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 |
| Manufacturing |
CNC Machine Tools, Precision Spindles, Lathes, Milling Machines |
| Industrial Machinery |
Grinders, Boring Machines, Machining Centers |
Eliminate Spindle Downtime with Nu320 EC J/C3 Double Row Cylindrical Roller Bearing
Machine tool operators know the frustration: unexpected spindle failure halts production, while sourcing replacement bearings means coordinating with multiple suppliers and verifying quality across different brands. When precision matters, even small delays in getting the right bearing can cost thousands in lost productivity.
Authorized Quality Bearings for Critical Machine Tool Applications
As an official distributor for leading bearing brands, we stock the Nu320 EC J/C3 Double Row Cylindrical Roller Bearing specifically engineered for machine tool spindle applications. Our large centralized inventory ensures this high precision cylindrical roller bearing is available for immediate delivery, eliminating the wait times that plague emergency repairs.
Optimal Performance in High-Speed Spindle Environments
This separated cylindrical roller bearing excels in the demanding conditions of machine tool spindles, where it must handle both radial loads and high rotational speeds. The C3 clearance design provides the necessary operating room for thermal expansion during continuous operation, while the robust cage options (brass or steel) maintain roller alignment even under dynamic stress. For precision machining centers and CNC lathes, choosing the right bearing directly impacts surface finish quality and tool life.
Technical Features That Ensure Reliable Spindle Operation
The Nu320 EC J/C3 bearing’s 60-64 HRC hardness rating guarantees resistance to wear under heavy loads, a critical factor for maintaining dimensional accuracy in metalworking applications. Its non-aligning design requires precise mounting, making it ideal for rigid spindle assemblies where shaft misalignment is minimal. The Z1V1 to Z3V3 vibration classes allow matching to specific noise and smoothness requirements, from general purpose machining to high-precision grinding operations. When combined with proper lubrication, these features extend bearing service life by reducing internal friction and heat generation.
Why Genuine Bearings Matter for Your Machine Tools
Using non-genuine bearings in machine tool spindles often leads to premature failure, with hidden costs that far exceed initial savings. Poorly manufactured bearings may have inconsistent clearance tolerances, leading to vibration, reduced machining accuracy, and increased energy consumption. In contrast, our bearings undergo strict ISO 9001 quality inspection, ensuring each unit meets the exact specifications required for reliable spindle performance. The true cost of counterfeit bearings includes not just replacement parts, but also scrapped workpieces, unplanned downtime, and accelerated wear on connected components.
Your Trusted Partner for Industrial Bearing Solutions
With official authorization from top bearing brands, we provide complete traceability for every Nu320 EC J/C3 bearing we supply, including full documentation for compliance in large-scale manufacturing projects. Our cross-brand technical team offers free application support, helping you confirm bearing suitability for specific spindle models and operating conditions. Serving over 1,200 clients across 55+ countries, we’ve built our reputation on consistent quality and reliable delivery—whether you need a single emergency replacement or a bulk order for production lines. Every bearing leaves our facility after thorough inspection, ensuring it meets the same standards required by major equipment manufacturers.
Packaging & Shipping
- Secure carton pallet packaging with protective internal cushioning
- 现货 available for delivery within 3-7 working days
- Global logistics options including DHL, FedEx, UPS, air freight, and sea freight
- Real-time tracking number provided once shipment is dispatched
- Minimum order quantity of 1 piece, supporting both emergency repairs and scheduled maintenance
Get Your Machine Tool Spindle Back to Work
Don’t let spindle downtime erode your production targets. The Nu320 EC J/C3 Double Row Cylindrical Roller Bearing is in stock and ready to ship—order today to minimize disruptions to your machining operations. Whether you’re replacing a worn bearing or planning preventive maintenance, our team ensures you get the right part quickly.
Frequently Asked Questions
Q: Are these genuine bearings?
A: Yes, as an official authorized distributor, every bearing we supply is traceable to the original manufacturer with complete documentation and authorization verification.
Q: How do I confirm this bearing fits my machine tool spindle?
A: Provide your machine model or spindle specifications, and our technical team will verify compatibility with the Nu320 EC J/C3 bearing at no cost.
Q: What is your warranty policy?
A: We stand by the manufacturer’s warranty, offering unconditional replacement for any bearings found to have manufacturing defects.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, making us ideal for emergency repair situations where small quantities are needed quickly.
Q: How long does shipping take?
A: In-stock bearings ship within 3-7 working days, with delivery times varying by destination. We offer DHL, FedEx, UPS, air, and sea freight options to match your urgency.
Q: How can I verify the authenticity of the bearing?
A: Each bearing comes with original packaging featuring manufacturer-specific security labels and markings. We also provide full traceability documentation upon request.
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