Product Specifications
| Parameter |
Details |
| Model NO. |
6304 |
| 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° |
| Transport Package |
Carton, Pallet |
| Specification |
20×52×15 mm |
| Origin |
China |
| HS Code |
8482102000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Printing Presses, Gearboxes |
| Automotive |
Electric Motors, Pumps, Compressors |
| Agriculture |
Harvesters, Tractors, Conveyors |
| Home Appliances |
Washing Machines, Fans, Refrigeration Units |
| New Energy |
Solar Panel Trackers, Wind Turbine Components |
Minimize Downtime with Reliable Deep Groove Ball Bearing 6304 for Industrial Machinery
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failures. A seized 6304 bearing in a production line can halt operations for hours, eroding profits and delaying orders. Many face challenges with inconsistent quality from low-cost suppliers, where bearings fail prematurely due to poor materials or imprecise manufacturing. Sourcing standard bearings with flexible MOQs and fast delivery often feels like an impossible balance between cost and reliability.
Precision-Engineered 6304 Bearing for Consistent Performance
Our Deep Groove Ball Bearing 6304 is designed to address these pain points head-on. With dimensions 20×52×15mm and precision ratings from P0 to P4, it meets the strict requirements of industrial machinery, ensuring smooth operation and extended service life. As an integrated manufacturer with full R&D and QC labs, we control every production step—from raw material selection to final inspection. Whether you need a single unit for emergency replacement or bulk orders for production lines, our 1pc MOQ and 5–15 day bulk delivery ensure you get the bearings you need when you need them.
Optimal Performance in Diverse Industrial Conditions
This 6304 bearing excels in radial load applications, making it ideal for high-speed rotating components in machine tools, conveyors, and electric motors. The single-row design with a 0° contact angle ensures efficient load distribution, while vibration grades Z1V1 to Z3V3 accommodate varying noise requirements—critical for precision equipment like printing presses. Available with Zz (metal shielded) or 2RS (rubber sealed) options, it provides reliable protection against contaminants, extending service life in dusty or humid industrial environments.
Technical Features That Drive Machinery Efficiency
The performance of your equipment depends on key bearing specifications. Our 6304 bearing’s precision rating directly impacts operational accuracy: P4 grade minimizes runout for CNC machine spindles, while P0 offers cost-effective reliability for general industrial use. Vibration levels (Z1V1 to Z3V3) reduce noise and energy consumption—essential for meeting workplace standards and optimizing machine efficiency. The choice between Zz and 2RS seals balances maintenance needs: Zz shields allow for relubrication, while 2RS seals provide superior protection in wet or dirty conditions. Made from high-grade bearing steel, this component delivers consistent hardness and wear resistance, even under continuous operation.
Why Quality Bearings Reduce Total Cost of Ownership
Choosing low-quality 6304 bearings may save upfront costs, but the hidden expenses add up quickly. Premature failures lead to unplanned downtime, emergency repair fees, and potential damage to connected components. Our bearings, backed by ISO9001 and ISO14001 certifications, undergo rigorous testing to ensure durability. The 12-month global warranty covers manufacturing defects, and our defect replacement policy means you won’t bear the cost of substandard parts. For industrial machinery makers, investing in reliable bearings reduces maintenance intervals and extends equipment lifespan—lowering total cost of ownership over time.
Your Trusted Partner for Bearing Supply
Since 2005, Jinan Saifan Bearing has served global buyers across Europe, America, Southeast Asia, and the Middle East. Our commitment to quality is supported by: full in-house R&D capabilities, a dedicated QC lab for material and performance testing, and OEM/ODM customization services to meet unique specifications. We offer free technical guidance to help you select the right bearing for your application, whether it’s a standard 6304 or a custom-engineered solution. With a production capacity of over 1,000,000 units annually, we ensure stable supply even for large-scale orders. Our transparent supply chain and traceable manufacturing process give you confidence that every bearing meets your standards.
Packaging & Shipping
- Secure carton packaging with palletization for bulk orders, ensuring protection during transit
- 3–5 day lead time for samples, 5–15 day delivery for bulk orders
- Flexible shipping options: DHL, FedEx, UPS, air freight, or sea freight
- Real-time tracking provided for all shipments
- 1pc MOQ for standard items, supporting both emergency repairs and small-batch purchases
Get Your 6304 Bearing Shipped Fast
Don’t let bearing issues slow down your production. Whether you need a single Deep Groove Ball Bearing 6304 for urgent repairs or a regular supply for your manufacturing line, we’re ready to fulfill your order. Send us your specifications, quantity, and application details, and we’ll provide a quote within 24 hours. The sooner you order, the sooner you can restore efficiency to your machinery.
Frequently Asked Questions
Q: Are these bearings genuine and reliable?
A: Yes, our bearings are manufactured in-house under strict ISO9001 and ISO14001 standards. Each unit undergoes quality testing, and we provide full traceability for manufacturing processes.
Q: How do I confirm if the 6304 bearing fits my equipment?
A: Provide your equipment model, load requirements, and operating speed, and our technical team will verify compatibility and recommend the optimal precision and seal type for your application.
Q: What is your warranty policy?
A: We offer a 12-month global warranty covering manufacturing defects. If a bearing fails under normal operating conditions, we provide free replacement or refund.
Q: What is the minimum order quantity?
A: Standard items have a 1pc MOQ, ideal for emergency repairs or small-scale projects. Bulk discounts are available for larger orders.
Quality Assurance
100% Inspection
High-grade chrome steel, raw material QC, full-process monitoring, ISO/ABMA/DIN compliance.
Delivery
3-15 Days
Samples in 3-5 days, bulk orders 5-15 days. Free samples for distributors (freight collect).
Customization
Full OEM/ODM
P0-P4 precision grades, Z2-Z3-Z4 noise levels. Custom drawings welcome.
After-Sales
12-Month Warranty
Professional technical guidance and failure solutions from our R&D team.
