Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | NF309EM |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Radial Bearing |
| Separated | Separated |
| Product Name | Cylindrical Roller Bearing |
| Structure | Cylindrical |
| Seals Type | Open |
| Lubricate | Oil Grease Dry |
| Precision Rating | P0 P6 P5 P4 P2 |
| Number of Row | Single Row |
| Service | OEM ODM |
| Transport Package | Carton Pallet |
| Specification | 45x100x25mm |
| Trademark | SKF NSK NTN TIMKEN KOYO |
| Origin | China |
| HS Code | 8482500090 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Automotive | Transmissions, Gearboxes, Axles |
| Motors | Electric Motors, Generators |
| General Machinery | Pumps, Fans, Compressors |
| Industrial Machinery | Conveyors, Machine Tool Spindles |
Stop Production Delays with Genuine Cylindrical Roller Bearing NF309EM 45x100x25mm
Production lines grinding to a halt due to bearing failures isn’t just inconvenient—it’s costly. Many manufacturers face the double risk of counterfeit bearings causing premature breakdowns and multi-tier distributors stretching delivery times by 30-50%. When your automotive machinery or industrial equipment needs a reliable 45x100x25mm bearing, these delays can derail production schedules and erode profitability.
Genuine NTN Cylindrical Roller Bearing NF309EM – In Stock and Traceable
As an official NTN distributor, we eliminate these pain points with direct access to authentic Cylindrical Roller Bearing NF309EM units. Our WMS real-time inventory system ensures your 45x100x25mm bearing is ready for immediate dispatch, while our ISO 9001 compliant three-level quality inspection guarantees batch consistency. Whether it’s for automotive transmissions or motor applications, we deliver bearings that match your exact specifications without the wait.
Engineered for High-Radial Load Applications
The Cylindrical Roller Bearing NF309EM is designed to excel in high-radial load environments typical of automotive machinery and industrial equipment. Its separated inner and outer rings allow for easy installation and maintenance, while the single-row cylindrical structure provides optimal load distribution. This makes it ideal for continuous operation in gearboxes, electric motors, and conveyors where reliability under constant stress is non-negotiable.
Technical Precision That Drives Performance
Every aspect of the NF309EM Bearing is engineered for performance. The bearing steel construction ensures durability under heavy loads, while precision ratings from P0 to P2 accommodate applications requiring tight tolerances. Its open seal design allows for flexible lubrication options—oil, grease, or dry operation—adapting to diverse working conditions. The 45x100x25mm dimensions balance compactness with load capacity, making it a versatile choice for space-constrained machinery.
Why Authenticity Matters for Your Bottom Line
Counterfeit bearings might seem like a cost-saving shortcut, but they often lead to hidden expenses: unexpected downtime, increased maintenance costs, and potential damage to adjacent components. Our NTN Cylindrical Roller Bearings come with full traceability documentation, eliminating customs clearance issues and quality disputes. By investing in genuine parts, you reduce the risk of premature failures and ensure longer equipment lifespan—ultimately lowering your total cost of ownership.
Why Global Manufacturers Trust Our Supply Chain
Our 10+ years of technical expertise and service across 50+ countries make us a reliable partner for automotive OEMs and machinery manufacturers. We provide: official NTN authorization with complete product traceability; dedicated inventory reservation for long-term supply agreements; real-time order tracking from warehouse to delivery; and on-demand technical support for installation and failure analysis. Our door-to-door logistics network ensures your 45x100x25mm Cylindrical Roller Bearing arrives when and where you need it.
Packaging & Shipping
- Original manufacturer packaging with product specifications and traceability documentation
- Carton and pallet packaging for secure transportation of bulk orders
- 3-7 business day dispatch for in-stock items
- Global delivery options including DHL, FedEx, UPS, air freight, and sea freight
- Real-time logistics tracking provided for all shipments
- Flexible order quantities with no minimum purchase requirement
Get Your NF309EM Bearing Shipped Today
Don’t let bearing procurement slow down your production. Send us your order details—including quantity and application requirements—and our team will issue a formal quotation within 24 hours. With our ready inventory and global logistics, you can minimize downtime and keep your operations running smoothly.
Frequently Asked Questions
Q: Are these genuine NTN bearings?
A: Yes, we are an official NTN authorized distributor. Every Cylindrical Roller Bearing NF309EM comes with complete traceability documentation to verify authenticity.
Q: How do I confirm if this bearing fits my equipment?
A: Provide your equipment model or working condition parameters, and our technical team will verify compatibility with the 45x100x25mm NF309EM specification.
Q: What is your warranty policy?
A: We adhere to NTN’s original manufacturer warranty standards, covering manufacturing defects with unconditional replacement or refund.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, supporting both emergency maintenance and bulk OEM requirements.
Q: How long does shipping take to my country?
A: In-stock items ship within 3-7 business days. Delivery time depends on your location, with express options available for urgent needs.
Q: How can I verify the bearing’s authenticity upon receipt?
A: Each bearing includes NTN’s original packaging with security features. We also provide traceability certificates and brand authorization documents for verification.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.







