliff, Lincoln LN1 2YQ; tel: 01522 730731
Online Catalogue  >  Running Gear and Couplings  >  Safety Couplings