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 |
| Specification |
As Your Request |
| Trademark |
zhaoyun |
| Origin |
Jiangsu China |
| HS Code |
8482800000 |
| Production Capacity |
1000000 |
Application Industries
| Industry |
Typical Equipment |
| Construction Machinery |
Excavators, Loaders, Bulldozers |
| Mining |
Crushers, Conveyors, Mining Drills |
| Steel |
Rolling Mills, Continuous Casters |
| Heavy Machinery |
Industrial Gearboxes, Press Machines |
Minimize Downtime with NNU4920 B/Sp C3 W33 Double Row Cylindrical Roller Bearing for Heavy Machinery
Heavy machinery operators know the cost of unexpected downtime—each hour of halted production erodes profits and delays project timelines. A common culprit? Bearings that fail prematurely due to poor quality or incorrect specifications. Sourcing reliable bearings often means coordinating with multiple suppliers, each with different lead times and quality standards, complicating procurement and increasing the risk of mismatched components.
Engineered for Heavy-Duty Performance, Delivered When You Need It
The NNU4920 B/Sp C3 W33 Double Row Cylindrical Roller Bearing addresses these challenges with precision engineering tailored for heavy machinery. As an official authorized distributor of SKF & Timken, we ensure every bearing meets strict ISO 9001 quality standards. Our large centralized inventory means this critical component is ready for immediate dispatch, eliminating long lead times that stall maintenance and production schedules.
Optimal Performance in Demanding Work Environments
Designed for applications involving heavy radial and axial loads, this double row cylindrical roller bearing excels in high-torque scenarios common in construction machinery, mining equipment, and steel production lines. Its separated inner and outer rings allow for easy mounting and dismounting, simplifying maintenance even in tight spaces. The C3 clearance ensures proper operation under thermal expansion, a key consideration in continuous-duty machinery where temperature fluctuations are inevitable.
Technical Features That Ensure Reliability
The bearing’s 60-64 HRC hardness rating guarantees resistance to wear and deformation under heavy loads, extending service life in abrasive environments. Available with brass or steel cages, it offers flexibility to match specific application requirements—brass cages provide superior strength for high-speed operations, while steel cages offer enhanced durability in harsh conditions. Vibration grades Z1V1 to Z3V3 allow customization based on noise and precision needs, ensuring smooth operation in sensitive equipment.
Why Authentic Bearings Matter for Total Cost of Ownership
Choosing genuine bearings over counterfeit alternatives directly impacts your bottom line. Counterfeit bearings often fail within months, leading to unplanned shutdowns, costly repairs, and potential damage to connected components. In contrast, our bearings undergo rigorous quality inspection, from material selection to final packaging, ensuring consistent performance and reducing the risk of premature failure. The initial investment in authentic bearings translates to lower total ownership costs by minimizing downtime and extending maintenance intervals.
Your Trusted Partner for Industrial Bearings
With over 1,200 clients across 55+ countries, we’ve built a reputation for reliability in the industrial bearing distribution sector. Our dual-brand authorization ensures access to comprehensive product lines, while our cross-brand technical team provides expert support for选型 and application challenges. We simplify procurement with one-stop mixed ordering, allowing you to source all required bearings from a single supplier. Every order includes complete documentation, from quality certificates to export paperwork, ensuring compliance with global project standards.
Packaging & Shipping
- Secure carton pallet packaging to prevent damage during transit
- Stock availability for prompt dispatch within 3-7 business days
- Flexible shipping options including DHL, FedEx, UPS, air, and sea freight
- Real-time logistics tracking for full visibility of your order
- Minimum order quantity of 1 unit, ideal for emergency repairs and small-scale projects
Get Your Heavy Machinery Back to Work
Don’t let bearing issues keep your equipment idle. Whether you need a single replacement bearing or a bulk order for scheduled maintenance, we’re here to help. Send us your bearing designation, application details, and quantity, and our team will provide a tailored quotation within 24 hours—so you can get back to productive operations quickly.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: As an official authorized distributor, all our bearings come with complete traceability documentation, ensuring they meet original manufacturer standards.
Q: How can I confirm if this bearing fits my equipment?
A: Provide your equipment model or specific operating parameters, and our technical team will verify compatibility and offer选型 support at no extra cost.
Q: What is your warranty policy?
A: We stand by the quality of our products. Any bearing with manufacturing defects is eligible for replacement under our warranty, aligned with原厂 standards.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, making us suitable for both emergency repairs and large-scale procurement.
Q: How long does shipping take?
A: In-stock bearings are shipped within 3-7 business days. We offer multiple logistics options to meet your timeline requirements, including expedited services.
Q: How can I verify the authenticity of the bearing?
A: Each bearing comes with manufacturer-specific packaging and labeling. We provide certification documents and can guide you through verification steps using official brand resources.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
