I finally got a used Tanshing VRNC-210 rotary table here in the shop hoping to use it on my 2006 RH-19 with Cent7. During initial inspection, I found the Fanuc servo motor has a tapered shaft with a gear on the end of it. Finding info on Tanshing is not so easy. Not sure I can find a Yaskawa with a tapered shaft to easily replace the Fanuc. The nose of the motor is inside the gear oil part of the rotary table housing casting and has an oil seal.

Does anyone know if I could use the Fanuc motor that came with this and find a servo drive that will play nice with my Cent7?

Another option would be to pull a Yaskawa apart and machine a taper on the shaft and install a heavy duty oil seal.

Last option would be to cannibalize the Fanuc and use it as a jackshaft with a timing pulley on the encoder end running a belt to a Yaskawa with a timing pulley.

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