Rek O Kut Imperial 78rpm Idler

[kirt1974]

Can anyone here give me the dimensions of the 78rpm idler wheel for the Rek O Kut Imperial? I've been looking to purchase one but I can't find one, so I'm going to make one myself if I can find the correct measurements.

[Fela Borbone]

Hello!
I dont know if the idlers of the imperial turntable (TR-12h) are the same of my ROK (TR-43h).
I post my measures, if the 45 or 33 are the same,the 78 also should, if not ,maybe are useful for somebody else in the future, so I measure everything:
45 rpm idler- top-31.4 mm/1.23" bottom-67.8mm/2.67"
33,3 rpm idler- top-25.1mm/ 0.99" bottom-73.4mm/2.89"
78 rpm idler- top-38.5mm/1,52" bottom-47.5mm/1.87"
plate (inner measure) 280mm/11"
motor shaft(original 60Hz)- 15.23mm/0.6"
motor shaft(modified for 50Hz)- 17.82mm/0.7"

If the measures in your machine are the same,Bingo! If not, maybe somebody with an Imperial post measures.
In worst case. you can calculate your 78 rpm idler with some maths.
Remember that turntable speed can be fine tuned using the small screws at the sides of the motor control knob
Good luck!

[kirt1974]

Thanks so much for the dimensions. It appears that my 45 & 33 idlers are the same as yours, therefore I'd assume the same for the 78. I'll post my results here soon. Thanks again!