Sure is and it's really easy to do. Takes about 5 minutes and no parts are needed.

Here's the link that descibes it:
http://www.maxxprod.com/pdf/HC-Shaft-Service.pdf

Basically you take out the set screw on the back of the motor. Pull the clip of the front and push the shaft out the back. Put the clip and set screw back in. There are 2 grooves in the shaft for the clip and 2 flat spots for the set screw. Make sure you put the small washer back in between the clip and the bearing when you reverse the motor.