Product Specifications
| Parameter |
Details |
| Model NO. |
Koyo 6204r, 6304, 6907, 16007, 6007, 6207, 6207r, 6307 |
| Separated |
Unseparated |
| Rows Number |
Single |
| Load Direction |
Radial Bearing |
| Material |
Bearing Steel |
| Specification |
45*68*12mm |
| Trademark |
NTN |
| Origin |
Germany, Sweden, Japan |
| HS Code |
8482102000 |
| Production Capacity |
1000000 units |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine tools, Printing presses, Reducers, Conveyors |
| Automotive |
Hub assemblies, Electric motors, Gearboxes |
| Agriculture |
Harvesters, Tractors, Farm machinery |
| New Energy |
Wind turbines, Photovoltaic equipment |
| Home Appliances |
Compressors, Fans, Pumps |
Reduce Downtime with High Precision Deep Groove Ball Bearings Koyo 6204r, 6304, 6907
Equipment failures from substandard bearings cost manufacturers thousands in lost production each year. Misaligned tolerances cause premature wear, while inconsistent material quality leads to unexpected breakdowns during critical operations. Sourcing authentic high precision bearings with reliable delivery often means navigating minimum order quantities that tie up capital or long lead times that delay repairs.
Genuine Bearings with Flexible Supply for Industrial Needs
Our Deep Groove Ball Bearings, including Koyo 6204r, 6304, and 6907 models, address these challenges with authentic components and adaptable service. As an integrated manufacturer and exporter with ISO9001 certification, we maintain strict quality control across our production process, ensuring each bearing meets P0-P4 precision standards. Whether you need a single unit for emergency maintenance or bulk orders for production lines, our 1pc MOQ for standard items and 3-5 day sample lead time keep your operations running without unnecessary delays.
Engineered for Reliable Performance in Demanding Conditions
These High Precision Ball Bearings excel in industrial machinery applications requiring consistent radial load handling and smooth rotation. Designed as single-row, unseparated units, they deliver stable performance in machine tool spindles, printing press rollers, and reducer assemblies operating at moderate to high speeds. The bearing steel construction ensures durability under continuous use, while precise manufacturing minimizes noise and vibration—critical factors in maintaining product quality and extending equipment lifespan.
Key Technical Features That Matter
The 45*68*12mm specification of these Industrial Machinery Bearings balances compact design with load capacity, making them versatile for space-constrained applications. As radial bearings, they efficiently support axial loads in both directions, a essential characteristic for equipment with bidirectional movement. The unseparated design simplifies installation and maintenance, reducing assembly time and potential errors. While specific dynamic load ratings and speed limits vary by model, each bearing undergoes rigorous testing to ensure compliance with international standards, providing predictable performance under real-world conditions.
Why Authentic Bearings Lower Total Costs
Choosing genuine 6304 High Precision Bearings over counterfeit alternatives eliminates hidden expenses associated with premature failure. Fake bearings often use substandard steel that fatigues quickly, leading to unexpected downtime, repair labor costs, and potential damage to mating components. Our products, sourced from certified origins including Germany, Sweden, and Japan, come with a 12-month global warranty, covering manufacturing defects and ensuring replacement or refund for non-conforming units. This commitment to quality translates to lower total cost of ownership by reducing maintenance frequency and extending equipment service intervals.
Our Promise to Industrial Buyers
With 18 years of experience serving global markets across Europe, America, Southeast Asia, and the Middle East, we’ve built a reputation for reliability. Our in-house R&D and QC lab ensure each bearing meets strict performance criteria before shipment. We offer free technical guidance to help you select the right bearing for your application, and our defect replacement policy provides peace of mind. For urgent needs, our 5-15 day bulk delivery ensures you receive critical components when you need them, supported by flexible payment options including T/T, credit card, and Alibaba trade assurance.
Packaging & Shipping
- Securely packed in original packaging with product identification labels
- Sample lead time: 3–5 days for standard items
- Bulk delivery: 5–15 days after order confirmation
- Multiple shipping options: DHL, FedEx, UPS, air freight, and sea freight
- 1pc minimum order quantity available for emergency repairs
Get Your Bearings Delivered Fast
Don’t let equipment downtime erode your productivity. Whether you need Koyo 6204r for industrial use or other precision bearings, send us your requirements today. With our ready stock and efficient logistics, we can have your order on the way quickly, minimizing disruption to your operations.
Frequently Asked Questions
Q: Are these bearings authentic Koyo products?
A: We supply authentic NSK/INA bearings and maintain strict quality control for our manufactured products. Each unit can be traced through our supply chain, and we provide documentation to verify authenticity upon request.
Q: How do I confirm if the 6304 bearing fits my machine?
A: Provide your equipment model or technical specifications (shaft diameter, housing bore, load requirements), and our technical team will verify compatibility free of charge.
Q: What warranty coverage do you offer?
A: All bearings come with a 12-month global warranty. Manufacturing defects are covered by free replacement or refund, and we provide technical support throughout the warranty period.
Q: What is the minimum order quantity?
A: We accept 1pc orders for standard items, making us ideal for emergency repairs or small-batch production needs.
Q: How long does shipping take to Europe?
A: Standard air freight to Europe typically takes 5–7 business days. Express options like DHL/FedEx are available for urgent orders, with delivery in 2–3 days.
Q: How can I verify the bearing’s precision class?
A: Each bearing is marked with its precision class (P0-P4) and noise grade (Z2-Z4). We can provide certification of compliance with ISO standards for critical applications.
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