Multi-Row Angular Contact Ball Bearings

**NTN Angular Contact Ball Bearings: Precision Performance for Demanding Applications**

NTN Corporation, a global leader in bearing technology, offers a comprehensive range of **Angular Contact Ball Bearings** engineered to deliver exceptional precision, durability, and load-bearing performance in high-speed and high-load applications. Designed to accommodate combined radial and axial loads, these bearings are critical components in industrial machinery, automotive systems, and precision equipment where reliability and efficiency are paramount.

### **Technical Features & Design Advantages**
NTN’s **Single Row Angular Contact Ball Bearings** feature a non-separable design with high-precision raceways and optimized contact angles (typically 15°, 25°, 30°, or 40°), enabling them to handle significant axial loads in one direction while supporting moderate radial loads. The bearings are available in **open, shielded, or sealed configurations**, with advanced materials and heat treatments enhancing fatigue resistance and service life.

For applications requiring higher rigidity and load capacity, NTN provides **Matched Bearing Sets**, where two or more single-row bearings are pre-loaded and paired in tandem, back-to-back, or face-to-face arrangements. These sets improve axial and moment load distribution, making them ideal for machine tool spindles, gearboxes, and high-precision rotary systems.

For even greater performance, NTN’s **Multi-Row Angular Contact Ball Bearings** integrate two or more rows of balls into a single unit, significantly increasing load capacity and stiffness while minimizing space requirements. These bearings are commonly used in heavy-duty industrial applications such as rolling mills, large pumps, and wind turbine gearboxes.

### **Performance Benefits**
– **High-Speed Capability:** Optimized internal geometry and premium-grade steel reduce friction and heat generation, allowing stable operation at elevated speeds.
– **Enhanced Rigidity:** Precision-ground raceways and controlled pre-loading minimize deflection, critical for machining accuracy in CNC equipment.
– **Extended Service Life:** Advanced lubrication technologies and corrosion-resistant coatings (e.g., NTN’s proprietary treatments) reduce wear in harsh environments.
– **Customization Options:** NTN offers tailored solutions with special cages (brass, polyamide, or steel), hybrid ceramic balls, or modified internal clearances for specific operating conditions.

### **Typical Applications**
– **Industrial Machinery:** Machine tool spindles, robotic arms, and high-speed compressors.
– **Automotive Systems:** Wheel hubs, turbochargers, and transmission components.
– **Aerospace & Precision Equipment:** Gyroscopes, medical imaging devices, and semiconductor manufacturing tools.

NTN’s Angular Contact Ball Bearings exemplify the company’s commitment to innovation, combining cutting-edge engineering with rigorous quality standards to meet the evolving demands of modern industry. Whether in high-speed automation or heavy-load environments, NTN bearings ensure smooth, efficient, and long-lasting performance.

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Part Number d D B r Mass
7911CDTBT/GLP4
55.000 mm
80.000 mm
13.000 mm
1.000 mm
7003CDBT+10/GLP5
17.000 mm
35.000 mm
10.000 mm
0.300 mm
0.135 kg
7210BT1DBTT/GNP4
50.000 mm
90.000 mm
20.000 mm
1.100 mm
1.864 kg
7008CDBT/GNP4
40.000 mm
68.000 mm
15.000 mm
1.000 mm
0.552 kg
7210T2DBT/GNP5
50.000 mm
90.000 mm
20.000 mm
1.100 mm
1.350 kg
7011DTBT/GNP4
55.000 mm
90.000 mm
18.000 mm
1.100 mm
7908CDTBT/G5P4
40.000 mm
62.000 mm
12.000 mm
0.600 mm
7012UCDTBT/GNP4
60.000 mm
95.000 mm
18.000 mm
1.100 mm
0.596 kg
7908CDTBTUPV2
40.000 mm
62.000 mm
12.000 mm
0.600 mm
7013AEX1DTBTCS02UP
65.000 mm
100.000 mm
18.000 mm
N/A
7013CDTBT+70/G0#01
65.000 mm
100.000 mm
18.000 mm
1.100 mm
7014CDBT/GMP4
70.000 mm
110.000 mm
20.000 mm
1.100 mm
1.758 kg
7016CDBT/GMP4
80.000 mm
125.000 mm
22.000 mm
1.100 mm
2.499 kg
7016CDBT/GNP4
80.000 mm
125.000 mm
22.000 mm
1.100 mm
2.499 kg
7019UDTBT/GMP4
95.000 mm
145.000 mm
24.000 mm
1.500 mm
4.880 kg
7206T2DBT/GNP4
30.000 mm
62.000 mm
16.000 mm
1.000 mm
0.570 kg
7207BT1DBT/GNP4
35.000 mm
72.000 mm
17.000 mm
1.100 mm
0.854 kg
7207T2DBT/GNP4
35.000 mm
72.000 mm
17.000 mm
1.100 mm
0.828 kg
7207T2DBT/GNP5
35.000 mm
72.000 mm
17.000 mm
1.100 mm
0.828 kg
7209BT1DBT/GNP4
45.000 mm
85.000 mm
19.000 mm
1.100 mm
1.230 kg