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, Mining Drills |
| Steel |
Rolling Mills, Continuous Casters |
Minimize Downtime with Nu321-Ec J Double Row Cylindrical Roller Bearing for Heavy Machinery
Heavy machinery operators know the cost of unexpected downtime—hours of lost productivity, expensive repairs, and missed project deadlines. When bearings fail prematurely, the root cause often traces back to incorrect clearance or substandard materials. Sourcing reliable C3 clearance bearings for critical equipment like crushers and rolling mills can mean the difference between smooth operation and costly interruptions.
Nu321-Ec J Bearing: Engineered for Heavy-Duty Performance
The Nu321-Ec J Double Row Cylindrical Roller Bearing with C3 clearance is designed to handle the rigorous demands of heavy machinery. As an official distributor of leading bearing brands, we maintain large centralized inventory to ensure this critical component is available when you need it. Whether your application involves high radial loads in mining conveyors or shock loads in construction equipment, this bearing delivers consistent performance with minimal maintenance.
Optimal Performance in Demanding Conditions
Double row cylindrical roller bearings excel in applications requiring high radial load capacity and moderate axial load handling. The Nu321-Ec J model, with its C3 clearance, is particularly suited for heavy machinery operating in environments with temperature variations, as the increased internal clearance compensates for thermal expansion. This makes it ideal for continuous operation in steel mills, mining sites, and large-scale construction projects where equipment reliability is non-negotiable.
Key Technical Features That Matter
The 60-64 HRC hardness of the bearing steel ensures exceptional wear resistance, extending service life even under heavy loads. The separated design allows for easy mounting and dismounting, simplifying maintenance procedures and reducing downtime during repairs. Available with brass or steel cages, the bearing can be tailored to specific speed requirements—brass cages offer stability at higher speeds, while steel cages provide durability in harsh environments. The Z1V1 to Z3V3 vibration grades ensure smooth operation, minimizing noise and reducing stress on connected components.
Why Authenticity Matters for Heavy Machinery Bearings
Counterfeit bearings may offer lower upfront costs, but they often fail prematurely due to substandard materials and imprecise manufacturing. A single bearing failure in a critical piece of equipment can lead to secondary damage, unplanned shutdowns, and safety risks. Our Double Row Cylindrical Roller Bearings meet strict ISO 9001 quality standards, with each unit undergoing thorough inspection before shipment. By choosing genuine components, you reduce the risk of unexpected failures and lower your total cost of ownership over time.
Your Trusted Partner for Heavy Machinery Bearings
With over 1,200 clients across 55+ countries, we bring extensive experience in serving heavy industries. As an authorized distributor, we provide complete traceability for every bearing, ensuring you receive authentic products backed by manufacturer warranties. Our cross-brand technical team can assist with选型 and application support, while our unified quality inspection system guarantees consistent performance. We offer one-stop mixed procurement, allowing you to source all your bearing needs from a single supplier, reducing administrative complexity and ensuring timely delivery.
Packaging & Shipping
- Secure carton pallet packaging to prevent damage during transit
- 3-7 business days delivery for in-stock items
- Flexible shipping options including DHL, FedEx, UPS, air, and sea freight
- Real-time logistics tracking provided for all orders
- Minimum order quantity of 1 piece, supporting emergency maintenance needs
Get Your Nu321-Ec J Bearing Today
Don’t let equipment downtime impact your project timelines. The Nu321-Ec J Double Row Cylindrical Roller Bearing with C3 clearance is in stock and ready to ship. Send us your requirements, and our team will confirm availability and provide a detailed quote within one business day. The sooner you secure your bearing, the sooner you can get back to full operational capacity.
Frequently Asked Questions
Q: Are these bearings genuine?
A: Yes, we are an official authorized distributor, and all products can be traced to the original manufacturer with complete documentation.
Q: How do I confirm if this bearing fits my equipment?
A: Provide your equipment model or specific application parameters, and our technical team will verify compatibility at no cost.
Q: What is the warranty policy?
A: All bearings come with the manufacturer’s standard warranty, covering manufacturing defects with unconditional replacement.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, supporting emergency maintenance and small-scale requirements.
Q: How long does shipping take?
A: In-stock items are shipped within 3-7 business days, with flexible logistics options to meet your timeline.
Q: How can I verify the authenticity of the bearing?
A: Each bearing comes with original packaging and documentation. We can provide verification support through manufacturer channels upon request.
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