Needle Roller Bearings K42X50X17-K50X58X25 High Load Capacity
Specifications
| Bore Diameter | 50 mm |
| Outer Diameter | 58 mm |
| Width | 25 mm |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
Description
Precision needle roller bearing with dimensions 50x58x25 mm, made of high-quality bearing steel. Suitable for radial load applications, available with various clearance and precision grades. Ideal for industrial machinery requiring compact and durable bearing solutions.
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 | 125 mm |
| Outer Diameter | 150 mm |
| Width | 40 mm |
| Model | RNA4922 |
| Material | Bearing Steel |
Description
Needle Roller Bearing RNA4922, made of high-quality bearing steel, features a radial load direction and closed design without inner or outer ring. Suitable for high precision applications with P0-P2 rating, available with C0/C3/C4 clearance. Lubricated with grease or oil, ideal for industrial machinery.
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 | 85 mm |
| Outer Diameter | 120 mm |
| Width | 35 mm |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
Description
Needle Roller Bearing NA4917, made of high-quality bearing steel, features radial load capacity and compact design. Suitable for high-precision applications with options for OEM/ODM service. Efficient delivery in 3-7 days.
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 | 415 mm |
| Outer Diameter | 480 mm |
| Width | 100 mm |
| Model | RNA4876 |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
Description
Needle Roller Bearing RNA4876, made of high-quality bearing steel, features radial load capacity and compact design without inner or outer ring. Suitable for high precision applications with options for grease or oil lubrication.
Specifications
| Bore Diameter | 10 mm |
| Outer Diameter | 22 mm |
| Width | 13 mm |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
Description
Needle Roller Bearing NA4900, made of high-quality bearing steel, features a compact design without inner or outer ring. Ideal for radial load applications with precision ratings up to P2. Suitable for OEM/ODM services with fast delivery.
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 | 68 mm |
| Outer Diameter | 85 mm |
| Width | 25 mm |
| Model NO. | RNA4912 |
| Material | Bearing Steel |
| Origin | Japan |
Description
High-precision needle roller bearing RNA4912 from IKO, featuring radial load direction and closed type design. Made of high-quality bearing steel with options for grease or oil lubrication. Ideal for industrial applications requiring compact, durable bearings.
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 | 17 mm |
| Outer Diameter | 30 mm |
| Width | 23 mm |
| Model NO. | NA6903 |
| Material | Bearing Steel |
| Load Direction | Radial |
Description
Needle roller bearing NA6903 with high precision steel construction, designed for radial load applications. Features compact dimensions of 17x30x23 mm, available with various clearance options (C0/C3/C4) and precision ratings up to P2. Suitable for OEM/ODM use with short delivery time.
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.

















