I bought the 10x10mm size to connect a 425oz stepper motor to my CNC machine. Broke after an hour of use. Might be ok for lower torque motors but be aware it's not very strong. Its diameter is only 18mm versus 25mm for most CNC couplings. That's more for a 3D printer than a CNC machine.
Bearing 608- ZZ1MC3E (8x22x7) NSK//80018
4 Review
π Wheels Manufacturing Ball Retainer Bag: Convenient Storage and Protection for Your Ball Retainers
6 Review
FKG 99502HNR Bearing Width Pre Lubricated
5 Review
Enhanced Performance Sydien SCS12UU Bearing Bushing Diameter for Precision Machinery
4 Review