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SKF Roller Bearing Needle 25 mm Inside Diameter 20 mm Race Width 33 mm Outside Diameter NK 25/20
Specifications
| Country of Origin | India |
|---|---|
| Brand | SKF |
| Model | NK 25/20 |
| Outside diameter | 33mm |
| Roller Material | Carbon Chrome Steel |
| Inside Diameter | 25mm |
| Bearing Material | Bearing Steel |
| Number of Rows | 1 |
| Limiting Speed | 18000rpm |
| End Type | Open |
| Bore Type | Parallel |
| Bearing Type | Needle |
| Cage Material | Sheet Steel |
| Race Width | 20mm |
| Static Load Rating | 32.5kN |
| Dynamic Load Rating | 19kN |
| Maximum Speed - Oil | 16000rpm |
| Maximum Speed - Grease | 10000rpm |
Key Features
- Single-row needle bearing designed to support radial loads efficiently.
- Parallel bore type with an open end for simplified mounting.
- Sheet steel cage ensures low friction and controlled roller guidance.
- Carbon chrome steel rollers offer durability and wear resistance.
- High dynamic load rating of 19 kN supports demanding operations.
- Capable of speeds up to 18,000 rpm for high-speed applications.
- Suitable for applications in automation, electrical, and mechanical systems.
- Designed for compact rotating assemblies with narrow cross-section requirements.
Product Description
SKF NK 25/20 is a precision-engineered roller bearing needle featuring a 25 mm inside diameter, 20 mm race width, and 33 mm outside diameter. This single-row needle bearing is ideal for supporting radial loads within compact rotating assemblies encountered in industrial automation, electrical drives, and mechanical systems.
Its parallel bore design allows for press-fit installation and precise shaft alignment, while the open-end configuration provides direct shaft access facilitating axial location with external retaining components. The bearing features a robust sheet steel cage that reduces friction and ensures consistent roller guidance.
The rolling elements are made from high-quality carbon chrome steel, delivering excellent fatigue strength and wear resistance. This bearing offers a dynamic load rating of 19 kN and a static load rating of 32.5 kN, making it suitable for demanding load applications.
SKF NK 25/20 supports high-speed rotation up to 18,000 rpm, with lubrication options for oil (up to 16,000 rpm) and grease (up to 10,000 rpm) allowing flexible maintenance strategies depending on operating conditions.
Common industrial uses include precision actuator shafts in automation, compact gearbox input stages, sliding carriers in pick-and-place machinery, rotating contacts in small motor assemblies, and conveyor rollers in light-duty material handling.
Single-row needle bearing designed to support radial loads efficiently. Parallel bore with open-end provides mounting versatility. Sheet steel cage with reduced friction and controlled roller guidance. Carbon chrome steel rollers enhance durability and wear resistance.
High dynamic load rating of 19 kN supports operation demands. Operates efficiently up to 18,000 rpm speed. Suitable for various industrial automation and material handling applications.
Choosing SKF NK 25/20 ensures reliable performance and longevity in demanding industrial environments. Explore our Roller Bearings section for compatible components and comprehensive solutions.
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Frequently Asked Questions
The SKF NK 25/20 needle bearing has an inside diameter of 25 mm, a race width of 20 mm, and an outside diameter of 33 mm.
The dynamic load rating of the SKF NK 25/20 is 19 kN, making it suitable for demanding load applications.
This model can operate at a maximum speed of 16,000 rpm when lubricated with oil.
Yes, it supports speeds up to 18,000 rpm, making it suitable for high-speed applications.
The SKF NK 25/20 can be lubricated with oil or grease, with maximum speeds of 16,000 rpm for oil and 10,000 rpm for grease.
The static load rating of this bearing is 32.5 kN, suitable for applications requiring high static load support.
The bore type of this needle bearing is parallel, allowing for press-fit installation and precise shaft alignment.
It is suitable for applications in automation, electrical drives, and mechanical systems, particularly in compact rotating assemblies.
This model features a single-row design, which is efficient for supporting radial loads.
The end type of this bearing is open, which facilitates direct shaft access and axial location with external retaining components.
The country of origin for the SKF NK 25/20 is India.
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