If thats what you want to replace, then yes, those are the case needle bearings.
You have to remove the blower from the car, tap two already drilled holes, thread in a modified bolt/zert tool thats usually self made, and press them out using pressure from a grease gun.
Most likely this will not solve your problem.
There are two bearings ON the rotor assembly them selfs that wear out, and will cause massive play in the rotors causing them to "knock" together when they run. These will need to be replaced most likely, where you remove the drive and driven gear from the ends of the rotor shafts, press out the rotor shafts with the rotors being careful to keep them in time, and then press out the bearings and seals and press in new and then put it back together again, making sure you keep the rotors in PERFECT time and you should be good to go.
Many cannot rebuild the rotor assembly them selfs, or find ny shop willing to do it so thats why they find a good used set with low miles and install those.
But you can always email or PM Brian and see what he says.![]()
~F~