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 Industry | Heavy load equipment, conveyor systems, mining machinery |
Need Reliable Heavy Load Bearings for Mining? NNU4930, NNU4932, NNU4934 Deliver
Mining operations face constant challenges with bearing failures—premature wear from heavy loads, misalignment issues causing downtime, and difficulty finding replacements that match original specifications. When equipment stops, production halts, and every minute counts. As a supplier with extensive experience in industrial bearings, we understand the critical need for reliable components in harsh mining environments.
Engineered for Mining’s Toughest Conditions
Our Double Row Cylindrical Roller Bearings (NNU4930, NNU4932, NNU4934) are built to address these challenges. As a professional bearing supplier covering a full range of products, including heavy load bearings, we ensure these mining bearings meet rigorous standards. The separated design allows for easy installation and maintenance, a key advantage in remote mining sites where quick repairs are essential. Whether used in crushers, mills, or conveyor systems, these bearings provide the stability needed for continuous operation.
Optimal Performance in Heavy Load Scenarios
Designed specifically for the mining industry, these double row cylindrical roller bearings excel under extreme axial loads and moderate radial loads. Operating in environments with dust, vibration, and variable temperatures, they maintain performance thanks to their robust construction. The 60-64 HRC hardness ensures resistance to wear, while clearance options (C0-C5) allow customization to specific application requirements—critical for preventing overheating and extending service life.
Key Engineering Features for Mining Reliability
The choice of cage material directly impacts bearing performance in mining applications. Brass cages offer high strength and temperature resistance, ideal for high-speed operations, while steel cages provide durability in heavy shock load conditions. The non-aligning design requires precise shaft alignment, which, when properly installed, reduces stress on the bearing and surrounding components. Vibration grades Z1V1 to Z3V3 allow selection based on noise and precision needs, ensuring compatibility with sensitive equipment. These details combine to create a bearing that minimizes maintenance and maximizes uptime.
Why Choosing the Right Bearing Lowers Total Costs
Selecting a heavy load bearing that matches mining equipment requirements is more than a purchase—it’s an investment in operational efficiency. Inferior bearings may cost less upfront but lead to frequent replacements, unplanned downtime, and potential damage to expensive machinery. Our double row cylindrical roller bearings, with their严格的 quality control and material testing, reduce these risks. By following industry standards for load capacity and fatigue life, they provide predictable performance, lowering long-term maintenance costs and improving overall equipment reliability.
Quality Backed by Rigorous Standards
We adhere to ISO 9001 certified production and inspection processes, ensuring every bearing meets specified dimensions and hardness requirements. Raw materials undergo thorough testing before manufacturing, and finished products are checked for precision and surface quality. A warranty covers manufacturing defects, providing peace of mind for your investment. With access to a wide range of brands and models, we can source or supply bearings that meet your exact specifications, whether you need standard or custom solutions.
Packaging & Shipping
- Packaged in cartons with pallets for secure transport
- Available from stock for urgent delivery needs
- Flexible shipping options including express, air, and sea freight
- Low minimum order quantity supported, from small batches to large-scale procurement
Get a Quote for Your Mining Bearing Needs
Whether you need NNU4930, NNU4932, NNU4934, or other mining bearings, provide us with your required model, dimensions, and quantity. Our team will promptly offer competitive pricing and delivery timelines. With our extensive inventory and global supply chain, we ensure you get the right bearings when you need them.
Frequently Asked Questions
Q: Do you supply bearings from other brands or models?
A: Yes, we support inquiries for all bearing brands and models, supplying according to your specified requirements.
Q: How can I confirm if this bearing fits my mining equipment?
A: Provide the equipment model, required dimensions (d x D x B), and load conditions. Our technical team will verify compatibility.
Q: What is your warranty policy for these bearings?
A: We provide a warranty against manufacturing defects; specific terms are outlined in the purchase contract.
Q: What is the minimum order quantity?
A: We accept low minimum orders, including small batch purchases for testing or maintenance needs.
Q: How long does shipping take?
A: In-stock items ship immediately; delivery time depends on your location and chosen shipping method (express, air, or sea).
Q: Can you provide custom (OEM/ODM) bearings?
A: Yes, we support customization based on drawings, specifications, or sample 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.
