Consultation
Technical needs assessment
Ensure peak CNC machining precision with High Precision SKF Cylindrical Roller Bearings – designed to deliver consistent performance in critical industrial applications. These瑞典原产N309EM, N310EM, and N311EM models feature P4 precision rating and separated inner/outer rings for easy installation and maintenance, reducing unplanned downtime in high-precision setups.
| Parameter | Details |
|---|---|
| Model NO. | N309EM, N310EM, N311EM |
| 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 |
| Specification | 45*100*25mm (N309EM) |
| Trademark | SKF |
| Origin | Sweden |
| HS Code | 8482500090 |
| Industry | Typical Equipment |
|---|---|
| Manufacturing | CNC Machine Tools, Spindles, Gearboxes |
| Industrial Automation | Robotics, Conveyor Systems, Precision Actuators |
| Semiconductor Manufacturing | Wafer Handling Equipment, Lithography Systems |
| Medical Equipment | Imaging Machines, Precision Diagnostics |
CNC machine operators know the cost of unexpected spindle failure—unplanned downtime eats into production schedules, and cheap replacement bearings often fail within months. Sourcing authentic high-precision bearings from multiple suppliers wastes valuable time, while inconsistent quality standards create hidden risks for your equipment’s performance.
Our High Precision SKF Sweden N309em N310em N311em Cylindrical Roller Bearings solve these challenges. As an officially authorized SKF distributor, we maintain ready stock of P4/P2 precision grade bearings, ensuring you get authentic components within days, not weeks. Each bearing undergoes standardized precision testing before shipment, guaranteeing it meets the strict quality requirements of CNC machine tool applications.
These cylindrical roller bearings excel in the demanding conditions of CNC machine tools, where radial loads and high rotational speeds require consistent performance. The separated design allows for easy mounting and dismounting, simplifying maintenance, while the open seal type minimizes friction in high-speed spindle applications. Whether used in vertical machining centers or horizontal lathes, these bearings deliver the stability needed for tight-tolerance manufacturing.
The precision rating of P4 ensures minimal runout and vibration, critical for maintaining surface finish quality in CNC operations. The single-row cylindrical structure provides optimal radial load capacity, supporting heavy cutting forces without deformation. Constructed from high-grade bearing steel, these components resist wear even under continuous operation, extending maintenance intervals. The separated inner and outer rings allow for precise axial adjustment, ensuring proper preload and maximizing bearing life in high-speed applications.
Counterfeit bearings may offer lower upfront prices, but they often fail prematurely due to substandard materials and manufacturing. This leads to repeated replacements, increased labor costs, and unplanned production stops that far exceed the initial savings. Our genuine SKF bearings, backed by ISO 9001 and DIN standards, provide consistent performance over extended service life, reducing overall maintenance expenses and improving machine reliability.
Our reputation is built on delivering authentic products and专业 engineering support. As an officially authorized SKF distributor, every bearing can be traced to the original manufacturing batch, with complete certification documentation provided on request. Our senior application engineering team, with years of on-site project experience, offers personalized bearing selection and working condition matching to ensure optimal performance. With clients in over 45 countries, including Germany, Switzerland, and the United States, we have established a global network for reliable delivery and support.
Don’t let bearing issues disrupt your production schedule. Send us your required model (N309EM, N310EM, or N311EM), application details, and quantity, and our team will provide a quote within one working day. With our ready stock and professional logistics solutions, you can have your bearings delivered quickly to minimize downtime.
Q: Are these genuine SKF bearings?
A: Yes, we are an officially authorized SKF distributor, and all products come with full authorization certificates and traceable documentation to ensure authenticity.
Q: How do I confirm the correct bearing型号 for my CNC machine?
A: Our senior engineering team can assist with bearing selection. Provide your machine model or operating parameters (load, speed, temperature), and we’ll verify the optimal bearing型号 for your application.
Q: What is your warranty policy?
A: We offer the standard SKF manufacturer’s warranty, covering manufacturing defects. If a bearing fails due to material or production issues, we provide a full replacement or refund.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, making us ideal for emergency maintenance or small-batch requirements.
Q: How long does shipping take?
A: In-stock bearings are shipped within 3-7 working days via your preferred logistics method (DHL, FedEx, UPS, air, or sea freight).
Q: How can I verify the authenticity of the bearings?
A: Each bearing comes with SKF’s original packaging and laser-etched markings. We also provide certification documents and can guide you through SKF’s official verification process using product serial numbers.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we'll respond within 24 hours.
Our 5-step process ensures every order is engineered, validated, and supported for optimal performance.
Technical needs assessment
Custom specifications
Free samples for $50k+
Pre-shipment inspection
On-site & predictive
Our certified engineers respond within 24 hours with detailed technical specifications, pricing, and lead time information.