Single Row Radial Ball Bearings – 8000, 87000, 88000, WC8000, WC8800 Series

NTN Product Introduction

**NTN Single Row Radial Deep Groove Ball Bearings: Precision, Durability, and Versatility for Demanding Applications**

NTN Corporation, a global leader in bearing technology, offers an extensive range of high-performance **single row radial deep groove ball bearings**, including the **8000, 87000, 88000, WC8000, and WC8800 series**. Engineered for reliability and efficiency, these bearings are designed to handle both radial and moderate axial loads, making them indispensable in industrial machinery, automotive systems, and precision equipment. With advanced materials, precision manufacturing, and optimized internal geometries, NTN’s deep groove ball bearings deliver superior performance, extended service life, and reduced maintenance requirements.

### **Technical Features & Design Advantages**
NTN’s deep groove ball bearings are characterized by their **robust construction, high-speed capability, and low friction operation**. Key features include:

– **Optimized Raceway & Groove Design**: The deep groove geometry ensures smooth load distribution, minimizing stress concentrations and enhancing fatigue resistance.
– **High-Grade Steel & Heat Treatment**: Manufactured from premium bearing steel and subjected to advanced heat treatment processes, these bearings achieve exceptional hardness and wear resistance.
– **Precision Grinding & Low Noise Operation**: Tight tolerances and fine surface finishes reduce vibration and noise, making them ideal for electric motors, gearboxes, and precision instruments.
– **Versatile Sealing & Shielding Options**: Bearings in the **WC8000 and WC8800 series** feature integrated seals or shields to prevent contamination and retain lubrication, extending operational life in harsh environments.
– **Enhanced Load Capacity**: The **87000 and 88000 series** incorporate reinforced designs for higher radial load support, suitable for heavy-duty industrial applications.

### **Performance Benefits**
– **High-Speed Efficiency**: Low friction and optimized internal clearances enable stable operation at elevated speeds, critical for automotive and spindle applications.
– **Reduced Energy Consumption**: Advanced lubrication and sealing technologies minimize drag, improving energy efficiency in electric vehicles and industrial machinery.
– **Extended Service Life**: Superior materials and precision engineering reduce wear, lowering total cost of ownership through reduced downtime and replacement frequency.

### **Typical Applications**
NTN’s deep groove ball bearings are widely used across industries, including:
– **Automotive Systems**: Alternators, water pumps, transmission components, and wheel hubs.
– **Industrial Machinery**: Pumps, compressors, conveyors, and electric motors.
– **Precision Equipment**: Medical devices, robotics, and aerospace actuators.

With a reputation for innovation and reliability, NTN’s **8000, 87000, 88000, WC8000, and WC8800 series** bearings provide engineers and manufacturers with a trusted solution for demanding motion control challenges. Whether in high-speed automotive applications or heavy industrial environments, these bearings deliver consistent performance, durability, and efficiency.

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Part Number d D Be Bi r Mass
WC88511C3
55.000 mm
100.000 mm
27.000 mm
31.000 mm
1.500 mm
WC88603
17.000 mm
47.000 mm
16.000 mm
18.000 mm
1.500 mm
WC88603C3
17.000 mm
47.000 mm
16.000 mm
18.000 mm
1.500 mm
WC88604
20.000 mm
52.000 mm
19.000 mm
23.000 mm
1.500 mm
WC88604C3
20.000 mm
52.000 mm
19.000 mm
23.000 mm
1.500 mm
WC88605
25.000 mm
62.000 mm
21.000 mm
25.000 mm
1.500 mm
WC88605C3
25.000 mm
62.000 mm
21.000 mm
25.000 mm
1.500 mm
WC88511
55.000 mm
100.000 mm
27.000 mm
31.000 mm
1.500 mm
WC88503C3
17.000 mm
40.000 mm
14.288 mm
16.601 mm
0.600 mm
WC88504
20.000 mm
47.000 mm
15.875 mm
17.750 mm
1.000 mm
WC88504C3
20.000 mm
47.000 mm
15.875 mm
17.750 mm
1.000 mm
WC88505
25.000 mm
52.000 mm
15.875 mm
16.749 mm
1.000 mm
WC88505C3
25.000 mm
52.000 mm
15.875 mm
16.749 mm
1.000 mm
WC88506
30.000 mm
62.000 mm
20.000 mm
24.000 mm
1.000 mm
WC88506C3
30.000 mm
62.000 mm
20.000 mm
24.000 mm
1.000 mm
WC88507
35.000 mm
72.000 mm
21.000 mm
25.000 mm
1.000 mm
WC88507C3
35.000 mm
72.000 mm
21.000 mm
25.000 mm
1.000 mm
WC88508
40.000 mm
80.000 mm
21.000 mm
27.000 mm
1.000 mm
WC88508C3
40.000 mm
80.000 mm
21.000 mm
27.000 mm
1.000 mm
WC88501
12.000 mm
32.000 mm
12.700 mm
15.400 mm
0.600 mm