Double Row Angular Contact Ball Bearings

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

NTN is a globally recognized leader in bearing technology, delivering high-performance solutions for industrial machinery, automotive systems, and precision equipment. Among its extensive product range, NTN’s **Angular Contact Ball Bearings** and **Double Row Angular Contact Ball Bearings** stand out for their ability to handle combined radial and axial loads with exceptional accuracy, durability, and efficiency. These bearings are engineered to meet the rigorous demands of high-speed operations, heavy-load conditions, and applications requiring precise rotational control.

### **Technical Features & Design Advantages**
NTN’s **Single Row Angular Contact Ball Bearings** are designed with a contact angle (typically 15°, 25°, 30°, or 40°) that enables them to support significant axial loads in one direction while accommodating moderate radial loads. The optimized raceway geometry and high-quality steel construction minimize friction, reduce heat generation, and extend service life. These bearings are available in various configurations, including:
– **Standard (non-separable) designs** for general applications
– **Split inner ring designs** for easier assembly in complex machinery
– **High-speed variants** with ceramic hybrid options for reduced centrifugal forces

For applications requiring higher load capacity and rigidity, NTN’s **Double Row Angular Contact Ball Bearings** provide a compact solution. They combine two single-row bearings into a single unit, offering enhanced axial and radial load support in both directions. Their stiffened internal structure ensures stability in precision machinery, while advanced sealing options improve contamination resistance.

### **Performance Benefits**
– **Superior Load Handling:** The angular contact design efficiently manages combined loads, making these bearings ideal for applications with significant thrust forces.
– **High-Speed Capability:** Precision-ground raceways and advanced cage designs (e.g., pressed steel or polyamide) ensure smooth operation at elevated speeds.
– **Enhanced Rigidity & Accuracy:** Double-row variants reduce deflection under heavy loads, critical for machine tools and robotics.
– **Extended Service Life:** NTN’s proprietary heat treatment and surface finishing technologies minimize wear and fatigue.

### **Typical Applications**
NTN’s angular contact ball bearings are widely used in:
– **Industrial Machinery:** CNC spindles, pumps, compressors, and gearboxes
– **Automotive Systems:** Wheel hubs, transmissions, and electric vehicle motors
– **Precision Equipment:** Robotics, medical devices, and aerospace actuators

By combining advanced engineering with rigorous quality control, NTN ensures that its angular contact ball bearings deliver unmatched reliability, even in the most demanding environments. Whether optimizing industrial productivity or enhancing automotive performance, NTN’s solutions provide the precision and durability needed for superior operational efficiency.

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Part Number d D B r Mass
5205KLEC3
25.000 mm
52.000 mm
20.638 mm
1.016 mm
5204CZZC3
20.000 mm
47.000 mm
20.600 mm
1.000 mm
0.156 kg
5205NR
25.000 mm
52.000 mm
20.600 mm
1.000 mm
0.175 kg
5204EEG15
20.000 mm
47.000 mm
20.600 mm
1.000 mm
5205T2ZZ
25.000 mm
52.000 mm
20.600 mm
1.000 mm
5204LLU
20.000 mm
47.000 mm
20.600 mm
1.000 mm
5203CLLU
17.000 mm
40.000 mm
17.500 mm
0.600 mm
0.097 kg
5203CZZ
17.000 mm
40.000 mm
17.500 mm
0.600 mm
0.097 kg
5203EEG15
17.000 mm
40.000 mm
17.500 mm
0.600 mm
5203LMLD
17.000 mm
40.000 mm
17.500 mm
0.600 mm
5203NR
17.000 mm
40.000 mm
17.500 mm
0.600 mm
0.099 kg
5203NRC3
17.000 mm
40.000 mm
17.500 mm
0.600 mm
0.099 kg
5203NRZZG15
17.000 mm
40.000 mm
17.500 mm
0.600 mm
0.100 kg
5202CZZ
15.000 mm
35.000 mm
15.900 mm
0.600 mm
0.068 kg
5203ZZG15
17.000 mm
40.000 mm
17.500 mm
0.600 mm
5202EEG15
15.000 mm
35.000 mm
15.900 mm
0.600 mm
5203ZZNRC3
17.000 mm
40.000 mm
17.500 mm
0.600 mm
5202EEH2000B
15.000 mm
35.000 mm
15.900 mm
0.600 mm
5204
20.000 mm
47.000 mm
20.600 mm
1.000 mm
0.156 kg
5202LLUH2000B
15.000 mm
35.000 mm
15.900 mm
0.600 mm