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
5212
60.000 mm
110.000 mm
36.500 mm
1.500 mm
1.250 kg
5212C3
60.000 mm
110.000 mm
36.500 mm
1.500 mm
1.250 kg
5210NRZZG15
50.000 mm
90.000 mm
30.200 mm
1.100 mm
0.760 kg
5212EEG15
60.000 mm
110.000 mm
36.500 mm
1.500 mm
5210W
50.000 mm
90.000 mm
30.162 mm
1.016 mm
5212KEC3
60.000 mm
110.000 mm
36.513 mm
1.524 mm
5209NR
45.000 mm
85.000 mm
30.200 mm
1.100 mm
0.646 kg
5209SCLLD
45.000 mm
85.000 mm
30.200 mm
1.100 mm
5209T2ZZ
45.000 mm
85.000 mm
30.200 mm
1.100 mm
5209T2ZZNR
45.000 mm
85.000 mm
30.200 mm
1.100 mm
5209WSSLHC3
45.000 mm
85.000 mm
30.162 mm
1.016 mm
5210
50.000 mm
90.000 mm
30.200 mm
1.100 mm
0.689 kg
5210ALLBD1XC2
50.000 mm
90.000 mm
30.200 mm
1.100 mm
5210C3
50.000 mm
90.000 mm
30.200 mm
1.100 mm
0.689 kg
5210CLLMD1XC2
50.000 mm
90.000 mm
30.200 mm
1.100 mm
5210CLLU
50.000 mm
90.000 mm
30.200 mm
1.100 mm
0.735 kg
5209
45.000 mm
85.000 mm
30.200 mm
1.100 mm
0.636 kg
5210CZZ
50.000 mm
90.000 mm
30.200 mm
1.100 mm
0.732 kg
5209C3
45.000 mm
85.000 mm
30.200 mm
1.100 mm
0.636 kg
5210EEG15
50.000 mm
90.000 mm
30.200 mm
1.100 mm