Hangzhou Huaxing Kechuang Holding Group Co., Ltd. is one of the leading manufacturers and suppliers of radial ball bearing 203krr in China. As we have world-leading production equipment and strong manufacturing capabilities, we warmly welcome you to buy bulk high quality bearings at competitive price from our factory.
Single Row Deep Groove Ball Bearing 203KRR
Specifications
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Bearing Type: |
Agricultural bearing 203KRR-radial ball bearing |
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Dimension (dxDxB): |
16.2x40x18.2mm, 0.63" * 1-1/2" * 0.472" |
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Material: |
Chrome steel | |
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Seals: |
Contact seals on both sides, G design or R design | |
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Retainer: |
Steel | |
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Grease: |
Mobile | |
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Precision: |
P0 | |
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Heat Stabilization: |
Temperatures from -20°C up to 120 °C | |
| Speed Limit: | 3000rpm | |
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Brand: |
HXB or OEM brand | |
| Also know as: | 203KRR50SP1, 203KRR2, 203KRR3, 203-XL-KRR-AH02, 203KRR-2RS-FOR016H7, 203KRR C3 PFI, 203-KRR-AH14 | |
| Application: | Idler sprocket, conveyor rollers, combine PT, baler drive rolls, pulley, lawn mower spindle bearing |
Applications
1. Precision Seeding Machine
Applicable to mainstream John Deere planter series including 7200, 7300, 1760 and 1780 MaxEmerge planters. The bearing serves for gauge wheels, opening discs and depth-limiting wheels. It maintains flexible rotation and stable depth control in dry soil, sandy and light muddy fields, ensuring consistent sowing depth and uniform seed spacing.
2. Rotary Hoe & Tillage Equipment
Perfectly matched with John Deere 400-series rotary hoes (415, 420, 428, 430) and medium-duty disc harrows. Installed on rotary blade shafts and harrow disc rotating parts, it resists soil impact and dust erosion, guarantees continuous and stable operation during high-frequency tillage, and reduces field maintenance frequency.
3. Grain & Cash Crop Harvesters
Widely used on corn and rice harvesters, applied to key moving components such as straw shifting wheels, stubble removing blades and auxiliary conveying wheels. The reliable sealing structure prevents crop residues, dust and humid field water from entering the bearing, effectively avoiding jamming and premature wear during long-hour harvesting operations.
4. Fertilizing & No-Till Planting Equipment
Applied to depth-limiting wheels and pressing wheels of no-till seeders and variable-rate fertilizer spreaders. It bears continuous ground contact pressure and vibration during field traveling, keeping stable rotation of pressing and profiling components to ensure even soil compaction and precise fertilizing & seeding effect.
5. Cotton Harvesting Equipment
Compatible with John Deere 740 cotton stripper machines, used for auxiliary rotating and profiling wheel components. It adapts to dry and dusty cotton field environments, providing durable rotation support and stable operating accuracy for cotton harvesting and stripping processes
Suffix code Explanation
• 203: Dimension series, matching the size of 6203 bearing.
• K: Extended inner ring lip, designed to prevent grass and straw wrapping.
• RR: Double trash guard seals for dust and water resistance.
Equivalent & Alternative Part Numbers
• Mower spindle bearing 203KRR
• P203, 203KRR2, 203KRR3
• INA 203-KRR, Timken 203KRR
Features
• Professional multi-lip sealing structure, effectively blocking mud, water and grass debris, maintenance-free.
• Raised inner ring prevents winding by crop residues.
• High speed performance and good impact resistance.
• Interchangeable with 6203-2RS in mounting dimensions, with superior sealing and longer service life.
Typical Applications
• Lawn mower deck spindle (direct replacement for 6203-2RS).
• Seed metering shafts of seeders and no-till planters.
• Piston rollers and sprocket shafts for harvesters and balers.
• Pulleys and idler bearings for agricultural transmission systems.
Our partner in this area
Advantages
∗ 2 R&D centers
∗ 2 modern manufacturing factories - Hangzhou Yijia Precision Bearing Co., Ltd. and Zhejiang Ruiyang Bearing Technology Co., Ltd.
∗ Supported by advanced digital MES and SPC management systems
∗ IATF16949:2016, ISO9001:2015 and ISO14001 certifications
∗ High-end equipment and high-quality material
About HXB
1. Hangzhou Factory - YJB
Founded in June 2007, YJB is located in Hangzhou. As a subsidiary of HXB Group, we are a national high-tech enterprise and provincial science & technology enterprise specializing in R&D and manufacturing of high-precision, high-speed, advanced, special and professional bearings.
Core Capabilities & Intelligent Manufacturing
- Product Size: Inner diameter Φ3–Φ300mm
- Precision Classes: P2, P4 (ultra-precision grades)
2. Huzhou Factory
In 2021, the deep groove ball bearing factory relocated from Hangzhou to Huzhou. It operate in a 10,000㎡ production facility with a team of 75 employees, focused on the R&D, and manufacturing of high-performance deep groove ball bearings.
We maintain a professional engineering and quality system to ensure stable precision and reliability.
Certificates
Exhibition
FAQ
1. What makes 203KRR bearings different from standard bearings for farm machinery? 203KRR agricultural bearings adopt enhanced integrated sealing structures optimized for rural harsh environments. Compared with ordinary bearings, they deliver superior dust, mud and moisture resistance, withstand frequent vibration and impact loads, and maintain stable performance in long-duration field operations.
2. What farm equipment is the 203KRR bearing most suitable for? It is primarily applied to core rotating components of precision seeders, rotary tillers, disc harrows, crop harvesters and cotton stripping machines. It fits gauge wheels, press wheels, cutter shafts and auxiliary transmission parts of mainstream agricultural machinery.
3. Why do agricultural bearings fail easily in field operation? Premature failure mainly stems from external contamination such as soil, crop residues and humid mud invading internal structures, as well as continuous impact vibration and overload operation. Ordinary bearings with weak seals cannot adapt to such complex working scenarios.
4. What are the advantages of KRR series sealed bearings for farming scenarios? The exclusive sealing design effectively blocks fine dust and muddy impurities, reducing internal grease deterioration and abrasion. These bearings feature low friction, stable rotation and extended service life, lowering frequent field replacement and maintenance costs.
5. Can 203KRR bearings adapt to all-weather farm operation? Yes. The series withstands variable outdoor temperatures, dry dusty conditions and humid muddy environments. Its robust structural stability guarantees consistent working efficiency for seasonal and long-cycle agricultural production.
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