Compare and contrast between belt and gear drives?
953976
I'm not sure what it is that is to be compared, but here are some things to consider:\n\nBelt drives are very flexible as to drive ratios, since it is easier to make a pulley to any diameter, while gears are available in only a fixed number of pitches and diameters.\n\nBelt drives are more limited in maximum torque, since they depend on the friction between belt and pulley, while gears transimit force directly.\n\nOne of the main advantages of belt drives is the flexibility allowed as to the distance between the driver and driven shafts.  The distance between gears is set by the pitch diameter and does not allow for much variance.  Belt drive shafts can be far apart and allow for more variation in separation.\n\nBelt drives are less expensive for large scale systems.  Large pulleys and long belts are cheaper than large gears.\n\nBelt drives are not practical for very small scale (less than 1-2inch) systems or for shafts that need to be very close together.
378761
400 Hz transformers, motors and generators are always smaller and lighter than their 60 Hz equivalents. The motors and generators use lower-inductance windings and tend to operate at higher rpms and lower torques. However, according to the ref., this weight savings comes at the cost of lower efficiency due to greater wiring inductive loss at higher frequency.
1156327
How many gears do you have?
189249
totaly diferent motor
999196
it might be that the chain isint on the same gear..or the gears that are alinged with each other.....you could try to get some oil libricant at a hardware store...to put on the gears and chain..
250368
Your second hard drive needs to also be an Ultra ATA hard drive (the size can be whatever you need). The hard drive controller installed in your computer will support at least two hard drives, the second one installed is called the "slave" (if you encounter that question in the install instructions). 7200 RPM is standard (the speed that the drive spins) but if you can get something faster for a decent price, that would be a good upgrade. A faster RPM means less time to retrieve data and therefore better performance. If you have a Dell, I would start with their website as the starting point to get some idea of pricing. Also, pretty much every large electronics store has these types of hard drives as they are standard upgrades.
99960
Here in my view are the pros and cons of each:\n\nAdding a custom turbo to the GS: pros: you can select the turbo, it doesn't have to be the stock GSX turbo, but you have a lot of good choices, for example the Mitsubishi TD05-16G or TD05-18G.  Cons: you will need bigger injectors, fuel pump, and engine management. I highly recommend custom dynotuning for safety and performance. Torque-steer: with FWD and additional torque, you will encounter significant torque steer. This shouldn't be a problem if you are aware of it, and drive carefully. You will probably need a new clutch to handle the additional power.\n\nGSX: pros: less torque steer due to AWD. Injectors and pump are already sufficient.  cons: AWD drivetrain will have more driveline loss of horsepower in exchange for better handling.
1183056
it is ok to roll in neutral. but you dont want to leave the clutch dissengaged for long periods of time because it causes extra wear on the clutch. idling on a gear would mean you are in gear and have the clutch pulled in. idling on neutral is just being in neutral.
1170770
Which one.\nThey range from statical scales to efficient, low friction machines.
1036190
If your refering to using a larger drive than needed for the application. Then I would say only limited by your cost and if the drive can be adjusted to the motor/load you are trying to use.
181123
Here's an article on warp drive\n\nhttp://en.wikipedia.org/wiki/Warp_drive
279840
The extra wear on shift linkage bushings is negligible compared to the increased likelihood of being unable to react quickly to a road hazard. You should aim to have both hands on the wheel unless you're actively changing gear.\n\nThe cost of a new gear linkage in a typical family car would typically be in the $100-300 range. The cost in increased insurance rates when you crash because a deer ran out in front of you and you couldn't react in time would be MUCH more...
357260
A belted conveyor usually has two pulleys, one at each end that slightly stretch the belting to maintain the belt's position and to provide increased friction between the belt and the pulley.  One of the pulleys is driven, usually by a motor, leaving the other pulley as an idler pulley.  The motor rotates the belt around the two pulleys.\n\nBetween the pulleys is usually a smooth, wear resistant surface that the inside of the belt glides across.  This surface supports the belt and whatever may be riding on it, but has a low friction surface so the belt slides easily across it (think of a tablecloth on a table).\n\nSome belts will have a small raised section on the inside of the belt.  This helps improve the belt's tracking across the pulleys.  Without it, the pulleys need to be exactly parallel and belt in in good condition.  Otherwise the belt has a tendency to eventually roll off to one side or the other.
286870
1. manual clutch or centrifugal clutch? probably centrifugal if not climbing hills.\n\n2. ratio spread. How far apart to make the gearing or belts? Too far apart and you'll never make it into second gear. Too close, and you'll not go fast. Lower first if you want to climb hills.\n\nI would suggest a sheave pulley design for continuous ratio - no gears. The sheave is spring loaded so the belt digs down into the pulley halves when high torque occurs. Kind of an automatic transmission. Check www.graingers.com,\nsearch on "sheave".\nHave fun.
418610
It depends on your legs, and what speed you want to maintain.  Level ground is not why you have gears: its for hills, and for bad terrain.
607030
INTRODUCTION TO MOTOR, PULLEY AND BELT\nA motor is a prime mover means it provides power to mechanical system or machines. A motor converts electrical energy into mechanical energy which is transmitted by belt drive to perform some mechanical work. The armature (extension of the rotating part) of a motor is coupled with a shaft by a coupling (coupling is a device which connects two shafts so that if one is rotating, the other also rotates). From this shaft power is transmitted to a distant shaft by belt drive. Separate pulleys are present and keyed (means fixed with shaft so that both shaft and pulley rotate as a whole) to each of the driver and driven shaft and joined by a belt in such a way that if one pulley rotates the other also rotates.\n\nDRIVER AND DRIVEN PULLEY SPEEDS\nLet the driver pulley rotate at 'N1' rpm (revolution per minute) and the driven pulley rotate at 'N2' rpm. If the diameters of the respective pulleys be 'D1' metre and 'D2' metre respectively then we have the relation N1/N2 = D2/D1.\n\nBELT SPEED CALCULATION\nNow, we are in a position to start the belt speed calculation. The surface speed of the driver pulley is given by V1 = pi*D1*N1 metre/minute = pi*D1*N1/60 metre/second. In ideal condition i.e. if no slippage was present then the belt speed would have been equal to the surface speed of the driver pulley i.e. equal to 'V1'. But actually there is aways some slippage between the belt and pulley surface so the speed of the belt is always less than 'V1'. If this slip factor is 's' then the belt speed is (1-s)*V1 \n= pi*D1*N1*(1-s)/60 metre/second.
151244
The belt sander is faster and better, so long as you don't sand against the grain of the wood.  Orbital sanders are slower, and can leave visible swirls or circles because their motion necessarily cuts across the grain.