NSK/NTN/Koyo 1205K-1208K Self-Aligning Ball Bearings – Low Noise, High Precision
Basic Info.
| Inner Diameter | 25 mm |
| Outer Diameter | 52 mm |
| Thickness | 15 mm |
| Model No. | 1205K |
| Material | Bearing Steel |
| Origin | Japan |
Introduction
High-precision NSK roller bearing, double-row spherical aligning type, radial load capacity. Made of premium bearing steel, unseparated design, suitable for OEM/ODM applications. Outer dimension range: 35–400 mm. Packaged in carton pallet.
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 | 100 mm |
| Outer Diameter | 180 mm |
| Width | 46 mm |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Material | Bearing Steel |
Description
High-performance roller bearing with double row design, offering long life, high speed, and low noise operation. Suitable for radial loads, this unseparated aligning bearing is ideal for industrial applications requiring reliability and precision.
Specifications
| Model No. | 24032, 23238, 22218, 24128, 23148, 21314, 241/950 |
| Type | Aligning Thrust Roller Bearing |
| Load Direction | Thrust |
| Separated | Unseparated |
| Origin | China |
| Production Capacity | One Million Pieces Per Year |
Description
High-performance spherical thrust roller bearings with medium size design, ideal for heavy axial loads and misalignment conditions. Made in China with export-standard packaging.
Specifications
| Model No. | 23164 23168 23172 23176 23180 |
| Dimensions (mm) | 100 x 180 x 46 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Material | Bearing Steel |
| Feature | High Speed, Low Noise, Long Life |
Description
High-performance roller bearing with double row design, made of durable bearing steel. Ideal for radial loads, offering high precision, low noise, and long service life. Suitable for various industrial applications requiring reliability and efficiency.
Specifications
| Bore Diameter | 100 mm |
| Outer Diameter | 180 mm |
| Width | 46 mm |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Material | Bearing Steel |
Overview
High-speed roller bearing with long life and low noise. Double row, radial design, non-separable. Ideal for industrial applications requiring durability and precision. OEM/ODM service available.
Specifications
| Bore Diameter | Varies by model (e.g., 22320, 22322, 22324) |
| Type | Spherical Roller Bearing |
| Load Direction | Thrust Bearing |
| Design | Unseparated, Aligning |
| Origin | China |
| Production Capacity | 1 Million Pieces/Year |
Description
High-performance spherical roller bearings designed for heavy thrust loads. These unseparated, self-aligning bearings offer reliable operation in demanding applications. Made to standard export specifications with consistent quality from a leading Chinese manufacturer.
Specifications
| Outer Dimension | Large (200-430mm) |
| Type | Aligning Bearings |
| Material | Chrome Steel |
| Origin | China |
| HS Code | 8482102000 |
Description
High-quality chrome steel aligning bearing with large outer dimension, ideal for heavy-duty industrial applications. Durable construction ensures long service life and reliable performance under high load and variable speed conditions.
Specifications
| Bore Diameter | 100 mm |
| Outer Diameter | 180 mm |
| Width | 46 mm |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Material | Bearing Steel |
Description
High-performance roller bearing with long life, high speed, and low noise. Suitable for radial loads, featuring aligning design and unseparated structure. Ideal for OEM/ODM applications.
Specifications
| Bore Diameter | 100 mm |
| Outer Diameter | 180 mm |
| Width | 46 mm |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Material | Bearing Steel |
Description
High-speed roller bearing with long life and low noise. Suitable for radial loads, featuring double-row unseparated design. Ideal for industrial applications requiring precision and durability. Made in China, OEM/ODM supported.
Specifications
| Bore Diameter | Available in multiple sizes (Model: 21307-21314) |
| Type | Spherical Aligning Thrust Bearing |
| Design | Unseparated, Medium Roller Bearing |
| Origin & HS Code | China, 84823000 |
| Packaging | Export Packing Standard |
| Capacity | 1,000,000 pieces/year |
Description
High-performance spherical thrust roller bearings designed for heavy axial loads. Ideal for industrial applications requiring durability and precision.
Specifications
| Inner Diameter x Outer Diameter x Thickness | 100 x 180 x 46 mm |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Material | Bearing Steel |
| Feature | Long Life, High Speed, Low Noise |
| Transport | by Sea or by Air |
Description
High-performance roller bearing with double row design, made of durable bearing steel. Offers long service life, high-speed capability, and low noise operation. Ideal for industrial applications requiring precision and reliability.
Specifications
| Bore Diameter | 100 mm |
| Outer Diameter | 180 mm |
| Width | 46 mm |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Material | Bearing Steel |
Description
High-speed roller bearing with long life and low noise. Double-row radial design, unseparated structure, suitable for high-load applications. Made of high-quality bearing steel, ensuring durability and performance. Ideal for industrial machinery requiring precision and reliability.
Specifications
| Model NO. | 21311 |
| Dimensions (mm) | 55*120*29 |
| Material | Bearing Steel |
| Rolling Body | Roller Bearings |
| Load Direction | Radial Bearing |
| Speed & Noise | High Speed, Low Noise |
Description
Precision roller bearing with long life and high-speed performance. Ideal for industrial applications requiring reliability and efficiency. Available in multiple precision ratings and clearances.

















