Heavy Load Double Row Cylindrical Roller Bearing NNU4930 for Mining Machinery with 60-64 HRC Hardness
<p>Ensure your mining machinery operates at peak performance with the <strong>Heavy Load Double Row Cylindrical Roller Bearing NNU4930</strong>, engineered to deliver exceptional durability under extreme conditions. Its 60-64 HRC hardness rating guarantees resistance to wear and deformation, minimizing downtime and extending equipment lifespan in high-stress mining environments.</p><ul><li>Double row design provides superior radial load capacity, ideal for heavy-duty applications like conveyor systems and crushers</li><li>Separated inner and outer rings allow for easy installation and maintenance, reducing service time and operational disruptions</li><li>Precision-crafted with high-grade bearing steel, ensuring consistent performance even in dusty, vibrating work sites</li></ul>
- 100% genuine -- COC & factory certificates available
- In-stock · bulk & small-batch orders accepted
- ISO · DIN · ABMA · JIS compliant
- Full customs clearance documentation provided
Product Details
Full Specifications & Description
Product Specifications
| Parameter | Details |
|---|---|
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Outer Dimension | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Axial Bearing |
| Separated | Separated |
| Clearance | C0 C2 C3 C4 C5 |
| Cage | Brass, Steel |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Hardness | 60-64 HRC |
| HS Code | 8482800000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Mining Machinery | Mining Equipment |
Struggling with Bearing Failures in Mining Machinery? The NNU4930 Heavy Load Double Row Cylindrical Roller Bearing Delivers
Mining operations face constant challenges with equipment downtime caused by bearing failures. When bearings lack sufficient hardness or load capacity, they wear prematurely under heavy loads, leading to costly production interruptions. Sourcing the right replacement bearings can be equally frustrating, with limited availability and uncertainty about compatibility with existing machinery.
Built for Reliable, Long-Term Performance in Mining Environments
The Heavy Load Double Row Cylindrical Roller Bearing NNU4930 addresses these issues directly. With a hardness rating of 60-64 HRC, it provides the durability needed to withstand the rigorous conditions of mining machinery. As a supplier with extensive experience in serving industrial sectors, we offer a comprehensive range of bearings, including this specialized model, ensuring you can find the exact fit for your equipment without multiple sourcing attempts.
Where This Bearing Performs Best
This NNU4930 Cylindrical Roller Bearing excels in applications involving heavy radial and axial loads, typical in mining equipment such as crushers, conveyors, and excavators. Its separated design allows for easy installation and maintenance, even in tight spaces, while the range of clearance options (C0, C2, C3, C4, C5) ensures optimal performance under varying operational conditions. Choosing the correct bearing is critical to minimizing vibration and extending equipment lifespan.
Engineering Details That Matter for Mining Operations
The 60-64 HRC hardness of the bearing steel directly contributes to its wear resistance, reducing the frequency of replacements in abrasive mining environments. The brass or steel cage options provide stability at high speeds, ensuring consistent performance during continuous operation. The non-aligning design, while requiring precise installation, offers superior load distribution compared to aligning bearings in applications with minimal shaft misalignment. Additionally, the Z1V1 to Z3V3 vibration grades allow selection based on noise and precision requirements, ensuring compatibility with sensitive equipment components.
Why Bearing Selection Affects Total Cost in Mining
Opting for a high-quality Mining Machinery Bearing like the NNU4930 may seem like a larger upfront investment, but it significantly reduces long-term costs. Inferior bearings with inadequate hardness often fail prematurely, leading to unplanned downtime, expensive repairs, and potential damage to related machinery parts. By following industry standards for material selection and manufacturing, this bearing ensures predictable performance, allowing for scheduled maintenance and avoiding the hidden costs of frequent replacements. The total cost of ownership is further optimized through our efficient supply chain, which minimizes procurement delays.
Quality You Can Rely On
Our production and inspection processes adhere to ISO 9001 standards, ensuring consistent quality from raw material testing to final product inspection. Each bearing undergoes rigorous checks for dimensions, hardness, and surface treatment to meet specified requirements. We provide a warranty period covering manufacturing defects, with clear terms for退换 or replacement. With access to a wide range of brands and models, we can source bearings according to your exact specifications, whether you need standard or specialized options. Our inventory includes common models, supporting prompt delivery to keep your operations running smoothly.
Packaging & Shipping
- Packaged in cartons with pallets for secure transportation
- Stock availability supports same-day shipping for urgent requirements
- Flexible shipping options including express courier, air freight, and sea freight
- Low minimum order quantity, suitable for both small-scale maintenance and large production runs
Request a Quote for the NNU4930 Bearing
To get started, provide the bearing model, required quantity, and delivery destination. Our team will promptly confirm availability and provide a competitive quote. Whether you need a single replacement or bulk order, we ensure efficient processing to meet your timeline.
Frequently Asked Questions
Q: Do you support procurement of other bearing brands and models?
A: Yes, we offer comprehensive procurement services covering a wide range of international and domestic brands, including SKF, NSK, NTN, Koyo, NACHI, IKO, FAG, Timken, and more. We can source bearings according to your specific brand and model requirements.
Q: How can I confirm if this NNU4930 bearing fits my mining equipment?
A: Please provide your equipment's make, model, and the original bearing dimensions (bore diameter, outer diameter, width). Our technical team will verify compatibility based on these details and assist with selection if needed.
Q: What is your warranty policy for bearings?
A: We provide a warranty covering manufacturing defects. The specific warranty period and terms are detailed in each sales contract, with options for退换 or replacement of products found to have quality issues under normal operating conditions.
Q: What is the minimum order quantity for this bearing?
A: We offer low minimum order quantities, including support for small-batch purchases. This allows for trial orders or emergency replacements without the need for large inventory commitments.
Q: How long does shipping take and what物流 options are available?
A: For in-stock items, we ship the same day. Delivery times vary by destination: express courier typically takes 3-7 days, air freight 5-10 days, and sea freight 20-40 days. We can recommend the most cost-effective option based on your urgency and location.
Q: Do you offer OEM/ODM customization for bearings?
A: Yes, we support custom bearing manufacturing according to your technical drawings, specifications, or samples. This includes options for material selection, cage design, clearance settings, and special surface treatments.
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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Heavy Load Double Row Cylindrical Roller Bearing NNU4930 for Mining Machinery with 60-64 HRC Hardness
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