Multi-Row Machline Angular Contact Ball Bearings

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

NTN Corporation, a global leader in bearing technology, delivers superior performance with its advanced range of **Angular Contact Ball Bearings**, including the high-precision **Machline** series and **Multi-Row Machline** configurations. Designed to meet the rigorous demands of industrial machinery, automotive systems, and precision equipment, NTN’s angular contact ball bearings excel in applications requiring high-speed operation, axial and radial load capacity, and exceptional accuracy.

### **Technical Features & Design Advantages**
NTN’s **Precision Angular Contact Ball Bearings** are engineered with optimized contact angles (typically 15°, 25°, or 40°) to support combined loads while maintaining rigidity. Key features include:
– **High-Speed Capability**: Precision-ground raceways and high-quality steel reduce friction and heat generation, enabling stable performance at elevated RPMs.
– **Enhanced Load Distribution**: The **Machline** series incorporates multi-row designs (e.g., duplex or quadruplex arrangements) to handle higher axial and moment loads in compact spaces.
– **Superior Materials & Coatings**: Advanced heat treatment processes and specialty coatings (such as NTN’s proprietary surface treatments) extend bearing life under harsh conditions, including contamination or marginal lubrication.
– **Pre-Greased & Sealed Options**: Available with shielded or sealed configurations to protect against debris, making them ideal for automotive wheel hubs, machine tool spindles, and robotics.

### **Performance Benefits**
NTN’s angular contact bearings are synonymous with **durability, precision, and efficiency**:
– **Reduced Vibration & Noise**: Precision tolerances (ABEC-3/P4 or higher) ensure smooth rotation, critical for CNC machinery and electric vehicle drivetrains.
– **Extended Service Life**: Optimized internal geometries minimize stress concentrations, while advanced lubrication technologies reduce wear.
– **Custom Configurations**: NTN offers tailored solutions, including hybrid ceramic bearings (steel races with ceramic balls) for extreme-speed applications.

### **Typical Applications**
These bearings are indispensable in sectors demanding reliability under dynamic loads:
– **Industrial Machinery**: Machine tool spindles, robotics, and high-speed pumps.
– **Automotive Systems**: Wheel bearings, turbochargers, and transmission components.
– **Aerospace & Precision Equipment**: Gyroscopes, medical devices, and semiconductor manufacturing tools.

For engineers seeking bearings that combine **precision, load capacity, and longevity**, NTN’s **Angular Contact Ball Bearings** and **Multi-Row Machline** series represent the pinnacle of innovation. Whether in high-speed automation or heavy-duty automotive applications, NTN’s solutions are built to outperform.

*Explore NTN’s full catalog to find the optimal bearing for your technical requirements.*

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Part Number d D B Mass
7207HG1Q16J74
35.000 mm
72.000 mm
17.000 mm
7208HG1Q15J74
40.000 mm
80.000 mm
18.000 mm
7209CG1Q16J84
45.000 mm
85.000 mm
19.000 mm
7209HG1Q16J74
45.000 mm
85.000 mm
19.000 mm
7210CG1Q16J74
50.000 mm
90.000 mm
20.000 mm
7210CG1Q16J84
50.000 mm
90.000 mm
20.000 mm
7210HG1Q16J74
50.000 mm
90.000 mm
20.000 mm
7211CG1Q16J74
55.000 mm
100.000 mm
21.000 mm
7205HG1Q16J74
25.000 mm
52.000 mm
15.000 mm
7211HG1Q16J74
55.000 mm
100.000 mm
21.000 mm
71908HVQ16J74
40.000 mm
62.000 mm
12.000 mm
71908HVQ16J84
40.000 mm
62.000 mm
12.000 mm
71908HVQ16J94
40.000 mm
62.000 mm
12.000 mm
71909HVQ21J74
45.000 mm
68.000 mm
12.000 mm
71910HVQ16J74
50.000 mm
72.000 mm
12.000 mm
71910HVQ16J84
50.000 mm
72.000 mm
12.000 mm
71911HVQ21J74
55.000 mm
80.000 mm
13.000 mm
71912CVQ21J74
60.000 mm
85.000 mm
13.000 mm
71912HVQ16J74
60.000 mm
85.000 mm
13.000 mm
71914CVQ16J74
70.000 mm
100.000 mm
16.000 mm