Koyo 6203ZNR Deep Groove Ball Bearing 17x40x12mm – High-Precision Factory Direct
Basic Info.
| Model NO. | 6203 ZNR |
| Trademark | KOYO |
| Origin | China |
| HS Code | 8482102000 |
| Transport Package | Standard Industrial Packaging |
Dimensions (mm)
Inner Diameter: 17, Outer Diameter: 40, Thickness: 12
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
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Specifications
| Bore Diameter | 30 mm |
| Outer Diameter | 72 mm |
| Width | 19 mm |
| Seals Type | ZZ 2RS Open |
| Precision Rating | P0, P6, P5, P4 |
| Lubrication | Grease or Oil |
Description
Premium quality deep groove ball bearing with reliable performance. Suitable for various industrial applications requiring high precision and durability. OEM/ODM service available.
Product Parameters
| Bore Diameter (d): | 240mm |
| Outer Diameter (D): | 320mm |
| Width (B): | 38mm |
| Model No.: | 61948/61952/61956/61960-2RS/2Z/M |
| Material: | Bearing Steel |
| Load Direction: | Radial Bearing |
Description
Premium radial bearing made from high-quality bearing steel, ideal for heavy-duty industrial applications. Compact design with precise dimensions ensures reliable performance and durability. Sealed variants available for enhanced protection.
Specifications
| Bore Diameter | 20 mm |
| Outer Diameter | 47 mm |
| Width | 14 mm |
| Model NO. | 6204R |
| Material | Bearing Steel |
| Seals Type | ZZ 2RS Open |
Description
Precision radial bearing with high load capacity, suitable for various industrial applications. Made of high-quality bearing steel with options for grease or oil lubrication.
Specifications
| Bore Diameter | 120mm |
| Outer Diameter | 170mm |
| Width | 28mm |
| Material | Bearing Steel |
| Load Direction | Radial |
| Origin | Germany, Sweden, Japan |
Description
Precision radial bearing with high load capacity. Made of durable bearing steel, suitable for industrial applications requiring reliable performance. Compact design with standard dimensions for easy integration.
Specifications
| Model No. | 6300 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
| Origin | China |
Description
High-speed, low-noise radial bearing with long service life. Made from high-quality bearing steel, suitable for various industrial applications. Available in rich stock for fast delivery by sea or air. Supports OEM/ODM services.
Specifications
| Bore Diameter | 20 mm |
| Outer Diameter | 52 mm |
| Width | 15 mm |
| Seals Type | ZZ 2RS Open |
| Precision Rating | P0, P6, P5, P4 |
| Lubrication | Grease or Oil |
Description
High-quality deep groove ball bearing Model 6304 made of bearing steel, suitable for radial loads with strong durability. Ideal for industrial and mechanical applications requiring reliable performance.
Specifications
| Bore Diameter | 20 mm |
| Outer Diameter | 47 mm |
| Width | 14 mm |
| Seals Type | Zz 2RS Open |
| Precision Rating | P0, P6, P5, P4 |
| Lubrication | Grease or Oil |
Description
High-quality radial bearing made of bearing steel, model 6204, ideal for industrial applications. Features non-aligning design and unseparated structure with reliable vibration performance (Z1V1-Z3V3). Suitable for OEM/ODM services.
Specifications
| Model No. | 6000/6200/6300 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
| Feature | High Speed, Low Noise, Long Life |
Description
High-performance radial bearings with precision grades up to P2, ideal for high-speed and low-noise applications. Made from premium bearing steel, these models (6000/6200/6300) ensure durability and reliability in various industrial environments.
Specifications
| Bore Diameter | 45mm |
| Outer Diameter | 68mm |
| Width | 12mm |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
| Sealed Package | Packed |
Description
NTN 6413 Single Row Radial Ball Bearing, made of high-quality bearing steel, ensures reliable performance and durability. Ideal for various industrial applications.
Specifications
| Model No. | 6000/6200/6300 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Material | Bearing Steel |
| Feature | High Speed, Low Noise, Long Life |
| Stock | Rich Stocks Available |
Description
Premium quality deep groove ball bearings with high precision and low vibration. Ideal for high-speed applications requiring durability and quiet operation. Available in multiple models with rich stock for fast delivery.
Specifications
| Model No. | 6001 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Material | Bearing Steel |
| Feature | High Speed, Low Noise, Long Life |
| Origin | China |
Description
Premium quality deep groove ball bearing with high precision and low vibration. Ideal for high-speed applications requiring reliability and durability. Available in bulk stock with OEM/ODM support.
Specifications
| Bore Diameter | 120mm |
| Outer Diameter | 170mm |
| Thickness | 28mm |
| Model No. | 61806-2Z 61806-2RS |
| Material | Bearing Steel |
| Origin | Germany, Sweden, Japan |
Description
Premium radial bearing with single row design, ideal for high precision applications. Durable bearing steel construction ensures long service life and reliable performance under radial loads.

















