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Ensure smooth, reliable transmission performance with our precision-engineered Tapered Roller Bearing, designed to reduce friction and extend equipment lifespan even under heavy loads. Crafted from high-grade Bearing Steel with P0-P2 precision ratings, these bearings deliver the durability and low noise operation professionals trust for critical transmission systems.
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| Parameter | Details |
|---|---|
| Model Number | 6306/6307/6308/6309/6310 |
| Outer Dimension | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Radial Bearing |
| Separated | Unseparated |
| Product Name | NTN/NSK/Koyo/NACHI/Timken Roller Bearing |
| 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 |
| Transport | by Sea or by Air |
| Service | OEM ODM |
| Transport Package | Carton Pallet |
| Trademark | NTN/NSK/KOYO/NACHI/TIMKEN |
| Origin | China |
| HS Code | 8482102000 |
| Production Capacity | 1000000 |
| Industry | Typical Applications |
|---|---|
| Automotive | Transmission systems |
| Industrial Machinery | High-speed rotating equipment |
| Manufacturing | Automation and conveyor systems |
Finding the right tapered roller bearing for transmission systems can be a hassle. Mismatched dimensions lead to installation delays, while low-quality options often fail prematurely with excessive noise or vibration. Sourcing from multiple suppliers just to compare brands and lead times only adds to the frustration.
Our Bdl 30308, 30309, 30310 tapered roller bearings address these challenges directly. Produced under ISO 9001 standards, each unit undergoes rigorous material and dimensional checks to ensure reliability. With rich stocks of both our own brand and international models like NTN, NSK, and Timken, we eliminate the need for multi-supplier sourcing. Whether your transmission operates in high-speed automotive applications or heavy industrial machinery, these bearings deliver the long life and low noise critical for smooth operation.
Designed as radial bearings with unseparated construction, these units excel in applications where load is primarily directed along the shaft axis. The medium to large outer dimensions (120-190mm) make them suitable for transmissions requiring robust support without excessive space. Their non-aligning design ensures stability in systems with minimal misalignment, while compatibility with both grease and oil lubrication allows adaptation to various operating conditions.
Bearing steel construction provides the hardness (typically 58-62 HRC) needed to withstand the cyclic stresses of transmission operation, directly contributing to extended service life. Precision ratings from P0 to P2 allow selection based on application requirements—P0 for general-purpose use, P5/P4 for high-precision transmissions where minimal vibration is critical. The Z1V1 to Z3V3 vibration classes further ensure quiet operation, a key consideration in automotive and industrial settings where noise reduction is essential. Together, these features create a bearing that maintains performance under the high speeds and variable loads common in transmission systems.
Investing in quality tapered roller bearings reduces long-term costs significantly. A bearing that meets precision and material standards avoids the hidden expenses of early failure—downtime for replacement, labor costs, and potential damage to adjacent transmission components. While cheaper alternatives may save upfront, their higher failure rate often leads to total costs 3-5 times greater over the equipment lifespan. Our bearings, with their long life and reliability, align with ISO 281 fatigue life calculations, ensuring predictable performance that keeps your transmission—and your operation—running efficiently.
Every bearing undergoes strict quality control: raw materials are inspected for chemical composition and mechanical properties, while finished products are checked for dimensional accuracy, surface finish, and hardness. We stand behind our products with a warranty covering manufacturing defects, and can provide test reports upon request. Our ability to supply both established brands (NTN, NSK, Timken) and custom OEM/ODM solutions means you get the exact bearing you need, with the assurance of consistent quality. Rich stock levels ensure most orders ship within 24-48 hours, minimizing downtime for your operation.
Whether you need Bdl 30308, 30309, 30310 or other tapered roller bearing models, we can provide pricing and availability quickly. Simply share the bearing model, dimensions, quantity, and destination, and our team will respond with a detailed quote. With our broad product range and stock availability, the sooner you confirm your requirements, the sooner we can get your bearings on the way.
Q: Do you supply bearings from other brands besides those listed?
A: Yes, we support inquiries for all major international and domestic brands. We can source bearings according to your specified brand or model requirements.
Q: How can I confirm if this bearing fits my transmission?
A: Provide your equipment’s make, model, or the bearing’s critical dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the 30308/30309/30310 series.
Q: What is your warranty policy for these bearings?
A: We offer a warranty against manufacturing defects. The specific duration and terms are detailed in each sales contract, with replacement or refund available for verified quality issues.
Q: What is the minimum order quantity for these tapered roller bearings?
A: We accommodate low minimum order quantities, including single-unit purchases for maintenance needs, as well as large volume orders for production.
Q: How long does shipping take, and what methods are available?
A: In-stock bearings ship within 1-2 business days. Shipping options include express courier (3-5 days), air freight (5-7 days), and sea freight (20-30 days), depending on your location and urgency.
Q: Can you produce custom bearings to specific designs?
A: Yes, we offer OEM/ODM services. Provide your technical drawings or specifications, and we
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Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.
Performance Metrics
35%
Failures Prevented
70%
Downtime Reduction
25+
Years Experience
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78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.
Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Long-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.
Free samples available for orders over $50K
Validated against your KPIs before full production commitment.
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Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.
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No. 377 Bansongyuan Road, Huangpu District, Shanghai, China
Free Sample Program
Orders over $50K qualify for free product samples
Test against your KPIs before full production commitment. Ask our engineers for details.
Regarding: Bdl 30308 30309 30310 Tapered Roller Bearing for Transmission
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