Hi I have a dead Z drive servo and trying to find a like for like replacement is proving to be difficult .
The pert number etc. is -

3486 - ME 4698 - F
MFG code - 001509 0616
Cust No - 54 - 00102 - 00
Tcont : 18.13 LB-IN Icont6014 AMPS
Vrated : 170 VDC Speed : 6000 RPM

I`m trying to find either a replacement part or an alternative make to this spec to replace one or all three motors.
The reason for the foul up was the top bearing within the motor had no grease in it and hadn`t had since new. Not a hint of lubrication and no residue either. These motors are of Chinese origin and considering they are 7 years old they`ve actually done pretty well considering the lack of lubrication.It`s probably reasonable to assume that the remaining motors are equally deviod of grease so replacemet bearings all round I think. The offending motor has burned out so a replacement is necessary the manufacturer has been bought out in the U.K. and no longer deals with motors . Any help would be greatly appreciated. Thanks in advance.