Thank you for the reply Mike! Well if you mean the centre bit of the fan blade plastic housing then yes the fan blade sleeving are D shaped. The motor shaft is all hard and is not annealed or anything so the lock washer are one of those that are self locking so the star bit that are flexible...
I apologise if this question is unrelated or not meant for this forum but I have a question regarding fan blades secured onto the motor shaft using lock washer …
For a normal 10" air circulator fans the lock washer or any mechanism used to secure fan blade coupling onto the motor shaft are more...
