When your disc harrow starts making that grinding noise or the discs aren’t cutting straight anymore, it’s usually the bearings giving up. A worn-out disc bearing doesn’t just affect cutting performance—it can damage expensive shafts and create uneven tillage that shows up at planting time. This greaseable disc bearing with its spherical outer race is built to handle the constant flexing and loads that come with field work.
What You’re Getting
- 1-3/4 inch round bore fits standard disc harrow shafts perfectly
- Greaseable design lets you maintain it properly instead of hoping sealed bearings last
- Spherical outer race allows for shaft misalignment and rough field conditions
- 100mm outer diameter provides the bearing surface needed for heavy disc loads
- 1.312 inch inner ring width and .984 inch outer ring width handle side loads from cutting through tough residue
Built for Real Farm Work
This bearing fits disc harrows and tillage equipment that use 1-3/4 inch round shafts. The bearing itself is designed specifically for disc applications, with superior sealing to keep dirt out and grease in. Whether you’re working through corn stalks, cutting heavy sod, or preparing seedbeds in dusty conditions, this bearing handles the punishment.
Made to Last
NTN builds these bearings to withstand the constant hammering and dirt intrusion that destroys lesser components. The spherical outer race design compensates for shaft deflection and housing wear, while the greaseable feature means you can keep fresh lubricant flowing to where it’s needed most.
Good to Know
Installation requires removing the disc gang, so mark your blade spacing before disassembly. When installing, pack the bearing with quality disc bearing grease, not general purpose. Check your shaft for wear grooves while you’re at it—a damaged shaft will quickly kill even the best bearing. A shot of grease every 10-20 hours keeps these running smooth.
