Description
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | 6306 |
| Bearing Type | Deep Groove Ball Bearing |
| Dimensions (d x D x B) | 30x72x19 mm |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
| Separated | Unseparated |
| Spherical | Non-Aligning Bearings |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Feature | Long Life, High Speed, Low Noise |
| Stock | Rich Stocks |
| HS Code | 8482102000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Automotive | Motorcycle engines, wheel hubs, transmission systems |
| Industrial Machinery | Conveyors, pumps, electric motors |
Need a Reliable 6306 Deep Groove Ball Bearing for Your Motorcycle? Here’s What Matters
Motorcycle bearings face constant stress from high speeds, varying loads, and temperature changes. Choosing the wrong bearing often leads to premature failure—costing time and money in repairs. Many buyers struggle with inconsistent quality from suppliers or difficulty finding the exact 30x72x19mm size needed for their specific model.
Built for High-Speed Motorcycle Performance
This 6306 deep groove ball bearing is engineered to address these challenges. With its 30x72x19mm dimensions, it fits standard motorcycle applications requiring reliable radial load support at high rotational speeds. Our supply chain covers a wide range of international brand specifications, ensuring you get the right bearing without multiple supplier comparisons. The bearing steel construction and precision manufacturing help minimize noise and extend service life, critical for both everyday riding and performance motorcycles.
Where This Bearing Performs Best
Designed for high-speed operation, this 6306 bearing excels in motorcycle crankshafts, wheel assemblies, and transmission components where rotational speeds can reach thousands of RPM. Its non-aligning design works best in applications with minimal shaft misalignment, providing consistent performance under radial loads. Whether used in street bikes, off-road motorcycles, or scooters, the combination of low noise and long life makes it a practical choice for both OEM and replacement needs.
Engineering Details That Matter
The bearing’s performance starts with high-quality bearing steel, which offers excellent hardness and fatigue resistance—key properties for withstanding the cyclic stresses of motorcycle operation. Precision ratings from P0 to P2 allow customization based on application requirements; higher precision grades (P5, P4) reduce vibration at high speeds, while standard P0 suits general-purpose use. Vibration classes Z1V1 to Z3V3 further refine noise levels, with Z3V3 providing the quietest operation for rider comfort. The unseparated design ensures easy installation and maintenance, while grease or oil lubrication options accommodate different operating conditions.
Why Bearing Quality Affects Your Bottom Line
Choosing a low-quality 6306 bearing may save money upfront, but the hidden costs add up quickly. Poorly manufactured bearings often fail early due to material impurities or imprecise machining, leading to unexpected downtime and repairs. A high-quality bearing like this one, with proper heat treatment and dimensional accuracy, reduces the risk of catastrophic failure. By meeting international standards for load capacity and durability, it helps lower total ownership costs by extending service intervals and minimizing maintenance requirements.
Quality You Can Rely On
Our bearings undergo strict inspection processes, including dimensional checks and surface hardness testing, to ensure consistency and performance. We maintain rich stock levels, supporting same-day shipping for urgent orders. All products come with a warranty against manufacturing defects, giving you confidence in your purchase. Whether you need a single replacement or bulk quantities for production, we handle orders of all sizes with the same attention to quality and detail.
Packaging & Shipping
- Standard packaging: Carton and pallet for secure transportation
- Stock availability: Ready for immediate dispatch
- Shipping options: Flexible delivery by sea, air, or express courier
- Minimum order quantity: Low MOQ supported for small and large orders
Get a Quote for Your 6306 Motorcycle Bearing
Whether you need the 6306 deep groove ball bearing for motorcycle repair or production, we can provide a competitive quote based on your quantity and delivery requirements. Simply share the model, dimensions, and specifications you need, and our team will respond promptly with pricing and availability. The sooner you confirm your order, the sooner we can arrange shipping to keep your operations running smoothly.
Frequently Asked Questions
Q: Do you supply bearings from other international brands?
A: Yes, we offer a full range of bearings from major international brands as well as domestic manufacturers, and can source specific models according to your requirements.
Q: How can I confirm if this 6306 bearing fits my motorcycle?
A: Provide your motorcycle model or the original bearing dimensions (d x D x B), and our technical team will verify compatibility with the 30x72x19mm规格.
Q: What is your warranty policy for this bearing?
A: We provide a warranty against manufacturing defects. Specific terms are outlined in the sales contract, and defective products can be replaced or refunded within the warranty period.
Q: What is the minimum order quantity for this bearing?
A: We accept low minimum order quantities, including small batches for testing or emergency replacements, as well as large volume orders for production.
Q: How long does shipping take to my location?
A: Stock items ship the same day. Delivery times vary by destination—express courier takes 3-5 days, air freight 7-10 days, and sea freight 30-45 days on average.
Q: Can you provide custom packaging or labeling for this bearing?
A: Yes, we offer OEM/ODM services, including custom packaging, label printing, and technical documentation to meet your specific requirements.
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.







