Bearing,​​ 1 In.​​ Flushmount 16234B

1. Pulled engine and limb chute
2. Removed Allen bolts from bearings and pulleys
3. Removed belt
4. Unbolted old bearings from frame
5. Remove rotor if free from bearings. If not use wheel or bearing puller to remove. A good time to resharpen blades and repair rotor if needed.
6. Refit new bearings and reassemble.

Good luck it's not easy but doable with the proper tools

Caution: Make sure the clearance between rotor knives and limb chute are close as possible, very hard to see or measure, adjust before setting and tightening allen bolts.

1984 WW Gardner Superhawk,
Used puller and torch heat to remove original 1 inch shaft bearings and upgraded to newer style off Bear Cat, chipper model # 70080 greasable 1 inch flush mount bearings
(Manufacturer: Crary Bear Cat
Product Number: 16234B). Works great!.

The locking collar, the rotor pulley and the bearing itself did not come off easily. The locking collar was the toughest to remove. I tried everything suggested from YouTube videos without success including WD40, Acetic acid to dissolve the "rust bond" between collar and shaft, two types of torches to heat and lost of banging. What does work is using a pipe wrench on the collar in both directions while simultaneously prying up the bearing from behind with a pry bar. It took me three days of failed YouTube attempts and one night of remembering I had pipe wrenches stored somewhere. The 2 foot long cheater bar was important also to give effortless torque. Because this was the bearing next to the motor, the whole job took about 2 hours excluding all the wasted time and effort from other "expert" advice.

Removed dust cover loosened set screw from concentric removed concentric loosened three bolts from bearing housing slid bearing off shaft. Installed new bearing reassembled unit. Started unit and tested. Unit worked perfectly

1- Using a puller, removed the existing bearing, apply WD-40 or penetrating oil to facilitate removal. 2- Once bearing is off the shaft, clean shaft with light Emory cloth then apply a light coating of oil of grease to shaft. 3- Install new bearing and apply grease to bearing assembly. Re-attach shaft guard and presto, job completed and ready for use.