Customizable NK20/20 NK21/16 NK21/20 Needle Roller Bearings
Specifications
| Bore Diameter | 20 mm |
| Outer Diameter | 28 mm |
| Width | 20 mm |
| Load Direction | Radial |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
Description
Needle Roller Bearing NK20/20, made of high-quality bearing steel, features a compact design without inner or outer ring. Ideal for radial load applications requiring high precision and durability. Available with OEM/ODM support, fast delivery in 3-7 days.
Basic Info.
- Pillow Block Bearing
- Cylindrical Roller Bearing
- Spherical Plain Bearing
- Thrust Self-aligning Roller Bearing
- Plain Bearing
- Spherical Roller Bearing
- Self-Aligning Ball Bearing
- Taper Roller Bearing
- Thrust Needle Roller Bearing
- Needle Bearing
- Bearing Block
- Deep Groove Ball Bearing
- Alloy Guide Rail
- Angular Contact Ball Bearing
- Linear Bearing
- Auto Bearing
- Machine Tools Accessories
- Auto Air Conditioning Compressor
- Thrust Ball Bearing
Related Products
Specifications
| Bore Diameter | 160 mm |
| Outer Diameter | 190 mm |
| Width | 50 mm |
| Load Direction | Radial Bearing |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
Description
Needle Roller Bearing RNA4928 made of Bearing Steel, without outer and inner ring, suitable for radial load applications. Lubricated with grease or oil, available in high precision grades and various clearances. OEM/ODM service provided.
Specifications
| Bore Diameter | 45 mm |
| Outer Diameter | 68 mm |
| Width | 40 mm |
| Load Direction | Radial Bearing |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
Description
Needle Roller Bearing NA6909 made of Bearing Steel, without outer and inner ring, suitable for radial load applications. Offers high precision (P0-P2), multiple clearance options, and can be lubricated with grease or oil. Ideal for compact machinery with OEM/ODM support.
Specifications
| Bore Diameter | 70 mm |
| Outer Diameter | 100 mm |
| Width | 30 mm |
| Material | Bearing Steel |
| Load Direction | Radial |
| Precision Rating | P0, P6, P5, P4, P2 |
Description
Needle Roller Bearing NA4914, made of high-quality bearing steel, features a radial load direction and precision ratings from P0 to P2. Ideal for compact designs without inner or outer rings, suitable for grease or oil lubrication.
Specifications
| Bore Diameter | 120 mm |
| Outer Diameter | 165 mm |
| Width | 45 mm |
| Model NO. | NA4924 |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
Description
Needle Roller Bearing NA4924, made of high-quality bearing steel, features radial load direction and closed type design. Suitable for precision applications with clearance options C0, C3, C4. Ideal for industrial machinery requiring compact and durable bearings.
Specifications
| Bore Diameter | 85 mm |
| Outer Diameter | 120 mm |
| Width | 63 mm |
| Load Direction | Radial Bearing |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
Description
Needle Roller Bearing NA6917 made of Bearing Steel, featuring high precision and durability. Suitable for radial load applications with options for grease or oil lubrication. Ideal for industrial machinery requiring compact design and high performance.
Specifications
| Bore Diameter | 220 mm |
| Outer Diameter | 250 mm |
| Width | 50 mm |
| Load Direction | Radial Bearing |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
Description
Needle Roller Bearing RNA4840 made of Bearing Steel, without outer and inner ring, suitable for radial load applications. Offers high precision and multiple clearance options. Lubrication compatible with grease or oil.
Specifications
| Bore Diameter | 55 mm |
| Outer Diameter | 80 mm |
| Width | 25 mm |
| Model NO. | NA4911 |
| Material | Bearing Steel |
Description
Needle Roller Bearing NA4911, made of high-quality bearing steel, features radial load direction and closed type design. Suitable for high precision applications with options for grease or oil lubrication. Precision ratings available up to P2.
Specifications
| Bore Diameter | 360 mm |
| Outer Diameter | 440 mm |
| Width | 80 mm |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
Description
Needle Roller Bearing NA4872, made of high-quality bearing steel, features radial load direction and precise performance. Available with OEM/ODM service, this closed-type bearing offers P0-P2 precision ratings and C0-C4 clearance options, ideal for industrial applications.
Specifications
| Model | RNA4852 |
| Dimensions | 285*320*60 mm |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4, P2 |
Description
The RNA4852 needle roller bearing features a closed design without inner or outer rings, made of high-quality bearing steel. Ideal for radial load applications, it offers multiple precision and clearance options, suitable for OEM/ODM use with reliable performance and fast delivery.
Specifications
| Bore Diameter | 120 mm |
| Outer Diameter | 140 mm |
| Width | 30 mm |
| Model No. | RNA4822 |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
Description
Precision Needle Roller Bearing RNA4822, made of high-quality bearing steel, features radial load capacity and compact design without inner or outer ring. Available in P0-P2 precision ratings with C0-C4 clearance options, suitable for various industrial applications requiring reliability and performance.
Specifications
| Bore Diameter | 110 mm |
| Outer Diameter | 140 mm |
| Width | 30 mm |
| Load Direction | Radial Bearing |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
Description
Needle Roller Bearing NA4822, made of high-quality bearing steel, features a compact design without inner or outer rings. Suitable for radial load applications, it offers multiple precision and clearance options, ideal for OEM/ODM use in various industrial environments.
Specifications
| Bore Diameter | 170 mm |
| Outer Diameter | 215 mm |
| Width | 45 mm |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
Description
Needle Roller Bearing NA4834, made of high-quality bearing steel, features a closed design without inner or outer ring. Suitable for radial load applications, it offers precision ratings P0 to P2 and multiple clearance options. Ideal for industrial machinery with OEM/ODM support.

















