High Precision Cylindrical Roller Bearing N309 Nu309 NF309 Nj309 Nup309

Product Specifications

Application Suitability

Struggling with Cylindrical Roller Bearing Selection? Here’s What You Need

Finding the right cylindrical roller bearing for your equipment can be challenging. Mismatched dimensions lead to installation delays, while low-quality bearings often fail prematurely, causing costly downtime. With so many models like N309, Nu309, and Nj309 available, even experienced buyers struggle to identify the exact replacement quickly.

High Precision Cylindrical Roller Bearings Built for Reliability

Our High Precision Cylindrical Roller Bearings, including models N309, Nu309, NF309, Nj309, and Nup309, address these challenges head-on. Manufactured under ISO 9001 standards, these bearings meet strict precision ratings from P0 to P2, ensuring consistent performance in critical applications. With a separated structure design, they simplify installation and maintenance—ideal for industrial gearboxes and automotive transmissions where radial load capacity is essential.

Optimized Performance in Demanding Conditions

These cylindrical roller bearings excel in high-load, high-speed environments. Their single-row design delivers superior radial load handling, making them suitable for machinery in steel mills, construction equipment, and conveyor systems. The open seal type allows for flexible lubrication with oil, grease, or dry operation, adapting to diverse operating conditions without compromising durability.

Key Engineering Features That Impact Performance

The bearing steel construction ensures excellent surface hardness and wear resistance, critical for extending service life in heavy-duty applications. Precision ratings (P0-P2) guarantee tight dimensional tolerances, reducing vibration and noise in precision machinery. The separated inner and outer rings enable easy mounting and dismounting, a valuable feature during maintenance shutdowns. With outer dimensions ranging from 35mm to 400mm, these bearings fit a wide range of standard equipment specifications, simplifying replacement sourcing.

Why Choosing the Right Bearing Lowers Total Costs

Investing in high-precision cylindrical roller bearings reduces long-term operational costs. Inferior bearings with poor material quality or imprecise dimensions often cause early failure, leading to unplanned downtime, repair expenses, and potential damage to adjacent components. Our bearings, built to international standards, minimize these risks by maintaining consistent performance under load. By selecting the correct model—whether N309 for general industrial use or Nup309 for axial positioning—you ensure optimal equipment efficiency and lower total cost of ownership.

Quality You Can Trust in Every Bearing

Packaging & Shipping

• Packaged in cartons with pallet options for bulk orders
• Available from stock for prompt delivery
• Flexible shipping via courier, air, or sea freight
• Low minimum order quantity supported for small-scale needs

Get a Quote for Your Cylindrical Roller Bearing Needs

Whether you need a single N309 bearing or bulk quantities of Nu309 or Nj309, we can provide competitive pricing and fast delivery. Simply share the model number, dimensions (d x D x B), and required quantity, and our team will respond with a tailored quote. The sooner you confirm your order, the sooner we can arrange shipment to keep your operations running smoothly.

Frequently Asked Questions