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 |
Application Industries
| Industry |
Typical Equipment |
| Construction Machinery |
Excavators, Loaders, Bulldozers |
| Mining |
Crushers, Conveyors, Mining Drills |
| Machine Tools |
CNC Machines, Lathes, Milling Machines |
| Steel |
Rolling Mills, Continuous Casters |
Prevent Costly Downtime with Nu308-Ec J and Nu309-Ec Double Row Cylindrical Roller Bearings
Industrial machinery operators know the frustration of unexpected downtime—especially when it stems from bearing failure. Sourcing reliable replacements often means juggling multiple suppliers, facing long lead times, and worrying about inconsistent quality across brands. For maintenance teams working with construction equipment, mining machinery, or steel production lines, these challenges can derail project timelines and inflate operational costs.
Precision-Engineered Bearings for Critical Machinery Performance
Our Double Row Cylindrical Roller Bearings, including models Nu308-Ec J and Nu309-Ec, are designed to address these pain points. As an official authorized distributor of SKF and Timken, we ensure every bearing meets strict ISO 9001 quality standards. With a large centralized inventory, we can fulfill orders for these precision matching bearings quickly, whether you need a single unit for emergency repairs or bulk quantities for scheduled maintenance. These bearings excel in heavy-duty applications like gearboxes, motor spindles, and conveyors, where reliability under axial loads is non-negotiable.
Optimal Performance in Demanding Industrial Environments
Double Row Cylindrical Roller Bearings are engineered to handle high radial loads and moderate axial loads, making them ideal for machinery operating in harsh conditions. The separated design allows for easy mounting and dismounting, reducing maintenance time during equipment overhauls. Whether your machinery operates in dusty mining sites, high-temperature steel plants, or high-vibration construction environments, these bearings deliver consistent performance with vibration levels rated Z1V1 to Z3V3, ensuring smooth operation and extended equipment life.
Key Technical Features That Maximize Machinery Uptime
The performance of these bearings is defined by critical technical attributes. The cage material—available in brass or steel—provides durability and stability, even at high rotational speeds. Bearing clearance options (C0, C2, C3, C4, C5) allow precise matching to specific operating conditions; for example, C3 clearance is often specified for applications with temperature variations to prevent seizure. With a hardness of 60-64 HRC, the bearing steel construction ensures resistance to wear and deformation under heavy loads. These features work together to minimize premature failure and reduce the need for frequent replacements.
Why Authentic Bearings Matter for Long-Term Cost Control
Choosing genuine Double Row Cylindrical Roller Bearings over counterfeit alternatives directly impacts your total cost of ownership. Counterfeit bearings often fail early, leading to unplanned downtime, expensive repairs, and potential damage to adjacent components. In contrast, our bearings—backed by official authorization—undergo rigorous quality inspections, ensuring they meet the exact specifications required for your machinery. This reliability translates to fewer production interruptions, lower maintenance costs, and a longer service life for your equipment.
Our Commitment to Reliable Bearing Solutions
Customers trust us for six key reasons: official authorization from SKF and Timken, ensuring every product is traceable to authentic sources; a unified ISO 9001 quality inspection system that verifies performance before shipment; one-stop mixed procurement, allowing you to source multiple brands and models through a single supplier; a cross-brand technical team with expertise in industrial applications; large centralized inventory supporting fast delivery; and global logistics capabilities serving 1,200+ clients across 55+ countries. We stand behind our products with comprehensive after-sales support, including assistance with installation and troubleshooting.
Packaging & Shipping
- Secure carton pallet packaging to prevent damage during transit
- Stock availability ensures shipment within 3-7 working days for urgent requirements
- Flexible logistics options including DHL, FedEx, UPS, air freight, and sea freight
- Real-time tracking numbers provided for all shipments
- Minimum order quantity of 1 unit, supporting both emergency repairs and planned procurement
Get Your Nu308-Ec J and Nu309-Ec Bearings Today
Don’t let bearing issues slow down your operations. Send us your exact bearing requirements, including model numbers, application details, and quantity, and our team will provide a quote within one working day. With our large inventory and global delivery network, we can get the right bearings to you when you need them most—minimizing downtime and keeping your machinery running at peak efficiency.
Frequently Asked Questions
Q: Are these bearings genuine and authentic?
A: Yes, as an official authorized distributor of SKF and Timken, we guarantee all products are traceable to authentic supply chains and provide complete authorization documentation upon request.
Q: How can I confirm if the Nu308-Ec J or Nu309-Ec is suitable for my equipment?
A: Our cross-brand technical team can help verify compatibility. Provide your equipment model, operating conditions (load, speed, temperature), and application details for a free选型 recommendation.
Q: What is the warranty policy for these bearings?
A: All bearings come with manufacturer-backed warranty coverage for manufacturing defects. We facilitate direct warranty claims and offer replacement support for qualifying issues.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, making us suitable for both emergency maintenance and large-scale project procurement.
Q: How long does shipping take?
A: In-stock bearings are typically shipped within 3-7 working days. Delivery time depends on your location and chosen logistics method (express, air, or sea freight).
Q: How can I verify the authenticity of the bearings upon receipt?
A: Each bearing is supplied with original packaging and documentation. You can cross-check serial numbers with manufacturer databases, and we provide additional traceability documents upon request.
