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
7215HG1Q25J84
75.000 mm
130.000 mm
25.000 mm
7216CG1Q16J74
80.000 mm
140.000 mm
26.000 mm
7217CG1Q16J74
85.000 mm
150.000 mm
28.000 mm
7217CG1Q21J74
85.000 mm
150.000 mm
28.000 mm
7218CG1Q16J74
90.000 mm
160.000 mm
30.000 mm
7218CG1Q21J74
90.000 mm
160.000 mm
30.000 mm
7220CG1Q16J74
100.000 mm
180.000 mm
34.000 mm
7220HG1Q16J74
100.000 mm
180.000 mm
34.000 mm
CH7007CVQ16J74
35.000 mm
62.000 mm
14.000 mm
CH7013CVQ16J74
65.000 mm
100.000 mm
18.000 mm
7205HG1Q16J74
25.000 mm
52.000 mm
15.000 mm
7211HG1Q16J74
55.000 mm
100.000 mm
21.000 mm
7205HG1Q16J84
25.000 mm
52.000 mm
15.000 mm
7212HG1Q16J74
60.000 mm
110.000 mm
22.000 mm
7205HG1Q21J74
25.000 mm
52.000 mm
15.000 mm
7213CG1Q16J74
65.000 mm
120.000 mm
23.000 mm
7206CG1Q16J74
30.000 mm
62.000 mm
16.000 mm
7213CG1Q16J84
65.000 mm
120.000 mm
23.000 mm
7206CG1Q16J84
30.000 mm
62.000 mm
16.000 mm
7206HG1Q16J74
30.000 mm
62.000 mm
16.000 mm