Cylindrical Roller Bearings NU series

Product Introduction

The Cylindrical Roller Bearings NU series are specially engineered to handle heavy radial loads at high speeds with superior performance and extended operational life. Designed with a separable inner and outer ring, the NU series CRB is highly versatile and suitable for applications requiring high precision and rigidity. These bearings are commonly adopted in gearboxes, electric motors, construction machinery, and other heavy-duty equipment where radial load-bearing capacity and operational stability are paramount.

Product Advantage

1. Superior Radial Load Capacity
The NU series Cylindrical Roller Bearings are designed with a larger contact area between rollers and raceways, enabling the bearing to support heavy radial loads efficiently. This makes them ideal for high-load applications such as gearboxes and construction machinery. The contact design minimizes stress concentration, extending bearing life.

2. High-Speed Performance with Minimal Friction
WGB’s optimized cage design and surface finish reduce internal friction, supporting higher rotational speeds. In applications like electronic motors bearing or high-speed gear reducers, this feature ensures smoother operation and reduced energy consumption, directly enhancing equipment efficiency.

3. Dimensional Precision and Rigidity
With high-precision machining and strict tolerance control, NU series bearings maintain excellent rigidity. This is crucial in construction machinery bearing applications where shock loads and vibrations are frequent. The rigid support structure reduces deflection and ensures long-term stability.

4. Interchangeable and Easy Assembly
The separable structure of the inner and outer rings allows for easier mounting and dismounting, especially in applications like industrial pumps bearing. This feature helps reduce machine downtime and maintenance costs, improving productivity in industrial operations.

5. Enhanced Heat Dissipation and Long Service Life
NU series bearings use specially formulated grease and steel to reduce temperature rise during operation. With proven test data showing a 15% lower average operating temperature than competitor bearings, the product offers superior durability and extended lubrication intervals.

6. Proven Quality and Reliability
All WGB CRB products undergo rigorous quality testing, including ISO 9001 quality management, statistical process control, and dynamic performance verification. Customers from heavy industries trust our bearings for consistent reliability in high-demand environments.

Product Uses

1. Construction Machinery
In construction machinery such as excavators, loaders, and cranes, NU series bearings ensure maximum load capacity and resistance to shock and vibration. Compared to traditional bearings, our CRB reduces maintenance frequency by over 20%, helping construction equipment maintain high uptime.

2. Gearboxes and Reducers
Gearbox and reducer systems demand high precision and load stability. The Cylindrical Roller Bearings NU series supports the rotational elements with minimal friction and backlash, reducing mechanical losses and extending component life even in continuous operations.

3. Electronic Motors
For electronic motors, high-speed operation and thermal management are critical. WGB’s NU series bearings minimize internal heat generation and friction, improving motor efficiency and preventing premature wear—ideal for HVAC systems, servo motors, and robotics.

4. Industrial Pumps
In sectors like chemical processing, water treatment, and oil & gas, industrial pumps bearing must handle radial loads under harsh conditions. WGB’s CRB features corrosion-resistant coatings and precision-ground components to withstand aggressive fluids and minimize vibration.

5. Heavy-Duty Manufacturing Equipment
For automated production lines, metal processing, or textile machinery, our bearings provide long-term operational reliability with reduced downtime. Customization is available to meet specific speed, load, or temperature requirements in demanding industrial environments.

FAQ

Q1: What makes the NU series different from other cylindrical roller bearings?
The NU series features separable inner and outer rings, optimized for radial loads only. This design facilitates easier installation and removal, especially in restricted spaces.

Q2: Can these bearings be used in axial load applications?
No. The NU series supports only radial loads. For axial loads, other bearing types such as NJ or NUP series should be considered.

Q3: Are customized sizes or materials available?
Yes. WGB offers customization in cage materials, special coatings, and heat treatments to meet specific application needs.

Q4: How often should the bearings be lubricated?
With high-quality grease and optimal operating conditions, lubrication intervals can be extended up to 25% longer than standard bearings. For extreme environments, consult WGB’s technical support for tailored guidance.

Q5: What certifications do these bearings meet?
All WGB CRB products, including the NU series, are manufactured under ISO 9001 quality management systems and meet or exceed relevant international standards.