| Tractors and drive axles | Tapered roller bearing | Tapered rollers run between an inner cone and an outer cup, supporting combined radial and axial loads. | High radial load with axial load from gears and wheels | Oil or heavy grease, protected by housings and seals | Correct preload, alignment, and contamination control |
| Disc harrows and tillage shafts | Agricultural disc-harrow bearing | Rolling elements reduce friction while the bearing housing supports the rotating disc shaft. | Heavy radial load, shock, and vibration | Dust seals, flingers, labyrinth features, and grease lubrication | Resistance to soil, dust, impact, and occasional moisture |
| Planter seed-metering units | Deep-groove ball bearing | Hardened balls roll in raceways to allow smooth, accurate rotation of metering components. | Moderate radial load and continuous rotation | Sealed-for-life or shielded construction | Low friction, consistent speed, and protection from seed dust |
| Combine harvester threshing and separating systems | Self-aligning ball or spherical roller bearing | The internal spherical design accommodates limited shaft misalignment while carrying rotating loads. | High radial load, vibration, and possible shaft deflection | Heavy-duty seals and grease lubrication | Misalignment tolerance, heat control, and reliable sealing |
| Baler pickup and feeding assemblies | Mounted insert bearing | A bearing insert is secured inside a housing and supports the shaft without requiring a separate bearing seat. | Radial load with intermittent shock | Rubber or metal seals with relubrication provision | Simple replacement, secure shaft locking, and debris exclusion |
| Mower and rotary cutter gearboxes | Ball bearing or tapered roller bearing | The rolling elements support gearbox shafts and maintain controlled clearance as torque is transmitted. | Radial load, axial load, and high rotational speed | Gear oil or grease inside a sealed gearbox | Correct internal clearance, lubrication level, and temperature control |
| Irrigation pumps and water-handling equipment | Deep-groove ball bearing or angular-contact bearing | Balls carry the rotating shaft while the bearing arrangement manages radial forces and pump thrust. | Continuous radial load with possible axial thrust | Contact seals, shields, and water-resistant grease where required | Moisture resistance, correct shaft alignment, and adequate lubrication |
| Conveyors for grain, feed, and harvested crops | Pillow-block bearing or take-up bearing | The housing supports the conveyor shaft and allows adjustment for belt tension and alignment. | Moderate radial load and continuous rotation | Sealed housing, flingers, and periodic grease replenishment | Protection from abrasive dust, easy alignment, and service access |
| Manure spreaders and slurry equipment | Heavy-duty spherical roller or mounted bearing | Rolling elements support slow, heavily loaded shafts and accommodate limited misalignment. | High radial load, shock, and contamination exposure | Multi-lip seals, grease, and protective bearing housings | Chemical resistance, sealing performance, and low-speed load capacity |
| Sprayer booms, pivot points, and folding mechanisms | Plain bushing or spherical plain bearing | A sliding surface or spherical liner permits controlled oscillation where continuous rotation is not required. | Oscillating motion with radial and occasional axial load | Grease grooves, protective seals, or corrosion-resistant surfaces | Low-speed movement, wear resistance, and corrosion protection |
