Product Specifications
| Parameter |
Details |
| Model NO. |
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 |
| Transport Package |
Carton Pallet |
| HS Code |
8482800000 |
Application Industries
| Industry |
Typical Equipment |
| Construction Machinery |
Excavators, Loaders, Bulldozers |
| Mining |
Crushers, Conveyors, Drill Rigs |
| Steel & Metallurgy |
Rolling Mills, Continuous Casters |
| Machine Tools |
CNC Machines, Spindles, Lathes |
| Industrial Machinery |
Gearboxes, Electric Motors, Pumps |
Minimize Downtime with NNU4944 B/Sp C3 W33 Double Row Cylindrical Roller Bearing for Industrial Machinery
Industrial operations face critical disruptions when bearings fail prematurely—costing thousands in lost production and emergency repairs. Sourcing reliable double row cylindrical roller bearings often means navigating multiple suppliers, inconsistent quality standards, and long lead times that delay maintenance. For heavy-duty machinery in mining, construction, and steel industries, choosing the wrong bearing can escalate operational risks and increase total costs.
Double Row Cylindrical Roller Bearings Engineered for Heavy-Duty Performance
The NNU4944 B/Sp C3 W33 Double Row Cylindrical Roller Bearing addresses these challenges with precision engineering and reliable supply. As an official distributor of SKF & Timken, we ensure authentic, industrial-grade bearings that meet ISO 9001 quality standards. Our large centralized inventory means this C3 clearance bearing is available for immediate dispatch, supporting urgent maintenance needs in gearboxes, rolling mills, and heavy machinery.
Optimal Performance in Demanding Industrial Environments
Designed for medium and large machinery (120-190mm outer dimension), this bearing excels in high-load applications with axial forces. Its separated design allows easy mounting and dismounting, critical for maintenance efficiency in mining conveyors and construction equipment. The W33 designation indicates a lubrication groove and three holes in the outer ring, ensuring consistent lubrication even in dusty or high-temperature industrial settings—reducing friction and extending service life.
Technical Features That Ensure Reliability
The bearing’s 60-64 HRC hardness provides exceptional wear resistance, crucial for handling continuous operation in steel plant rolling mills. Available with brass or steel cages, it balances durability and weight: brass cages offer stability at high speeds, while steel cages suit heavy shock loads in mining crushers. Clearance options (C0 to C5) allow customization for thermal expansion needs—C3 clearance is ideal for applications with moderate temperature variations, preventing seizure and maintaining precision under load.
Why Authentic Bearings Matter for Total Cost of Ownership
Counterfeit cylindrical roller bearings may cut initial costs but often fail within months, causing unplanned downtime. Genuine bearings like the NNU4944 B/Sp C3 W33 deliver predictable performance, reducing maintenance frequency and avoiding secondary damage to shafts or housings. Our unified quality inspection system ensures each bearing meets original specifications, backed by complete documentation—critical for compliance in large engineering projects and EPC contracts.
Your Trusted Partner for Industrial Bearing Solutions
With 1,200+ clients across 55+ countries, we bring dual-brand expertise (SKF precision and Timken heavy-duty advantages) to your procurement process. Our cross-brand technical team provides free选型 support, ensuring you get the right bearing for your equipment. As a one-stop supplier, we handle mixed orders from both brands, consolidating delivery to reduce logistics complexity. Every bearing comes with official authorization documents, traceable to the original manufacturer—no hidden risks, just reliable performance.
Packaging & Shipping
- Secure carton pallet packaging with protective inserts to prevent damage during transit
- 现货 available for dispatch within 3-7 business days
- Global logistics options including DHL, FedEx, UPS, air, and sea freight
- Real-time tracking provided for all shipments
- Minimum order quantity of 1 piece, supporting emergency repairs and small-batch requirements
Get Your NNU4944 Bearing Shipped Today
Don’t let equipment downtime erode your productivity. Whether you need a single replacement bearing or a bulk order for scheduled maintenance, our streamlined process ensures fast quotes and delivery. Send us your bearing designation, application details, and quantity—our team will confirm compatibility and provide a competitive quote within 24 hours.
Frequently Asked Questions
Q: Are these genuine double row cylindrical roller bearings?
A: Yes, we are official authorized distributors of SKF & Timken, and all products are traceable to the original manufacturer with complete authorization documentation.
Q: How do I confirm if the NNU4944 B/Sp C3 W33 is compatible with my equipment?
A: Provide your equipment model or operating parameters (load, speed, temperature), and our technical team will verify compatibility and recommend the correct specifications.
Q: What is your warranty policy for this bearing?
A: We adhere to the original manufacturer’s warranty standards, covering manufacturing defects with unconditional replacement or refund.
Q: What is the minimum order quantity for this bearing?
A: We accept orders starting from 1 piece, supporting both emergency repairs and small-scale procurement needs.
Q: How long does shipping take to [my country]?
A: For in-stock items, delivery takes 3-7 business days via express carriers (DHL/FedEx/UPS). Sea freight options are available for bulk orders with longer lead times.
Q: How can I verify the authenticity of the bearing upon receipt?
A: Each bearing includes original packaging with防伪 labels and laser markings. We also provide certification documents for cross-verification on the manufacturer’s official website.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
