MTD Lawn Tractor Bearing

This bearing is designed for MTD spindles with specific dimensions. You should measure your current bearing or check your mower's parts manual to confirm it matches the 20mm inner diameter, 47mm outer diameter, and 14mm width of this part.

Mower decks are harsh environments filled with grass clippings, dirt, and moisture. The double-sided seal prevents these contaminants from entering the bearing race, which significantly extends the lifespan of the part and keeps the spindle spinning smoothly.

No, this is a sealed ball bearing, which means it comes pre-lubricated and permanently sealed. You do not need to add grease, and attempting to do so could actually damage the seals.

If you are already taking the time to disassemble the spindle assembly, it is generally recommended to replace all bearings in that specific housing. If one bearing has failed due to wear, the others are likely close behind, and replacing them together saves you from having to repeat the repair process shortly after.

At a minimum, you will need a socket set to remove the spindle assembly, a pair of snap ring pliers to remove the retaining clips, and a bearing press or a soft-faced mallet and a drift punch to carefully tap the old bearing out and seat the new one.