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
7211CG1UJ84
55.000 mm
100.000 mm
21.000 mm
7211HG1
55.000 mm
100.000 mm
21.000 mm
7203HG1UJ74
17.000 mm
40.000 mm
12.000 mm
7204CG1
20.000 mm
47.000 mm
14.000 mm
7204CG1UJ74
20.000 mm
47.000 mm
14.000 mm
7204CG1UJ84
20.000 mm
47.000 mm
14.000 mm
7204HG1
20.000 mm
47.000 mm
14.000 mm
7204HG1UJ84
20.000 mm
47.000 mm
14.000 mm
7205CG1
25.000 mm
52.000 mm
15.000 mm
7205CG1UJ74
25.000 mm
52.000 mm
15.000 mm
7205CG1UJ84
25.000 mm
52.000 mm
15.000 mm
7205HG1
25.000 mm
52.000 mm
15.000 mm
7206CG1
30.000 mm
62.000 mm
16.000 mm
7206CG1UJ74
30.000 mm
62.000 mm
16.000 mm
7206CG1UJ84
30.000 mm
62.000 mm
16.000 mm
7206HG1
30.000 mm
62.000 mm
16.000 mm
7206HG1UJ74
30.000 mm
62.000 mm
16.000 mm
7206HG1UJ84
30.000 mm
62.000 mm
16.000 mm
7207CG1
35.000 mm
72.000 mm
17.000 mm
7207CG1UJ74
35.000 mm
72.000 mm
17.000 mm
7207CG1UJ84
35.000 mm
72.000 mm
17.000 mm
7207HG1
35.000 mm
72.000 mm
17.000 mm
71940HV
200.000 mm
280.000 mm
38.000 mm
71944CV
220.000 mm
300.000 mm
38.000 mm