Description
When your disc bearing starts making that grinding noise or the gang wobbles as you work the field, it’s time for a replacement. This gang bearing keeps your Case IH disc harrow running smooth and true, so you can focus on getting that seedbed prepared instead of worrying about equipment problems.
What You’re Getting
- Precision 1-3/4 inch round bore with 110mm outer diameter for exact OEM fit
- High-quality NTN construction that handles the heavy loads disc gangs put on bearings
- Greasable design lets you maintain it properly and extend bearing life
- 1.70 inch inner ring width provides the support needed for smooth disc operation
Built for Real Farm Work
This bearing fits Case IH 330, 335VT through 3950, 340, and 345 disc harrows—machines you rely on for primary tillage, seedbed preparation, and working down crop residue. Whether you’re busting up corn stalks or preparing ground for planting, these disc harrows see some of the toughest conditions on the farm.
Made to Last
Disc bearings take a beating from the constant vibration, dirt, and side loads that come with tillage work. This NTN bearing is built specifically for agricultural applications, with heavy-duty construction and quality seals that keep the grease in and the dirt out where it belongs.
Installation Notes
This is a direct replacement for OEM part number 193906A1, so it’ll drop right in without modifications. Pack it with quality disc bearing grease during installation—not just any grease will do for the punishment these bearings take.



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