what locks the output gears onto the output shaft


What locks the output gears onto the output shaft?

Output shafts are responsible for transferring power to the driveshafts and the rest of the drivetrain. To make sure these shafts are securely locked onto the gears, they must be locked with a mechanism that ensures the two components stay firmly connected no matter what the conditions.

What Locks Output Gears Onto Output Shafts?

Several mechanisms can be used to lock output gears onto output shafts, including:

  • Lock Washers: Lock washers are rings of metal, usually steel, which have a serrated design that digs into soft components. They have to be tightened down to ensure a secure fit.
  • Keys and Keyways: Keys and keyways are components which are fitted into grooves in the output shafts and gears. The keys securely fit into the grooves, which helps to keep them locked in position.
  • Set Screws: Set screws are small, threaded screws that can be tightened down onto the output shaft and gear once they are in place. This helps to keep them connected and ensure they will not move during operation.
  • Tapered Sleeves: Tapered sleeves are inserted into the output shafts and gears and then tightened down using a nut. This creates a press fit which holds the two components firmly in place.


The output gears must be securely locked onto output shafts, as failure to do so can cause the drivetrain to suffer serious damage. There are various mechanisms available which can be used to ensure a firm connection between the two components.