Most farmers neglect daily bearing maintenance amid tight farming schedules. A simple, easy-to-operate maintenance process requires no professional equipment, extends bearing service cycles and prevents mid-operation breakdowns. Every bearing failure halts work for at least half a day during peak sowing and harvesting, sharply increasing labor and fuel costs. Bearing service life can be extended by over 30% through three-stage maintenance before, during and after seasonal use, which farmers can complete independently.

I. Basic Pre-operation Inspection Every Day (5 Minutes)

1. Visual inspection of seals: Check whether rubber sealing rings and dust covers on bearing outer sides crack or fall off; replace damaged parts immediately to prevent sand and mud ingress.
2. Rotation test: Manually turn transmission shafts and rollers to detect jamming or abnormal noise; add grease in advance if rotation feels stiff.

3. Clear external debris: Scrape mud and straw attached to bearing seats to stop impurities seeping through gaps during operation.

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II. Regular Lubrication Maintenance During Operation

III. Simple Post-operation Protection Every Day

1. Only flush the housing around bearings with high-pressure water guns; avoid direct spraying onto bearing gaps to prevent mud and water infiltration.

2. After paddy field operations, coat a thin layer of anti-rust grease on the outer edge of bearing seals to isolate moisture.

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IV. In-Depth Off-Season Maintenance (Critical Step)

1. Disassemble bearings on key parts (rollers, wheel hubs, rotary tiller shafts) to remove deteriorated grease and internal sand/mud.
2. Inspect raceways and steel balls for pitting corrosion and wear; replenish anti-rust grease for minor wear and replace bearings with excessive damage.
3. Refill all machine bearings with long-term anti-rust lubricating grease, store agricultural machinery in dry warehouses and cover bearing parts with dust-proof films.

4. Rotate transmission shafts once every two months during storage to avoid rust seizure from long-term static placement.

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V. Common Misconceptions in Maintenance

1. More grease equals better lubrication: Excessive grease causes bearing overheating and accelerates aging under temperature rise.
2. Long-term use of aged sealing parts: Sealing rings lose elasticity after aging, and frequent grease injection cannot block sand and mud.

3. Outdoor storage of idle machinery: Rain and dew cause long-term erosion, easily leading to bearing rust seizure.

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