**NSK Super Precision Bearings: Engineered for Unmatched Accuracy and Performance**
In the world of high-precision motion and control, NSK’s **Super Precision Bearings** stand as a benchmark for reliability, rigidity, and ultra-low friction performance. Among these, the **Super Precision Cylindrical Roller Bearings** and **Double Row Cylindrical Roller Bearings** are engineered to meet the most demanding applications—delivering exceptional rotational accuracy, high load capacity, and extended service life in industries where precision is non-negotiable.
### **Technical Excellence and Design Innovations**
NSK’s **Super Precision Cylindrical Roller Bearings** are designed with optimized roller profiles, precision-ground raceways, and advanced materials to minimize vibration, heat generation, and wear. These bearings feature:
– **Ultra-High Precision (P4, P2, or higher grades)** – Ensuring minimal runout and consistent performance in high-speed applications.
– **Enhanced Load Capacity** – Radial load handling is maximized through superior roller-to-raceway contact, making them ideal for heavy-duty machining and automation.
– **Low Friction & High-Speed Capability** – Special cage designs (e.g., brass or polymer cages) reduce friction, allowing for smoother operation at elevated speeds.
For applications requiring even greater rigidity and load distribution, NSK’s **Double Row Cylindrical Roller Bearings** provide:
– **Increased Radial Stiffness** – Two rows of rollers enhance stability, critical for machine tool spindles and high-precision gearboxes.
– **Optimized Internal Geometry** – Precision alignment minimizes deflection under heavy loads, maintaining accuracy in dynamic conditions.
– **Sealed or Open Configurations** – Options for grease lubrication or integrated sealing solutions extend maintenance intervals in harsh environments.
### **Performance Advantages for Critical Applications**
NSK’s super precision cylindrical roller bearings excel in environments where even micron-level deviations can impact performance. Key advantages include:
– **Extended Service Life** – Advanced heat treatment and surface finishing techniques reduce wear, ensuring longevity even under continuous high-load operation.
– **Reduced Noise & Vibration** – Critical for semiconductor manufacturing, medical imaging equipment, and high-end robotics.
– **Thermal Stability** – Engineered to maintain dimensional stability under thermal fluctuations, crucial for CNC machining and aerospace components.
### **Typical Applications Across Industries**
These bearings are indispensable in sectors demanding the highest levels of precision and durability:
– **Industrial Machinery** – Machine tool spindles, robotic arms, and printing presses rely on their rigidity and speed capabilities.
– **Automotive Systems** – High-performance transmissions, electric vehicle (EV) drivetrains, and turbochargers benefit from their low friction and high-load support.
– **Precision Equipment** – Medical imaging devices, optical alignment systems, and semiconductor wafer handling require the near-zero runout provided by NSK’s super precision designs.
By combining cutting-edge engineering with decades of expertise, NSK’s **Super Precision Cylindrical Roller Bearings** and **Double Row Cylindrical Roller Bearings** set the standard for motion control in the most demanding applications—ensuring efficiency, accuracy, and reliability where it matters most.
Designations | Nominal Dimensions | Basic Load Ratings | Speeds Limiting Speeds |
|||||
---|---|---|---|---|---|---|---|---|
d mm |
D mm |
B mm |
r(min.) mm |
Cr kN |
C0r kN |
Grease min-1 |
Oil (Oil-air) min-1 |
|
30 |
55 |
19 |
1 |
18.3 |
18.6 |
21000 |
27900 |
|
45 |
75 |
23 |
1 |
57.5 |
65.5 |
14200 |
16700 |
|
60 |
95 |
26 |
1.1 |
84.5 |
106 |
9700 |
11700 |
|
30 |
55 |
19 |
1 |
18.3 |
18.6 |
21000 |
27900 |
|
45 |
75 |
23 |
1 |
57.5 |
65.5 |
14200 |
16700 |
|
60 |
95 |
26 |
1.1 |
84.5 |
106 |
9700 |
11700 |
|
35 |
62 |
20 |
1 |
39.5 |
50.0 |
15500 |
18600 |
|
45 |
75 |
23 |
1 |
34.0 |
32.5 |
14900 |
19800 |
|
35 |
62 |
20 |
1 |
39.5 |
50.0 |
15500 |
18600 |
|
45 |
75 |
23 |
1 |
34.0 |
32.5 |
14900 |
19800 |