Agriculture bearing
Sealed against dust, mud and moisture — engineered to keep the harvest moving, season after season.
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![Mower Bearing Z9504-2RST]()
Mower Bearing Z9504-2RSTBearing Type: Agricultural bearing Z9504-2RSTview more
Dimensions (dxDxB): 19.05x45.21x15.494mm, 3/4" * 1.78" * 0.61"
Material: Chrome steel GCr15, SAE52100, SUJ2
Seals: Integral... -
![Radial Ball Bearing 203KRR]()
Radial Ball Bearing 203KRRBearing Type: Agricultural bearing 203KRR-radial ball bearingview more
Dimension (dxDxB): 16.2x40x18.2mm, 0.63" * 1-1/2" * 0.472"
Material: Chrome steel GCr15, SAE52100, SUJ2... -
![Agriculture Bearing 6203]()
Agriculture Bearing 6203Bearing Type: Deck spindle bearing 6203-2RST 6203-2DLRS radial ball bearingview more
Dimensions (dxDxB): 17*40*12mm
Material: Chrome steel GCr15, SAE52100, SUJ2
Seals: Trash guard... -
![Deck Spindle Bearing 6204]()
Deck Spindle Bearing 6204Bearing Type: Deck spindle bearing 6204-2RST 6204-2DLRS radial ball bearingview more
Dimensions (dxDxB): 20*47*14mm (for high-horsepower mowers)
Material: Chrome steel GCr15, SAE52100,... -
![Farm Implement Bearing 204PY3]()
Farm Implement Bearing 204PY3Bearing Type: Farm implement bearing 204KRR8-radial ball bearingview more
Dimensions (dxDxB): 16.052x45.225x15.4mm, 0.632" * 1.781" * 0.61" * 0.73
Material: Chrome steel GCr15, SAE52100,... -
![Agriculture Bearing 204KRR8]()
Agriculture Bearing 204KRR8Bearing Type: Agricultural bearing 204KRR8-radial ball bearingview more
Dimensions (dxDxB): 16.027x45.225x15.4mm, 0.626" * 1.781" * 0.61"
Material: Chrome steel GCr15, SAE52100, SUJ2...
Agriculture Bearing — Core Advantages & Value Proposition
Core Technical Advantages
Sealed for life against contamination
Multi-lip rubber seals (2RS design) keep out dust, mud, chaff and water, protecting the raceways in the harshest field conditions.
No relubrication, no maintenance
Pre-packed with agricultural-grade grease and sealed for life; no grease fittings, no re-greasing intervals to manage mid-season.
C3 clearance for shock and heat
Greater internal clearance absorbs thermal expansion and interference fits under heavy, vibrating loads.
High shock-load and vibration capacity
Deep raceway grooves and robust rings handle impacts from rough terrain, PTO shock and high-speed implement rotation.
Corrosion resistance
Anti-rust surface treatment as standard; stainless-steel ring options for exposure to moisture, fertilizer and chemicals.
Wide operating temperature
High-viscosity agricultural grease keeps the bearing functional across cold starts and hot field days.
Extended service life
Sealed-in grease plus contamination exclusion means slower wear and longer life between replacements.
Drop-in ISO dimensions
Standard metric sizes and fits: direct replacement in the field or on the OEM line, no machining or redesign.
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Customer pain |
Solution |
Measurable benefit |
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Bearing failure from dust and mud ingress |
Multi-lip seals, sealed for life |
No mid-season field breakdowns |
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No time or facilities for maintenance |
Pre-lubricated, sealed-for-life design |
Zero re-greasing, lower maintenance cost |
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Shock and vibration on rough terrain |
Robust rings, C3 clearance, heavy-duty cage |
Fewer premature failures, longer life |
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Corrosion from moisture, fertilizer, chemicals |
Anti-rust treatment; stainless options |
Reliable operation in corrosive exposure |
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Unplanned downtime during planting/harvest |
High-reliability sealed construction |
Harvest window protected, higher machine uptime |
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Parameter |
Specification |
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Bearing type |
Deep groove ball bearing for agricultural machinery, heavy-duty sealed |
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Standards |
ISO 15 (dimensions) · DIN 625 · ISO 15242-3 (vibration) |
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Size range |
Metric deep-groove series, bore 3–100 mm；imperial sizes on request |
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Seals |
Heavy-duty multi-lip rubber seals (2RS agricultural grade) standard；ZZ / open optional |
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Internal clearance |
C3 standard；C4 recommended for heavy shock loads |
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Ring material |
AISI 52100 chrome steel with anti-rust surface treatment；AISI 440C stainless optional |
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Cage |
Pressed steel standard；machined brass for severe shock |
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Grease |
High-viscosity agricultural grease, high fill volume；temperature / chemical variants on request |
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Operating temperature |
−30 to +120 °C (grease-dependent) |
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Load ratings (Cr / C0r) |
Size-dependent — per catalog for the selected size |
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Mass |
Size-dependent |
