Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | 6311 |
| Separated | Unseparated |
| Rows Number | Single |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Product Name | Deep Groove Ball Bearing |
| Seals Type | ZZ 2RS Open |
| Lubrication | Grease or Oil |
| Precision Rating | P0 P6 P5 P4 |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Service | OEM ODM |
| Transport Package | Carton Pallet |
| Specification | 25×52×15 mm |
| HS Code | 8482102000 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Automotive & Motorcycles | Motorcycle engines, transmission systems, wheel hubs |
| General Machinery | Electric motors, pumps, gearboxes, conveyors |
Stop Motorcycle Downtime with Reliable 6311 Deep Groove Ball Bearings
Motorcycle manufacturers and maintenance services often face unexpected shutdowns due to bearing failures. Counterfeit bearings with poor sealing or material defects can lead to oil leakage, overheating, and premature wear—costing hours of repair time and lost productivity. Sourcing from unreliable channels also means inconsistent delivery times, making it hard to align with production schedules.
Genuine Deep Groove Ball Bearing 6311 for Stable Motorcycle Performance
Our 6311 Deep Groove Ball Bearing, designed specifically for motorcycle applications, addresses these challenges head-on. With precise dimensions of 25x52x15mm and both ZZ (metallic) and 2RS (rubber) seal options, this bearing ensures effective protection against dust and moisture in harsh riding conditions. As an official NTN distributor with ISO 9001 quality certification, we guarantee traceable, batch-stable supply directly from authorized channels, eliminating the risks of counterfeit products.
Optimal Performance in Motorcycle Operating Conditions
This 6311 Bearing excels in high-speed radial load environments typical of motorcycle engines and transmissions. Its single-row design and bearing steel construction deliver consistent performance under varying temperatures and vibration levels (Z1V1 to Z3V3 grades), ensuring smooth power transmission and extended service life. Whether for street bikes, off-road motorcycles, or commercial scooters, the 25x52x15mm Deep Groove Bearing provides the reliability needed for continuous operation.
Technical Features That Matter for Motorcycle Bearings
The precision rating options (P0 to P4) allow customization based on application requirements—P5/P4 grades for high-precision engines reduce noise and vibration, while P0/P6 suits standard transmission systems. The choice between ZZ and 2RS seals balances maintenance needs: ZZ seals offer superior heat resistance for high-temperature engine compartments, while 2RS seals provide enhanced protection against debris in off-road conditions. Grease or oil lubrication flexibility ensures compatibility with different motorcycle manufacturers’ specifications, simplifying integration into existing assembly lines.
Avoid Hidden Costs of Low-Quality Motorcycle Bearings
Choosing non-genuine 6311 2RS Motorcycle Bearings may seem cost-effective initially, but the long-term expenses tell a different story. Early failures can damage关联 components like crankshafts or gearbox housings, leading to repair bills 5-10 times the bearing cost. Our fully traceable bearings, backed by NTN’s OEM quality standards, reduce total cost of ownership by minimizing downtime and extending service intervals. Each unit comes with complete documentation, ensuring compliance with export customs requirements and avoiding delays in international shipments.
Why Motorcycle Manufacturers Trust Our Bearing Supply
With over 10 years of technical expertise and service across 50+ countries, we stand out as a reliable partner for motorcycle bearing needs. Our WMS real-time inventory system ensures stock availability for urgent orders, while dedicated account managers provide end-to-end support from选型 to after-sales. We offer small-batch trial orders for quality verification, followed by long-term supply agreements with reserved inventory—perfect for matching production cycles. Our global door-to-door logistics network delivers to Southeast Asia, Europe, and North America within standard lead times, with full export documentation included.
Packaging & Shipping
- Secure carton and pallet packaging with product labels and traceability information
- Stock items shipped within 3-7 business days of order confirmation
- Flexible shipping via DHL, FedEx, UPS, air freight, or sea freight based on urgency and volume
- Real-time tracking numbers provided once shipment is dispatched
- Minimum order quantity of 1 unit available for emergency repairs and small-batch testing
Get Your 6311 Motorcycle Bearings Delivered On Time
Don’t let bearing issues disrupt your production or maintenance schedule. Whether you need 10 units for urgent repairs or 10,000 for OEM production, our streamlined process ensures quick response and reliable delivery. Send us your model requirements, application details, and order volume today—we’ll provide a formal quotation with authorization certificates within 24 hours.
Frequently Asked Questions
Q: Are these genuine NTN bearings?
A: Yes, we are an official authorized NTN distributor. Every 6311 bearing comes with complete traceability documentation to verify authenticity, including brand authorization certificates.
Q: How do I confirm if the 6311 25x52x15mm bearing fits my motorcycle model?
A: Provide your motorcycle’s make, model, and engine type, or share the original equipment’s bearing specifications. Our technical team will verify compatibility and recommend the appropriate seal type (ZZ/2RS) and precision grade.
Q: What is the warranty policy for these bearings?
A: All bearings are covered by NTN’s OEM warranty standards. Manufacturing defects are eligible for unconditional replacement or refund, with support from our dedicated after-sales team.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, making it suitable for emergency maintenance, sample testing, or small-batch production needs.
Q: How long does shipping take to Europe?
A: In-stock 6311 bearings typically ship to European destinations within 5-7 business days via DHL or FedEx. For sea freight, delivery takes 30-40 days, ideal for bulk orders.
Q: How can I verify the bearing’s authenticity upon receipt?
A: Each bearing includes NTN’s original packaging with anti-counterfeit labels. We also provide traceability documents linking the product to NTN’s manufacturing batch, which can be cross-verified through official channels.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
