Description
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | 6309 |
| 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 | 45×100×25 mm |
| HS Code | 8482102000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | Conveyor systems, pumps, gearboxes, electric motors |
| Automotive | Wheel hubs, alternators, power transmission units |
| Manufacturing | Machine tools, robotics, assembly line equipment |
Need Reliable Deep Groove Ball Bearings for Industrial Machinery? Here’s What Matters
Procuring the right bearing often means navigating through countless models and specifications, only to find compatibility issues during installation. Many buyers face unexpected downtime due to early wear from low-quality bearings, or struggle to source multiple types from a single supplier. As someone with years in industrial procurement, I know how critical it is to get both the specifications and reliability right the first time.
Engineered for Consistent Performance in Demanding Environments
This Deep Groove Ball Bearing series (6309-6317) addresses these challenges with interchangeable dimensions that align with major international standards, ensuring a precise fit for existing equipment. Our extensive inventory covers both common and hard-to-find models, with the ability to fulfill urgent orders within 48 hours. Whether you need the 6309 Zz for high-speed applications or the 6317 2RS for dusty environments, we provide one-stop access to the full range of P0-P4 precision ratings.
Optimal Performance Across Key Industrial Scenarios
These bearings excel in radial load-dominant applications with operating speeds up to 6,000 RPM (depending on lubrication and seal type). The non-aligning design makes them ideal for rigid shaft systems, while the single-row construction ensures compact installation in space-constrained machinery. From conveyor belt rollers to hydraulic pumps, their robust bearing steel construction delivers reliable performance in temperatures ranging from -30°C to 120°C.
Technical Details That Impact Long-Term Reliability
The precision rating directly affects operational stability: P4 class bearings reduce vibration by 30% compared to P0, critical for high-precision machine tools. Sealing options matter too—2RS seals provide 90% better contamination resistance than open designs, extending service life in dusty manufacturing environments. Vibration class Z3V3 ensures smooth operation in electric motors, minimizing noise and energy loss. The 0° contact angle optimizes radial load capacity, with dynamic load ratings engineered to meet ISO 281 standards for predictable fatigue life.
Why Choosing the Right Bearing Lowers Total Cost
While upfront cost is a consideration, the true value lies in total cost of ownership. A P5 precision bearing may cost 15% more than a P0, but reduces maintenance intervals by 40% in continuous operation. Using bearings with proper seals cuts lubrication requirements by 50%, lowering labor costs. Conversely, mismatched precision or seal types can lead to premature failure, resulting in unplanned downtime that costs far more than the initial savings on a substandard bearing.
Quality Assured Through Rigorous Processes
Every bearing undergoes dimensional inspection using calibrated equipment to ensure compliance with stated tolerances. Our quality control team checks surface hardness (HRC 58-62) and raceway finish to verify wear resistance. We maintain complete batch traceability for all products, and offer a warranty against manufacturing defects. With ISO 9001-certified procedures from procurement to delivery, we ensure consistent quality across every order, whether for 10 units or 10,000.
Packaging & Shipping
- Standard packaging: Carton boxes with inner plastic sleeves, palletized for bulk orders
- Stock items ship within 48 hours of order confirmation
- Flexible logistics: Express courier (3-5 days), air freight (5-7 days), or sea freight (25-35 days)
- Low minimum order quantity: Start with small batches for testing, scale up as needed
Get a Custom Quote for Your Exact Requirements
Whether you need the 6309 Zz with P4 precision or the 6317 2RS for heavy-duty applications, provide your model number, required quantity, and delivery location. We’ll confirm availability, pricing, and lead time within 24 hours. With access to a full range of industrial bearings, we can also help source other models to streamline your procurement process.
Frequently Asked Questions
Q: Can you supply bearings from other brands besides those listed?
A: Yes, we support procurement of bearings from all major international and domestic brands. Simply provide the brand, model, or dimensional specifications, and we’ll source accordingly.
Q: How do I confirm if this bearing fits my equipment?
A: Share your equipment model or existing bearing dimensions (inner diameter x outer diameter x width), and our technical team will verify compatibility with the 6309-6317 series.
Q: What warranty do you offer on these bearings?
A: We provide a standard warranty against manufacturing defects. The exact duration is specified in each order confirmation, with replacement or refund available for verified quality issues.
Q: What is the minimum order quantity for this bearing?
A: We accept low minimum orders, starting from 1 unit for stock models. Larger quantities may qualify for volume pricing.
Q: How quickly can you ship to [overseas location]?
A: Stock items ship within 48 hours. For international destinations, express courier takes 3-5 days, air freight 5-7 days, and sea freight 25-35 days depending on the port.
Q: Do you offer custom bearing solutions (OEM/ODM)?
A: Yes, we support OEM/ODM services including custom packaging, laser marking, and pre-lubrication according to customer specifications.
Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.







