This was rendered in LightWave, my prop/rotor blur method is probably the the wrong way to do it LOL I'm by no means an expert, but it works for my stills.
1) Assuming you are working in Frame 0 move the slider to frame 1
2) Select the prop object and rotate/spin the prop a little to the right
3) Now click CREATE KEY This will bring up the motion key panel Ensuring that you still have the Prop object selected choose "For current item and Descendent" from the Key panel drop down box. Again on the MOTION KEY panel uncheck all the position and scale axis. This tells Lightwave that the only motion it's interested in this frame is the rotation of the prop and prop descendants
4) Move back to frame 0
5)Open the CAMERA PROPERTIES and select the MOTION EFFECTS Set Motion blur to photoreal and I would drop the BLUR LENGTH down a little from 50% and hit F9
You'll probably have to play with the Shutter efficiency, Blur percentage etc to get a nice looking blur.