STEPPERONLINE NEMA 23 Stepper Motor (Geared Stepper Motor) Alloy Steel Mounting Bracket ST-M2

This is a very strong mounting bracket. I mounted a  Nema 23 Bipolar Stepper Motor 2.8A 1.9Nm  and put excessive load on it to the point that it would barely lift it. This mounting bracket does not bent or flex at all and I can count on it. It is easy to align because of the long slots for mounting it and the screw holes match the ones on NEMA 23 motors perfectly. Even better, it had screw holes that can work for geared motors.A single drawback is that the lower screws will give you hard time to put nuts on them. In my case, I had no space limitations so I put the nuts on the outside. To put the nuts on the inside, you will either need needle nose pliers or a nut driver. Nevertheless, the price is right and I highly recommend it if you are going to push your motor to its limits. Nema 23 Bipolar Stepper Motor 2.8A 1.9Nm

This NEMA 23 mount worked great. Dimensions are accurate. The motor fit perfect. Mount is sturdy. Nice black finish. Works perfectly!

They are decent quality metal. Holes line up alright.My biggest complain is the poorly positioned holes to mount the bracket to the plate.One way you mount the motor on top of where the screws should be. If you go the other way then the rod and ball screw slides are in the way as well due to the mounting plate for the rod (needs to be near end).Why didn't they make the bracket mounts a little wider so you can tighten them down off to the sides?

Very heavy duty.The reinforcement brackets are great but they obstruct the bottom screws.

The metal is thick enough to not feel flimsy or flex when leaned on, but the brackets are not square. The motor shaft will not be parallel to the mounting surface. Close enough for the price. Also, Nema 24 motors would not fit in the brackets I received. Nema 23 fit just fine.