Koyo 4200–4208 & 4302–4307 Deep Groove Ball Bearings – High-Precision, Factory Direct
Basic Info.
| Inner Diameter | 45 mm |
| Outer Diameter | 68 mm |
| Thickness | 12 mm |
| Model NO. | 4204 4304 |
| Material | Bearing Steel |
| Brand | NTN |
High-precision radial bearing, unseparated single-row design. Manufactured from premium bearing steel for durability and smooth operation. Suitable for general industrial applications. Dimensions: 45×68×12 mm. Complies with HS Code 8482102000.
Basic Info.
- Spherical Roller Bearing
- Taper Roller Bearing
- Alloy Guide Rail
- Thrust Needle Roller Bearing
- Thrust Self-aligning Roller Bearing
- Cylindrical Roller Bearing
- Bearing Block
- Pillow Block Bearing
- Self-Aligning Ball Bearing
- Deep Groove Ball Bearing
- Angular Contact Ball Bearing
- Linear Bearing
- Auto Bearing
- Needle Bearing
- Thrust Ball Bearing
Related Products
Specifications
| Bore Diameter | 45 mm |
| Outer Diameter | 68 mm |
| Width | 12 mm |
| Model NO. | 6210-N |
| Material | Bearing Steel |
| Trademark | NTN |
Description
Precision radial bearing with single row design, unseparated structure for reliable performance. Ideal for industrial applications requiring durability and smooth operation under radial loads.
Specifications
| Bore Diameter | 6201 (12mm) |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration Level | Z1V1, Z2V2, Z3V3 |
| Feature | Long Life, High Speed, Low Noise |
Description
High-quality roller bearing available in rich stock. Suitable for various industrial applications with reliable performance, precision engineering, and durable construction. OEM/ODM service supported.
Specifications
| Bore Diameter | 45mm |
| Outer Diameter | 68mm |
| Width | 12mm |
| Model | 6301 |
| Material | Bearing Steel |
| Trademark | NTN |
Description
Precision radial bearing with single row design, unseparated structure for durability. Ideal for industrial applications requiring reliable performance under radial loads.
Specifications
| Bore Diameter | 8 mm |
| Outer Diameter | 22 mm |
| Width | 7 mm |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
| Certification | ISO9001:2008 |
Description
Precision 608RS deep groove ball bearing with radial load capacity, suitable for OEM/ODM applications. Designed for reliability and long service life in various industrial environments.
Specifications
| Bore Diameter | 120mm |
| Outer Diameter | 170mm |
| Width | 28mm |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
| Origin | Germany, Sweden, Japan |
Description
Precision radial bearing made of high-quality bearing steel. Suitable for heavy-duty industrial applications with reliable performance. Compact design with dimensions 120x170x28mm ensures compatibility in various machinery systems.
Specifications
| Model NO. | 6302 Zz 2RS) |
| Bore Diameter x Outer Diameter x Width | 15*42*13mm |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Sealed Type | Unseparated |
| Origin | Germany, Sweden, Japan |
Description
High-quality radial bearing made of durable bearing steel, ideal for industrial applications requiring reliable performance. Compact design with precise dimensions ensures smooth operation and long service life.
Product Parameters
| Bore Diameter | 25 mm |
| Outer Diameter | 52 mm |
| Width | 42 mm |
| Model NO. | NSK 28bwd03A |
| Precision Rating | P0, P6, P5, P4, P2 |
| Lubrication | Grease or Oil |
Description
This wheel hub bearing is made of high-quality bearing steel, offering long life, low noise, and high-speed performance. Suitable for radial loads, it’s ideal for various industrial and automotive applications with rich stock availability.
Specifications
| Bore Diameter | 120mm |
| Outer Diameter | 170mm |
| Width | 28mm |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
| Origin | Germany, Sweden, Japan |
Description
Premium radial bearing made of high-quality bearing steel. Designed for reliable performance with dimensions of 120x170x28mm. Ideal for industrial applications requiring durable and precision-engineered components.
Specifications
| Bore Diameter | 6303/6201 |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration Level | Z1V1, Z2V2, Z3V3 |
| Feature | Long Life, High Speed, Low Noise |
Description
High-quality roller bearing from top brands (SKF/NTN/NSK/Koyo/NACHI/Timken), made of bearing steel for durability and performance. Suitable for various industrial applications with reliable precision and low noise operation.
Specifications
| Bore Diameter | 25 mm |
| Outer Diameter | 52 mm |
| Width | 42 mm |
| Material | Bearing Steel |
| Precision Rating | P0, P6, P5, P4, P2 |
| Lubrication | Grease or Oil |
Description
High-performance Wheel Hub Bearing with long life, low noise, and high-speed capability. Suitable for radial loads, this precision-engineered bearing ensures reliable operation. Ideal for OEM and ODM applications with rich stock availability and global shipping options.
Specifications
| Bore Diameter | 25 mm |
| Outer Diameter | 52 mm |
| Width | 42 mm |
| Material | Bearing Steel |
| Precision Rating | P0, P6, P5, P4, P2 |
| Feature | Long Life, High Speed, Low Noise |
Description
High-performance wheel hub bearing with radial load design, suitable for high-speed and long-life applications. Made from premium bearing steel with low noise operation and available in high precision grades.
Specifications
| Bore Diameter | 45mm |
| Outer Diameter | 68mm |
| Width | 12mm |
| Model No. | 6305 7/8 72mm 80mm |
| Material | Bearing Steel |
| Origin | Germany, Sweden, Japan |
Description
Premium radial bearing with single row design, made of high-quality bearing steel. Ideal for industrial applications requiring reliable performance and durability. Unseparated construction ensures easy installation and maintenance.

















