It’s for a little RC car

Thanks for an excellent point! We put that information in the video. Skip to 2.14 for your answer. Thanks again, SSS.

@@SSSGearsLtd You mean 2:14

Thank you Graeme. Whilst SSS has no current automotive applications, there are historic (now mostly retired) applications in heavy vehicles, including SSS Powerflow (DM shunting locomotive) gearboxes and old London Routemaster buses. The loco examples remain in tact in Sierra Leone National Railway Museum and an operating example at Keighley & Worth Valley Railway (W Yorks, UK). Also, whilst emptying our archives recently (our factory is being expanded), we found that our original chairman, Mr Harold Sinclair, installed an SSS Clutch into the gearbox of his own car (possibly Rover 90). This proved SSS effectiveness to a USA client (gearbox mfr) that a simple "left foot clutch-less" version of the traditional parallel shaft manual gearbox was possible with SSS, which appears to also be your "end goal". We have a letter dated late 1930's, in which Mr Sinclair describes driving "effortlessly" around South London, without using his left foot. It is regrettable that other 1930's global events prevented this application from maturing although we are equally grateful that most SSS applications are more "bespoke" than "mass produced". Regardless, we are always interested in new gear mechanisms and wish you every success with your invention. We also wonder if you could share a layout drawing of your design? Please email it to [email protected] for the attn of SSS Applications Manager. Thanks again, SSS Gears Limited.

Yes, you are right - very high torques and high speeds are possible. It is an extremely robust clutch device - can do much more than normal freewheel devices. No bag effect when engaging - they use a very effective dashpot to cushion the movement. Works really well. Obviously a hand model without oil can't show this.

+Jan Savay-Guerraz Jan - Sorry for our late reply. "SSS" stands for "Synchro Self Shifting", because the SSS Clutch function is completely automated and does not require a control system to engage / disengage. Please let me know if you require any further information and thank you for taking time to watch this video of our demonstration model. Kind Regards Nicholas Bellamy Applications Manager SSS Gears Limited

Vignesh, thank you for your kind comments and many apologies for the late reply. If the output drives backwards (with input stationary), then the SSS Clutch engages. If user doesn't want this to happen then SSS Gears can add user controllable "Lock Out" to prevent it engaging, with a special protection mechanism to stop a smash if the operator presses the wrong button at the wrong time. Not really part of your question, but if the output drives forwards (faster than input) then clutch engages, but SSS Gears can also add user controllable "Lock In" if user wants to deliberately back drive something. If the input drives backwards faster than the output then the SSS Clutch also disengages. In general, this input backwards rotation doesn't occur in most drives for which we supply SSS Clutches, however we have additional design features to protect those that do ! Thanks again and further apologies for the late response. Please email via our website if you have any further questions. Nicholas Bellamy, Application Manager, SSS Gears Ltd.

Wow, do you sell these, could i get a link? cheers

How does the automatic engagement and disengagement happen. It is mechanical?

@@jlgoose8078 thanks John for your question and we've sent you an LnkdIn invite. Yes, basic engage / disengage function is fully mechanical and covered here kzbin.info/www/bejne/qIC3ZYJjodytq5o and also here www.sssgears.co.uk/en/how-it-works/ Thanks in advance, SSS Gears / SSS Clutch

If they're pushed together when they're at the same speed then no.