-- SKF Authorized Engineering Partner
Ensure smooth, reliable performance in your machinery with our high-quality Cylindrical Roller Bearing, designed to minimize downtime and maximize operational efficiency. Ideal for high-load applications, this bearing features precision engineering with Z1V1-Z3V3 vibration grades to reduce noise and extend equipment lifespan, while versatile lubrication options (grease or oil) adapt to your specific working conditions.
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| Parameter | Details |
|---|---|
| Model Number | 306-2Z, 306-2ZNR, 306-Z |
| Specification | 30*72*19mm |
| Lubrication | Grease or Oil |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Trademark | BDL, NTN, NSK, NMB, Koyo, NACHI, Timken |
| Origin | China |
| HS Code | 8482102000 |
| Stock | Rich Stocks |
| Sample | Available |
| Service | OEM, ODM |
| Delivery | by Express, Road, Train, Air, Sea |
| Transport Package | Carton, Pallet |
| on-Time Delivery Rate | 100.0% |
| Response Time | Less Than 0.5h |
| Industry | Typical Applications |
|---|---|
| Automotive | Wheel hubs, transmission systems |
| Industrial Machinery | Conveyor rollers, electric motors |
| Hydraulic Systems | Pump assemblies, cylinder pivot points |
| Automation Equipment | Robotic arms, precision slides |
Finding the right cylindrical roller bearing for your equipment can be a hassle—whether it’s matching the exact model across different brands, ensuring dimensional compatibility, or dealing with unexpected stock shortages. Many buyers face downtime due to incorrect specifications or low-quality bearings that fail prematurely. As a supplier with years of experience in the bearing industry, we understand these challenges firsthand.
This High Quality Cylindrical Roller Bearing addresses common pain points with its adherence to international standards and versatile design. Available in models 306-2Z, 306-2ZNR, and 306-Z, it fits seamlessly into applications requiring reliable radial load support. Our ISO 9001-certified production process ensures each unit meets strict quality criteria, while our extensive inventory means you get the bearings you need without long lead times. Whether used in automotive transmissions or industrial conveyor systems, this bearing delivers consistent performance under varying loads.
Designed to handle radial loads efficiently, this cylindrical roller bearing operates best in machinery where shafts experience moderate to high rotational speeds. Its 30x72x19mm dimensions make it suitable for compact installations, while vibration grades Z1V1 to Z3V3 allow customization based on precision requirements. The option of grease or oil lubrication ensures adaptability to different operating environments, from clean industrial settings to more demanding conditions with temperature variations.
The bearing’s performance is defined by critical engineering details. Its cylindrical roller design distributes load evenly across the raceway, reducing stress concentration and extending service life. The Z-series suffix indicates metal shields that protect internal components from contaminants, lowering maintenance needs in dusty environments. Precision manufacturing ensures tight dimensional tolerances, critical for interchangeability across equipment brands. Additionally, the availability of 2ZNR models with a snap ring groove simplifies axial positioning, a crucial feature in applications with space constraints.
Selecting a high-quality cylindrical roller bearing directly impacts your bottom line. Inferior bearings often fail early due to material inconsistencies, leading to unplanned downtime, replacement costs, and potential damage to adjacent components. This bearing’s robust construction—backed by comprehensive testing for hardness and surface finish—minimizes these risks. By reducing maintenance frequency and extending service intervals, it lowers total cost of ownership over time. Our focus on reliable supply further ensures you avoid production delays caused by part shortages.
Our commitment to quality is embedded in every step of the process. All bearings undergo ISO 9001-compliant production, with raw material inspections and finished product testing for dimensions, hardness, and surface treatment. We stand behind our products with a warranty against manufacturing defects, ensuring peace of mind for your operations. With access to both trusted international brands (NTN, NSK, Koyo, etc.) and our own BDL brand, we can fulfill orders according to your specific quality or budget requirements.
Ready to secure the right cylindrical roller bearing for your application? Provide us with the model number, required quantity, and delivery location, and we’ll respond with a competitive quote within 0.5 hours. Whether you need a specific brand or a custom solution, our team is equipped to handle your request efficiently—no unnecessary delays, just reliable service you can count on.
Q: Do you supply other bearing brands or models besides those listed?
A: Yes, we offer comprehensive procurement services covering all major international and domestic brands, including SKF, FAG, IKO, and more. Simply provide the required model or dimensions for a tailored quote.
Q: How can I confirm if this bearing fits my equipment?
A: Share your equipment’s make, model, or the bearing’s existing dimensions (bore, outer diameter, width), and our technical team will verify compatibility against industry standards.
Q: What is your warranty policy for these bearings?
A: We provide a warranty against manufacturing defects. Specific terms are outlined in each order contract, ensuring coverage for material and workmanship issues.
Q: What is the minimum order quantity for this bearing?
A: We support low minimum order quantities, making it easy to order small batches for testing or maintenance needs, as well as large volumes for production.
Q: How quickly can you ship after order confirmation?
A: In-stock bearings are shipped within 24 hours of order confirmation. For custom or non-stock items, lead times will be provided during the quoting process.
Q: Do you offer OEM or ODM services for bearings?
A: Yes, we provide OEM and ODM services, including custom branding, packaging, and specifications tailored to your unique 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.
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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
24h
Quote Response
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.
Address
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: Nu311em Nup311em High Quality Cylindrical Roller Bearing
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