tell me the use of engine crank shaft?
371832
The crank shaft is what connects the pistons together with the transmission to change reciprocating motion (up and down) into rotating motion (turning.  This process is necessary to turn your wheels so you can get to work.
1153826
http://pages.motors.ebay.com/howto/selling.html
1159777
There are several ways to attach a gear to a motor output shaft.\n\nIt mostly depends on your motor shaft and the amount of torque your motor can produce, and the type of gearing you are using (worm gear, planetary, sprocket).\n\nIf the shaft is even all the way across (usually the case with small motors such as those used for model train sets, etc) most of the gears are just pressed on and are usually plastic.  If not much torque is needed or used you could press the gear on, rough up the outside of the motor shaft and simply apply some high strength glue.\n\nIf the motor shaft is tapered then the mating gear must also be tapered and these are most likely pressed fit or heat fitted.  Heat fitting usually has one of the best and tightest fits.  This is how larger steel train wheels are mounted to the shafts. \n\nSometimes the motor has a tapered shaft and a threaded end.  If this is the case then a nut is used to apply torque to the gear which holds it in place on the tapered shaft.  It is also common that the taper has "teeth" which will bite into the softer material of the gear.\n\nIf the shaft of the motor looks like a D then you gear either needs to have key that holds it to the shaft or must have the D cutout in the gear also.\n\nIf the shaft has a groove cut in the top of it then your gear must also have a groove cut into it, and a square key is used to hold the gear to the motor output shaft.\n\nSometimes the shafts are special keyed to match special keyed gears.  In this case its very hard not to use the gears that were meant to go on it.  Such would be the case if your output shaft itself looks like a toothed long gear.\n\nAll and all its probably best to find a kit that comes with a motor that will suit your needs and a bunch of interchangeable gears.  Try the below site.\nhttp://www.robotstorehk.com/motors/motors.html\n\nHope this helps some.
892108
Its a mechanical device basically used for turning ,tapering of metal,wooden jobs.It can also be used for threading ,offset turning ,boring and drilling of jobs.
96754
Im not really clear what you mean by settings but the best physical part swap for acceleration in ring and pinion swap to lower the final drive ratio which means the engine revs faster hope i could help
1056101
Since it's a 2-stroke it actually lubricates the motor from the oil you mix in your gas. The oil your looking for is for the crankcase or transmission. Use a 80 to 90 wieght trans oil. Here is a link of what I used to run in my bike.\nhttp://www.denniskirk.com/jsp/product_catalog/Product.jsp?skuId=&store=Main&catId=120&productId=p30220&leafCatId=12004&mmyId=#altImages
291651
go to marine engine dot com and you can order a manual for your specific model number they will even tell you where to find the model number.
478080
Is this for an electric motor or an engine? \n\nNEMA National Electrical Manufaturers Association) has a standard set of starters for electric motors. Try a web search, I bet you will find what you want if you are talking about an electric motor.
53877
car, windmill, bicycle, propeller, anything with gears, hope this helps
39411
Crank shaft with a bigger throw and shorter conecting rods.
81119
Go tall it not only gives you more low end torque but adds horses in the entire power band. Not to mention if you get one thats ported it helps atomize the air/fuel mixture giving you better efficiency and power.
134486
a 383 is a stroked 350....a stroked engine makes alot more torque there for needing to change gears less you can pretty much run the same gear around the whole track
305373
Assuming you are at the track.  Pull into the waterbox rev the engine to 2500-3000 rpm.  Dump the clutch and floor it.  Be prepared to spend $ on repairs...
653864
Check out this site:\n\nhttp://www.tradekey.com/kb-diesel/
217585
nothing before use but after u need to clean it and flush the motor with fresh water to prevent corrosion
112087
Perhaps you are familiar with a gear that has teeth on the outside and an internal gear that has teeth on the inside.  A spline can be used to transmit power from one shaft to another because the internal teeth of one shaft mate with the external teeth of the other.  The joint permits a limited amount of slack preventing unwanted side and linear forces to be transmitted while causing rotation of the second shaft.  This would be one way to couple a pump to a motor which are manufactured by separate companies.
242192
To answer this question you must first understand what drive is. Drive gear as a standard had a 1:1 ratio meaning that for each 1 revolution of the engine the output shaft of the transmission turned 1 time. Overdrive, most ratios end up at about .7:1 or for each 3/4 rpm the output shaft of the transmission would turn 1 turn. What this means is that engine RPM(revolutions per minute) would drop further allowing car to consume less fuel for the distance covered. As far as when you should use it it depends on the car, engine size, and load conditions. Most newer cars you can leave in overdrive(automatics) all of the time and they will take care of themselves. If you are towing and you may want to run in regular drive instead of overdrive to prevent the constant shifting in and out of overdrive but this is something that you will develop a feel for. I hope that this helps.Just remember Overdrive is there to reduce engine speed, save fuel, and extend engine life