Disc Bearing with Square Bore for Massey Ferguson 520 and 620 Disc Harrows

Description

When your disc harrow starts making that grinding noise coming from the gang assemblies, it’s usually these bearings crying for help. A failing disc bearing can damage expensive gang shafts and leave you with wobbling discs that won’t cut clean furrows. This Timken replacement gets your MF 520 or 620 back to cutting through tough residue and preparing smooth seedbeds the way it should.

What You’re Getting

• Timken quality construction that handles the punishing loads of disc work
• Square bore design that eliminates the slippage you get with worn keyways
• Greasable bearing lets you maintain proper lubrication for long life
• Spherical outer race design that self-aligns even when shafts aren’t perfectly straight
• 85mm outer diameter with 1.438-inch inner ring width for substantial load capacity

Built for Real Farm Work

This bearing is designed for the stop-and-go operation typical of tillage work, whether you’re running through corn stalks or incorporating cover crops. The Massey Ferguson 520 and 620 disc harrows are workhorses that see everything from breaking up tough sod to finishing seedbeds, and this bearing handles the side loads and impacts that come with that kind of demanding work.

Made to Last

Farm equipment bearings take constant punishment from dirt, moisture, and heavy loads that would destroy ordinary bearings. This Timken replacement uses the same exacting specifications as the original, with precision grinding for smooth operation and materials that stand up to the punishment. The greasable design means you can keep fresh lubrication in the bearing instead of hoping a sealed unit will last.

Installation Notes

This is a direct replacement that installs just like the original bearing. Pack the bearing with quality disc bearing grease, not general purpose, and ensure the side rings are properly seated to protect the bearing seal. While you’ve got the gang apart, check your gang bolts and inspect the shaft for wear or damage that could cause premature bearing failure.