Product Specifications
| Parameter |
Details |
| Model NO. |
N321em |
| Outer Dimension |
35mm-180mm |
| Material |
Bearing Steel |
| Spherical |
Non-Aligning Bearings |
| Load Direction |
Radial Bearing |
| Separated |
Separated |
| Product Name |
Cylindrical Roller Bearing |
| Bore Size |
15-90 mm |
| Structure |
Cylindrical |
| Lubrication |
Grease or Oil |
| Precision Rating |
P0 P6 P5 P4 P2 |
| Vibration |
Z1V1 Z2V2 Z3V3 |
| Service |
OEM ODM |
| Transport Package |
Carton Pallet |
| Specification |
105*225*49mm |
| Origin |
Japan |
| HS Code |
8482500090 |
| Production Capacity |
100000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Printing Equipment, Reducers |
| Auto Manufacturing |
Transmission Systems, Gearboxes |
| Agricultural Machinery |
Harvesters, Tractors |
| New Energy |
Wind Turbines, Photovoltaic Equipment |
| Construction |
Excavators, Heavy Load Machinery |
Prevent Costly Downtime with Precision N321em Cylindrical Roller Bearing for Industrial Machinery
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failure. When low-quality bearings wear prematurely, production lines halt, maintenance costs rise, and deadlines are missed. Sourcing reliable bearings with the right precision grade and quick delivery often feels like navigating a maze of inconsistent suppliers and minimum order requirements.
Engineered for Reliable Performance in Critical Machinery
Our Cylindrical Roller Bearing N321em is designed to address these challenges, offering P0-P4 precision ratings to meet the demands of industrial machinery. As an integrated manufacturer with ISO9001 and ISO14001 certifications, we ensure consistent quality through rigorous R&D and QC processes. Whether your application requires standard bearings or custom OEM/ODM solutions, our 1pc MOQ for standard items and 3-5 day sample lead time provide the flexibility to keep your operations running smoothly.
Optimal Performance in High-Demand Industrial Environments
This cylindrical roller bearing excels in radial load applications, making it ideal for machine tools, printing presses, and reducers where precision and durability are critical. Its separated structure allows for easy mounting and dismounting, simplifying maintenance procedures. With vibration grades Z1V1 to Z3V3, it operates quietly even in high-speed industrial settings, reducing noise pollution and improving workplace conditions.
Key Technical Features That Enhance Machinery Efficiency
The N321em bearing's precision rating directly impacts machine performance—P4 precision ensures minimal runout, critical for high-speed spindles in CNC machines. Its bearing steel construction provides excellent wear resistance, extending service life in heavy-load applications. The ability to use either grease or oil lubrication allows adaptation to various operating temperatures and speeds, while the 105*225*49mm specification offers a balance of load capacity and compact design. These features combine to deliver consistent performance under the demanding conditions of industrial manufacturing.
Invest in Quality to Reduce Long-Term Costs
Choosing genuine, high-precision bearings like the N321em ultimately lowers total operational costs. Inferior bearings may have lower upfront prices but often fail prematurely, leading to unplanned downtime, expensive repairs, and potential damage to other machinery components. Our bearings meet international industry standards, supported by a 12-month global warranty, ensuring reliability and peace of mind. By investing in quality, you avoid the hidden costs of frequent replacements and production interruptions.
Why Global Buyers Choose Saifan Bearings
With over 18 years of experience serving buyers across Europe, America, Southeast Asia, and the Middle East, we've built a reputation for stability and competitiveness. Our full R&D capabilities and in-house QC lab ensure each bearing meets strict quality criteria before shipment. We offer free technical guidance to help you select the right bearing for your application, and our defect replacement policy demonstrates confidence in our products. With bulk delivery times of 5-15 days and multiple payment options including T/T, credit card, and Alibaba trade assurance, we make international procurement straightforward and secure.
Packaging & Shipping
- Secure carton and pallet packaging to prevent damage during transit
- Sample lead time of 3-5 days for urgent evaluation needs
- Bulk delivery within 5-15 days from order confirmation
- Flexible shipping options including express, air, and sea freight
- 1pc minimum order quantity for standard items, supporting both maintenance and small-batch production
Get Your N321em Bearing Shipped Fast
Don't let bearing issues slow down your production. Whether you need a single replacement bearing or bulk order for your manufacturing line, we're ready to fulfill your requirements. The sooner you contact us, the sooner we can get your machinery back to optimal performance.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, we supply authentic bearings and provide full traceability documentation for all products.
Q: How can I confirm if the N321em bearing fits my equipment?
A: Provide your equipment model or specific operating conditions, and our technical team will verify compatibility and provide guidance.
Q: What warranty coverage do you offer?
A: We provide a 12-month global warranty, including free defect replacement or refund for manufacturing issues.
Q: What is the minimum order quantity?
A: Standard items have a 1pc MOQ, making us ideal for emergency repairs and small-scale needs.
Q: How quickly can you ship the N321em bearing?
A: Samples ship within 3-5 days, and bulk orders are delivered in 5-15 days depending on quantity and destination.
Q: What payment methods do you accept?
A: We accept T/T, credit card, and Alibaba trade assurance for secure international transactions.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we'll respond within 24 hours.
