How do I know what size clock key I need?
On the back of your clock is the winding arbor (the steel shaft the key fits on to). With your digital gauge, measure the square shaft from flat side to flat side to get the millimeter size. Most winding arbors taper out towards the the clock and the end section is most likely the smallest.
What do clock keys do?
This controls the timing of the clock and turning it to fast or advance makes time faster and the opposite for slow. An ideal double end key fits both the winding arbor to wind the clock and also fits the smaller time regulator aspect.
How big are the keys on a clock?
The Clock key size chart has all of the sizes listed however sometimes certain key sizes are known. Generally speaking, almost all post 1960 mechanical clocks, made in Germany take a size #8 key or crank, unless the movement is round. Ordinarily the round ones take a number 4. The American time strike antique units mostly take the size 7 key.
How big of a key do I need for a 30 hour ogee clock?
Insert the crank into the arbour and s.l.o.w.l.y wind the weights up to the top of the clock so that they are still fully visible. 30-hour weight-driven Ogee clocks require a #4, #5 or #6 crank key. Some clock keys will also have a number stamped on them indicating their size.
How many keys are in a German Clock crank?
German made post WW2 movements that are square or rectangle will take a number 8 keys or crank. If the clock movement is round and made in Germany the key size is number 4. Some round ones are supposed to take a number 3 but if getting 4 it will still fit and wind the clock either way.
How big is a Seth Thomas clock key?
Clock key snaps in place. 9mm (.355”) wide x 15mm (.590”) tall with a 3.5mm (.138”) predrilled hole at the bottom to screw into your clock case. Regularly $1.50/pack. While supplies last. Description: From purchase of a large closeout lot. Fits many Seth Thomas weight movements and case locks.
The Clock key size chart has all of the sizes listed however sometimes certain key sizes are known. Generally speaking, almost all post 1960 mechanical clocks, made in Germany take a size #8 key or crank, unless the movement is round. Ordinarily the round ones take a number 4. The American time strike antique units mostly take the size 7 key.
Insert the crank into the arbour and s.l.o.w.l.y wind the weights up to the top of the clock so that they are still fully visible. 30-hour weight-driven Ogee clocks require a #4, #5 or #6 crank key. Some clock keys will also have a number stamped on them indicating their size.
German made post WW2 movements that are square or rectangle will take a number 8 keys or crank. If the clock movement is round and made in Germany the key size is number 4. Some round ones are supposed to take a number 3 but if getting 4 it will still fit and wind the clock either way.
Is the winding Arbour on a clock the same size?
With the exception of the smaller regulating arbour found on some clock faces all winding arbours or winding points on the clock face are the same size and one key will fit them all. Clock keys often go missing in the life of a clock and the key you get when you buy a clock is likely a replacement and it usually fits well.
