Mandrel Ball Bearing 532110485

Takes about 45 minutes if you just replace bearings and don't remove the spindle housings. The top bearings were in pretty good shape but the bottom (larger) bearings were the ones that were shot.

I removed top nut on spindle and took off the drive pulleys and the washer under it. Replace nut a few turns and tap out the spindle carefully. Remove nut and the spindle should now come out easily.

The 10" extension I used to tap the bottom bearings out of the housing after the spindle is removed. One came out with the spindle the other was tighter in the housing. The top bearings came out easy after the spindle is removed. Replace bearings and use the top nut to pull it back together.

Replace washer and top pulley, replace blade and tighten. Blocking the blade with a piece of wood keeps the spindle from moving while the assembly is tightened. Don't over tighten top nut as it puts too much preload on bearings. Rotate with blade brake released to check. If it's hard to turn, back off top spindle nut and tap to release tension. Retighten snugly and replace deck under tractor and connect all suspension and belt connections.

Replaced the blades and it cuts and sounds like new!

1. Jacked up the rear of the rider mower to access the blades from the underside to remove them
2. Removed belt to one side & remove old mandrel- a little tedious
3. Pressed (could have used a rubber mallet) new bearings into mandrel along new shaft & packed with grease for the bearings
4. Installed the assembled new unit & new pulley on top, put on the one blade to hold to put on the top nut
5. Reinstalled belt around the pulleys.
6. Put new blades on
7. Spent 4 hours mowing
8. Parts & fast shipping were great!

Removed mower deck
Removed blade
Removed pulley and housing assembly
Put bearing and shaft in new housing
Replaced housing assembly
Replaced pulley
Replaced blade
Replaced mower deck

Replaced the bearing with mandrel, worked perfectly, I ama72 year old woman and I was able to fix it myself,,,

Replce all broken components on the spindle

Replaced spindles, bearings, and retaining bolts.

1. Loosened deck drive belt
2. Removed deck pulley cover
3. Removed blade shaft top nut
4. With rubber mallet, drove blade shaft down
5. Pushed new shaft up from below the deck
6. Installed new nut
7. Reinstalled pulley cover and tightened belt

Take of blade. Remove nut on pulley. Take all four bolts off housing on top of deck. Screw in new bolts in new housing to make new threads. Install new housing. Secure all bolts. Install new pulley and blade and it’s done.

Used the part blowup diagram to take apart and put back together again. Took a little bit of trial and error...but not terribly difficult. You will need a retaining ring plier. A cheap pair from harbor freight will be fine.

The online exploded view showed how the assembly came apart and in the end it was a piece of cake. Reassembly was simple and the whole repair took less than 15 minutes.

Completed repair good as new.

Thanks
Bob