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Precision grade |
P0 (ABEC-1) standard |
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Corrosion protection |
Anti-rust treatment standard；stainless / coated options for fertilizer & chemical exposure |
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Application |
Typical machine |
Where the bearing works |
Key requirement → bearing advantage |
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Tractors |
Utility & row-crop tractors |
PTO shafts, transmission countershafts, wheel hubs, steering, mower-deck spindles |
Dust & mud exposure · shock · long hours → multi-lip seals, C3, robust rings |
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Combines & harvesters |
Grain combines, forage harvesters |
Header drives, augers, conveyors, threshing drums |
Chaff & debris · vibration · peak-season uptime → sealed for life, contamination-proof |
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Mowers & cutters |
Rotary mowers, flail mowers, disc cutters |
Blade spindles, deck idlers, belt tensioners |
High speed · grass/debris · impact loads → sealed spindles, high speed capability |
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Balers |
Round & square balers |
Pickup rollers, knotters, flywheel shafts |
Dusty crop residue · shock · no maintenance access → heavy-duty seals, high fill grease |
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Planters & seeders |
Precision planters, grain drills, tillage tools |
Gauge wheels, disc openers, packer wheels |
Soil & dust ingress · continuous field duty → 2RS sealed, corrosion protection |
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Sprayers |
Field & orchard sprayers |
Pump drives, boom actuators, fan drives |
Chemical exposure · moisture → anti-rust / stainless options, sealed |
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Irrigation & pumping |
Center pivots, irrigation pump sets |
Pump motors, drive shafts, pivot wheels |
Water & humidity · long unattended runs → sealed-for-life, corrosion resistant |
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Grain handling |
Augers, bucket elevators, conveyors |
Drive ends, idler rollers, flight bearings |
Grain dust · continuous operation → sealed bearings, low maintenance |
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Hay equipment |
Tedders, rakes, conditioners |
Rotor and roller drives |
Dust, moisture, impact → heavy-duty sealed construction |
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Feed & livestock equipment |
Mixer wagons, ventilation fans, augers |
Mixer augers, fan motors |
Dust, vibration, hygiene washdowns → sealed, corrosion-resistant options |
FAQ
Q1. What kind of bearing do agricultural machines use?
Deep groove ball bearings are the most common type in agricultural machinery — used in tractor PTO shafts, combine headers, mower spindles, balers, irrigation pumps and grain augers. They are typically supplied sealed (2RS) with C3 clearance and agricultural-grade grease.
Q2. Why do agricultural bearings need special sealing?
Farm equipment runs in dust, mud, chaff, crop residue and water. Standard bearings quickly ingest this contamination, which abrades the raceways and destroys the grease. Heavy-duty multi-lip rubber seals keep contaminants out and grease in.
Q3. Are agricultural bearings maintenance-free?
Yes. Agricultural deep groove ball bearings are pre-packed with grease and sealed for life, so no re-greasing or maintenance is needed during their service life — important on machines with no maintenance access in the field.
Q4. What does C3 clearance mean on an agricultural bearing?
C3 is a larger internal clearance than normal. It accommodates shaft growth under heat and interference fits under heavy or vibrating loads, preventing the bearing from being preloaded and overheating in field conditions.
Q5. Can these bearings handle shock loads and vibration?
Yes. Deep raceway grooves, robust steel rings, and typically a pressed-steel or brass cage give good shock and vibration capacity — a key reason they are used on mower blades, baler flywheels and harvester drives.
Q6. How do I protect bearings from corrosion from fertilizer, moisture and chemicals?
Standard bearings come with an anti-rust surface treatment. For chemical and wet exposure, specify stainless-steel (AISI 440C) rings or coated versions. Sealed bearings also keep moisture out of the rolling contact.
Q7. What grease is used in agricultural bearings?
Sealed agricultural bearings use a high-viscosity grease with a high fill volume to withstand heavy loads, water washout and wide temperature swings. High-temperature or corrosion-inhibited greases are available for special duties.
Q8. How long do agricultural bearings last?
Service life depends on load, speed, contamination and maintenance. Sealed-for-life construction with proper selection typically gives many seasons of reliable operation; confirm expected life with the bearing manufacturer for your specific application.
Hangzhou Huaxing Kechuang Holding Group Co., Ltd. is one of the leading manufacturers and suppliers of agriculture bearings in China, featured by quality products and good service. Please rest assured to buy bulk durable agriculture bearings from our factory. Welcome to view our website for more information.
204RR6A4362, Agriculture Bearing 6203, Deck Spindle Bearing 6204
