Single Row Machline Angular Contact Ball Bearings

**NTN Precision Angular Contact Ball Bearings: Engineered for High-Performance Applications**

NTN is a globally recognized leader in bearing technology, delivering precision-engineered solutions for demanding industrial, automotive, and precision equipment applications. Among its extensive portfolio, NTN’s **Angular Contact Ball Bearings**, particularly the **Machline Single Row Angular Contact Ball Bearings**, stand out for their superior design, reliability, and performance in high-speed, high-load environments.

### **Technical Features & Design Advantages**
NTN’s **Precision Angular Contact Ball Bearings** are engineered to accommodate combined radial and axial loads, making them ideal for applications requiring high rigidity and accuracy. The **Machline series** incorporates advanced design features, including:

– **Optimized Contact Angle (15°, 25°, 30°, or 40°)** – Enables efficient handling of axial and radial loads in a single direction, with higher angles providing greater axial load capacity.
– **High-Precision Grinding & Super-Finished Raceways** – Ensures smooth operation, reduced friction, and extended service life in high-speed applications.
– **Premium Steel or Hybrid Ceramic Options** – Standard bearings use high-grade steel for durability, while hybrid versions (ceramic balls with steel races) offer enhanced speed capability and reduced heat generation.
– **Pre-Load & Clearance Adjustments** – Available in different clearance grades (C0, C2, C3) to match application requirements, minimizing vibration and improving positional accuracy.
– **Special Cage Designs (Steel, Brass, or Polymer)** – Enhances lubrication retention, reduces wear, and maintains stability under extreme conditions.

### **Performance Benefits**
NTN’s **Machline Angular Contact Ball Bearings** deliver key advantages in critical applications:

– **High-Speed Capability** – Precision-balanced components minimize centrifugal forces, allowing stable operation in machine tool spindles and turbochargers.
– **Enhanced Rigidity & Accuracy** – Ideal for CNC machinery, robotics, and precision gearboxes where minimal deflection is crucial.
– **Reduced Friction & Heat Generation** – Advanced lubrication technologies and surface treatments improve efficiency in automotive transmissions and electric vehicle motors.
– **Long Service Life** – Robust construction and contamination-resistant designs ensure reliability in harsh environments.

### **Typical Applications**
These bearings are widely used in industries requiring precision and durability:

– **Industrial Machinery:** CNC spindles, grinding machines, and robotic arms.
– **Automotive Systems:** Wheel hubs, turbochargers, electric motor shafts, and transmission systems.
– **Aerospace & Defense:** Gyroscopes, actuator mechanisms, and helicopter rotor assemblies.
– **Energy & Heavy Equipment:** Wind turbine pitch controls, pump systems, and compressor units.

NTN’s **Precision Angular Contact Ball Bearings** combine cutting-edge engineering with rigorous quality control, ensuring optimal performance in the most demanding applications. Whether in high-speed automation, automotive drivetrains, or precision instruments, NTN’s Machline series provides the reliability and efficiency needed for peak operational performance.

For industries where precision, speed, and load capacity are non-negotiable, NTN’s bearings deliver unmatched performance—proving why they are trusted by engineers worldwide.

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Part Number d D B Mass
7218CG1
90.000 mm
160.000 mm
30.000 mm
7218CG1UJ74
90.000 mm
160.000 mm
30.000 mm
7218HG1
90.000 mm
160.000 mm
30.000 mm
7218HG1UJ74
90.000 mm
160.000 mm
30.000 mm
7220CG1
100.000 mm
180.000 mm
34.000 mm
7220CG1UJ74
100.000 mm
180.000 mm
34.000 mm
7220HG1
100.000 mm
180.000 mm
34.000 mm
7222CG1
110.000 mm
200.000 mm
38.000 mm
7222CG1UJ74
110.000 mm
200.000 mm
38.000 mm
7222HG1
110.000 mm
200.000 mm
38.000 mm
7211HG1UJ74
55.000 mm
100.000 mm
21.000 mm
7211HG1UJ84
55.000 mm
100.000 mm
21.000 mm
7212CG1
60.000 mm
110.000 mm
22.000 mm
7212CG1UJ74
60.000 mm
110.000 mm
22.000 mm
7212HG1
60.000 mm
110.000 mm
22.000 mm
7212HG1UJ74
60.000 mm
110.000 mm
22.000 mm
7212HG1UJ84
60.000 mm
110.000 mm
22.000 mm
7213CG1
65.000 mm
120.000 mm
23.000 mm
7213CG1UJ74
65.000 mm
120.000 mm
23.000 mm
7213CG1UJ84
65.000 mm
120.000 mm
23.000 mm
7213HG1
65.000 mm
120.000 mm
23.000 mm
7213HG1UJ74
65.000 mm
120.000 mm
23.000 mm
7213HG1UJ84
65.000 mm
120.000 mm
23.000 mm
7214CG1
70.000 mm
125.000 mm
24.000 mm