AC Bearings

**NTN Ball Bearings: Precision Engineered for Performance and Reliability**

NTN Corporation is a globally recognized leader in the design and manufacturing of high-performance rolling bearings, including their renowned **Deep Groove Ball Bearings** and specialized **AC Bearings**. Engineered to deliver exceptional durability, precision, and efficiency, NTN’s ball bearings are trusted across industries—from industrial machinery and automotive systems to precision medical and aerospace equipment.

### **Technical Features & Design Excellence**
NTN’s **Deep Groove Ball Bearings** are designed with a versatile single-row construction, featuring deep raceway grooves that accommodate both radial and axial loads. These bearings are available in open, shielded, or sealed configurations to suit different lubrication and contamination protection needs. Key design elements include:
– **High-Grade Materials**: Manufactured from premium chromium steel or specialty alloys for enhanced wear resistance and fatigue life.
– **Precision Grinding**: Ultra-fine finishing of raceways and balls ensures smooth operation with minimal vibration, critical for high-speed applications.
– **Optimized Internal Geometry**: Advanced curvature and clearance control reduce friction and heat generation, improving energy efficiency.

For demanding applications, NTN’s **AC Bearings** (Angular Contact Ball Bearings) feature a contact angle design that supports combined radial and thrust loads. These bearings are ideal for high-speed operations, with options for single or double-row configurations and matched sets for preload adjustment.

### **Performance Advantages**
NTN bearings excel in performance due to rigorous quality standards and innovative engineering:
– **Extended Service Life**: Superior heat treatment and material purity minimize micropitting and spalling, even under heavy loads.
– **Low Noise & Vibration**: Precision tolerances (ABEC-3 to ABEC-7) make NTN bearings suitable for sensitive applications like electric vehicle motors or CNC spindles.
– **Sealing Solutions**: Integrated seals (LLU, LLB) or shields (ZZ, 2RS) protect against dust and moisture while retaining grease.
– **High-Speed Capability**: Dynamic balancing and advanced cage designs (steel, brass, or polymer) allow stable operation at extreme RPMs.

### **Typical Applications**
NTN’s Deep Groove and AC Bearings are integral to:
– **Automotive Systems**: Wheel hubs, transmissions, alternators, and EV traction motors.
– **Industrial Machinery**: Pumps, compressors, conveyor systems, and robotics.
– **Precision Equipment**: Medical devices, semiconductor manufacturing tools, and aerospace actuators.

Whether for heavy-duty industrial use or high-precision motion control, NTN’s ball bearings combine cutting-edge technology with reliability, ensuring optimal performance in the most challenging environments. Backed by decades of innovation, NTN continues to set benchmarks in bearing technology, delivering solutions that enhance efficiency and reduce total cost of ownership.

For applications demanding uncompromising quality, NTN’s Deep Groove and AC Bearings represent the pinnacle of engineering excellence.

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Part Number d D B r Mass
AC-6006ZZ
30.000 mm
55.000 mm
13.000 mm
1.000 mm
0.109 kg
AC-6005
25.000 mm
47.000 mm
12.000 mm
0.600 mm
0.074 kg
AC-6006ZZC3
30.000 mm
55.000 mm
13.000 mm
1.000 mm
0.109 kg
AC-6005C3
25.000 mm
47.000 mm
12.000 mm
0.600 mm
0.074 kg
AC-6007
35.000 mm
62.000 mm
14.000 mm
1.000 mm
0.151 kg
AC-6005LLB
25.000 mm
47.000 mm
12.000 mm
0.600 mm
0.078 kg
AC-6005LLBC3
25.000 mm
47.000 mm
12.000 mm
0.600 mm
0.078 kg
AC-6005LLU
25.000 mm
47.000 mm
12.000 mm
0.600 mm
0.078 kg
AC-6005LLUC3
25.000 mm
47.000 mm
12.000 mm
0.600 mm
0.078 kg
AC-6005T2X3LLBC3P5
25.000 mm
47.000 mm
12.000 mm
0.600 mm
0.078 kg
AC-6005ZZ
25.000 mm
47.000 mm
12.000 mm
0.600 mm
0.078 kg
AC-6005ZZC3
25.000 mm
47.000 mm
12.000 mm
0.600 mm
0.109 kg
AC-6004C3
20.000 mm
42.000 mm
12.000 mm
0.600 mm
0.066 kg
AC-6002LLBC3
15.000 mm
32.000 mm
9.000 mm
0.300 mm
0.028 kg
AC-6004LLB
20.000 mm
42.000 mm
12.000 mm
0.600 mm
0.066 kg
AC-6002LLU
15.000 mm
32.000 mm
9.000 mm
0.300 mm
0.028 kg
AC-6004LLBC3
20.000 mm
42.000 mm
12.000 mm
0.600 mm
0.066 kg
AC-6002LLUC3
15.000 mm
32.000 mm
9.000 mm
0.300 mm
0.028 kg
AC-6004LLU
20.000 mm
42.000 mm
12.000 mm
0.600 mm
0.066 kg
AC-6002ZZ
15.000 mm
32.000 mm
9.000 mm
0.300 mm
0.030 kg