How to Fix Mower Deck Bearings

What You'll Need
Replacement mower deck bearings
Bearing grease

A mower deck bearing in a lawnmower can be fixed by most do-it-yourselfers. Mower bearings are an inexpensive part, usually costing around $2 to $5, and are part of the deck that allows the blade and mower engine to work. When the bearings lock up or freeze and no longer function properly, they should be replaced to return you lawn mower to its proper working order. This is the best way to fix your lawn mower deck bearing.

You should have available the owner’s manual for the lawnmower that you own. Although this article is a general discussion of mower deck bearings and the approach to fixing or replacing the bearing, additional instructions or guidance needed for this repair may be found in the specific instructions provided by your lawn mower’s manufacturer.

Step 1: Purchase Replacement Mower Deck Bearing

Go to a hardware store or other retailer that sells parts for lawn mowers. Purchase the replacement bearing that matches the manufacturer requirements for the lawn mower that you own. Check your owner’s manual or manufacturer’s website for information relative to the bearing type that is needed for your lawn mower deck.

Be sure to purchase the quantity of bearings needed for the repair. If necessary, purchase a spare bearing that can be kept available in a storage area at your home in case you have to replace the mower deck bearing in the future. Check the bearing against the original equipment manufacturer (OEM) part number and make sure that the number matches that which is required by the manufacturer of the lawn mower that you own.

Step 2: Remove the Old Mower Deck Bearing

Using your owner’s manual as a guide locate the mower deck bearing for your lawn mower. This is important because there are different locations for the bearing and this article cannot be specific enough as to the location of the mower deck bearing for your lawn mower.

Once you locate the bearing on your mower deck, use a ratchet wrench to remove the bearing.

Step 3: Install the Replacement Mower Deck Bearing

In place of the old mower deck that you removed place the new or replacement mower deck in position. Fasten the bearing to the mower deck with the ratchet wrench, making sure that it is secure and in place. If necessary, use bearing grease (if required) on the bearing in accordance with the manufacturer's instructions.

Step 4: Test the Mower

Run the lawn mower to check to see that the installation was done properly and that the mower is working properly. Try starting the mower several times to determine that it is working and this should complete your fix of the mower deck bearing. Dispose of the old mower deck bearing in a manner that is environmentally responsible and safe.