Ensure smooth, precise operation of your industrial machinery with the 6303 ball bearing, engineered to deliver reliable performance in demanding applications. This high-precision deep groove ball bearing (17x47x14mm) minimizes vibration and noise, thanks to its ZZ/2RS seals and P0-P4 precision ratings, keeping your equipment running longer with less maintenance.
| Parameter | Details |
|---|---|
| Model NO. | 6303 |
| Seals Type | Zz, 2RS, Open |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Service | OEM, ODM |
| Aligning | Non-Aligning Bearing |
| Separated | Unseparated |
| Rows Number | Single |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Contact Angle | 0° |
| Specification | 17×47×14mm |
| Origin | China |
| HS Code | 8482102000 |
| Industry | Typical Equipment |
|---|---|
| Industrial Machinery | Machine Tools, Printing Equipment, Reducers |
| Automotive | Hub Assemblies, Electric Motors |
| Agriculture | Harvesters, Tractors |
| Home Appliances | Washing Machines, Refrigeration Compressors |
| New Energy | Wind Turbines, Photovoltaic Equipment |
Industrial machinery operators know the cost of unexpected downtime—hours lost to bearing failures, maintenance delays, and production halts. When standard bearings wear prematurely or fail under heavy loads, the ripple effect hits deadlines and profits. Sourcing reliable 17x47x14mm bearings that balance precision, durability, and delivery speed remains a constant challenge for equipment managers and buyers.
Our 6303 deep groove ball bearing addresses these pain points with precision engineering and flexible supply. Available in ZZ (metal shielded), 2RS (rubber sealed), and open configurations, this 17x47x14mm bearing suits industrial machinery demanding consistent radial load handling and low noise operation. With precision ratings from P0 to P4 and vibration grades up to Z3V3, we meet the strict requirements of machine tools, reducers, and printing equipment where accuracy directly impacts output quality.
This deep groove ball bearing excels in applications requiring high rotational speeds and stable load distribution. Its single-row design and 0° contact angle make it ideal for radial load-dominant machinery, while bearing steel construction ensures resistance to wear under continuous operation. Whether used in conveyor systems, electric motors, or agricultural equipment, the 6303 bearing maintains performance in temperatures ranging from standard industrial environments to moderate heat conditions, supported by grease or oil lubrication options.
Key technical features define this bearing’s reliability: Precision ratings (P0-P4) control dimensional accuracy—critical for minimizing vibration in high-speed spindles. Vibration grades (Z1V1-Z3V3) ensure smooth operation, reducing noise in precision equipment like CNC machines. Seal options provide flexibility: ZZ shields offer excellent debris protection in dusty environments, while 2RS seals retain lubrication in wet conditions, extending maintenance intervals. The unseparated design simplifies installation, reducing assembly time and errors in production lines.
Choosing genuine high precision ball bearings avoids the hidden costs of counterfeits. Substandard bearings often fail prematurely, leading to repeated replacements, unplanned downtime, and potential damage to expensive machinery components. Our 6303 ZZ bearing, manufactured under ISO 9001 and ISO 14001 standards, undergoes rigorous quality control—from raw material inspection to final performance testing. This commitment to quality reduces long-term costs by extending service life and ensuring consistent performance, ultimately lowering total ownership expenses.
With over 18 years in the industry, Jinan Saifan Bearing delivers on reliability. We maintain full R&D capabilities and a dedicated QC lab to ensure every bearing meets specification. Our 12-month global warranty covers manufacturing defects, with free technical guidance and responsive after-sales support. For buyers, this means confidence in supply—whether you need 1 piece for emergency repairs (1pc MOQ) or bulk orders with 5–15 day delivery. We supply authentic bearings and offer OEM/ODM customization to match your exact requirements, backed by flexible payment options including T/T, credit card, and Alibaba Trade Assurance.
Don’t let equipment downtime affect your production schedule. Whether you need a single 6303 ZZ bearing for urgent repairs or bulk 2RS deep groove bearings for planned maintenance, we have the inventory and expertise to fulfill your order quickly. Send us your bearing specifications, application details, and quantity—our team will provide a quote within 24 hours, ensuring you get the right bearing when you need it.
Q: Are these 6303 ball bearings authentic?
A: Yes, we supply authentic bearings manufactured under strict quality controls. Our products are backed by ISO 9001 and ISO 14001 certifications, with full traceability from production to delivery.
Q: How do I confirm if the 17x47x14mm size fits my equipment?
A: Provide your equipment model or technical drawings, and our engineering team will verify compatibility based on load, speed, and mounting requirements.
Q: What is the warranty policy for this bearing?
A: We offer a 12-month global warranty covering manufacturing defects. Defective products will be replaced or refunded at no additional cost.
Q: What is the minimum order quantity?
A: We accept 1pc MOQ for standard items, ideal for emergency repairs or small-batch testing.
Q: How quickly can you ship the 6303 ZZ bearing?
A: Standard items are available for sample shipment within 3–5 days, with bulk orders delivered in 5–15 days depending on quantity.
Q: How can I verify the bearing's quality upon receipt?
A: Each bearing undergoes pre-shipment inspection. We can provide test reports upon request, and our technical team is available to guide installation and performance checks.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity
High-grade chrome steel, raw material QC, full-process monitoring, ISO/ABMA/DIN compliance.
Samples in 3-5 days, bulk orders 5-15 days. Free samples for distributors (freight collect).
P0-P4 precision grades, Z2-Z3-Z4 noise levels. Custom drawings welcome.
Professional technical guidance and failure solutions from our R&D team.
Master Sweden import duty thrust ball bearing costs by understanding that zero percent EU tariffs still incur twenty-five percent VAT. Avoid costly customs delays at Gothenburg port through accurate HS code 8482.50 classification and complete origin documentation to protect your distribution margins.
Read ArticleNavigate the Global Spherical Roller Bearing Market 2026 by addressing the structural divergence between wind energy precision and mining durability needs. Learn how quality control bottlenecks drive lead time volatility and why adopting mixed-brand sourcing strategies is essential for mitigating inventory risks in a fluctuating supply chain.
Read ArticleDiscover how China Deep Groove Ball Bearing Manufacturing Trends 2026 shift focus from price to reliability through advanced anti-corrosion packaging and strict batch consistency. Learn why moisture control and traceable steel sourcing are critical for reducing total cost of ownership in global exports.
Read ArticleOur R&D team supports full OEM/ODM customization with technical drawings. Contact us for stable factory pricing and reliable supply.
