Product Specifications
| Parameter |
Details |
| Model NO. |
NK45/20 |
| Load Direction |
Radial Bearing |
| Style |
Without Outer Ring, Without Inner Ring |
| Material |
Bearing Steel |
| Type |
Closed |
| Product Name |
Needle Roller Bearing |
| Lubrication |
Grease or Oil |
| Precision Rating |
P0 P6 P5 P4 P2 |
| Clearance |
C0 C3 C4 |
| Specification |
45*55*20 mm |
| HS Code |
8482102000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Printing Equipment, Reducers |
| Automotive |
Transmission Systems, Gearboxes |
| Agricultural Machinery |
Harvesters, Tractors |
| New Energy |
Wind Turbines, Solar Equipment |
Eliminate Downtime with Precision NK45/20 Needle Roller Bearing for Industrial Machinery
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failures. When a needle roller bearing in your machine tool or reducer fails prematurely, it disrupts production schedules, increases maintenance costs, and impacts overall productivity. Many face challenges with bearings that lack consistent precision or fail to meet load requirements, leading to frequent replacements and operational headaches.
Reliable NK45/20 Needle Roller Bearing Engineered for Industrial Performance
The NK45/20 Needle Roller Bearing is designed to address these pain points with its robust construction and precise engineering. As a radial needle roller bearing with dimensions 45x55x20mm, it delivers reliable performance in industrial machinery applications where space is limited and load capacity is critical. Our bearings are manufactured to P0-P4 precision grades, ensuring they meet the strict tolerances required for high-precision equipment like machine tools and printing machinery. With a focus on quality and consistency, we provide bearings that minimize downtime and reduce the need for frequent replacements.
Optimal Performance in Demanding Industrial Conditions
This closed-type needle roller bearing is built to excel in the demanding conditions of industrial machinery. Without outer and inner rings, it offers a compact design that is ideal for applications with limited radial space, such as gearboxes and reducers. The bearing steel material provides excellent wear resistance, allowing it to handle heavy radial loads and continuous operation. Whether used in machine tools that require precise motion control or agricultural equipment subjected to harsh environments, the NK45/20 bearing delivers the reliability and durability needed to keep your operations running smoothly.
Key Technical Features That Ensure Performance
The performance of the NK45/20 Needle Roller Bearing is defined by several critical technical parameters. Its precision rating options (P0-P4) allow you to select the exact level of accuracy needed for your application—from general industrial use (P0) to high-precision machinery (P4). The clearance options (C0, C3, C4) provide flexibility to accommodate different operating conditions, ensuring proper fit and reducing heat generation during operation. The closed type design helps retain lubrication (grease or oil) and protects internal components from contaminants, extending bearing life. These features work together to ensure consistent performance, reduced maintenance, and longer service intervals for your equipment.
Why Authentic Bearings Matter for Your Bottom Line
Choosing authentic needle roller bearings like the NK45/20 is an investment in your equipment's reliability and your business's profitability. Counterfeit or low-quality bearings often fail prematurely, leading to unexpected downtime, costly repairs, and potential damage to other machine components. The true cost of these failures includes not just the replacement bearing but also lost production, labor for repairs, and the risk of secondary equipment damage. Our bearings are manufactured under strict quality control processes, supported by ISO9001 and ISO14001 certifications, ensuring they meet international standards for performance and durability. By investing in authentic, high-quality bearings, you reduce the total cost of ownership and ensure consistent operation of your industrial machinery.
Your Trusted Partner for Industrial Bearings
At Jinan Saifan Bearing, we have been serving global buyers since 2005, building a reputation for reliability and quality. Our integrated manufacturing and exporting capabilities allow us to offer stable supply and competitive pricing. We maintain a full R&D department and QC lab to ensure every bearing meets our strict quality standards. With a 12-month global warranty, free technical guidance, and defect replacement/refund policies, we stand behind our products. Our flexible order options—including 1pc MOQ for standard items, 3–5 days sample lead time, and 5–15 days bulk delivery—make us the ideal partner for both small-scale repairs and large-volume production needs. We are committed to being your long-term bearing partner, providing the support and products you need to keep your operations running efficiently.
Packaging & Shipping
- Carton and pallet packaging to ensure safe transport
- 3-7 days delivery time for standard orders
- Flexible shipping options including international couriers and freight
- Real-time logistics tracking provided for all shipments
- 1pc MOQ available for standard items, supporting emergency repairs
Secure Your NK45/20 Needle Roller Bearing Today
Don’t let bearing failures disrupt your production. The NK45/20 Needle Roller Bearing is ready to deliver the precision and reliability your industrial machinery demands. Send us your order details, including quantity and application requirements, and we’ll provide a prompt quote. With fast delivery and responsive service, we help you minimize downtime and keep your operations on track.
Frequently Asked Questions
Q: Are these bearings authentic and traceable?
A: Yes, we are an integrated manufacturer with strict quality control processes. All our bearings are produced in-house and come with full traceability to ensure authenticity.
Q: How can I confirm if the NK45/20 is suitable for my equipment?
A: Provide your equipment model, operating conditions (load, speed, temperature), and we will have our technical team verify compatibility and provide guidance.
Q: What is the warranty policy for this bearing?
A: We offer a 12-month global warranty. If the bearing has manufacturing defects, we provide free replacement or refund.
Q: What is the minimum order quantity for the NK45/20?
A: The minimum order quantity is 1 piece for standard items, supporting both small repairs and bulk purchases.
Q: How long does it take to ship the NK45/20 bearing?
A: Standard delivery time is 3-7 days. For bulk orders, delivery typically takes 5-15 days depending on quantity.
Q: Can you provide technical support for installation and maintenance?
A: Yes, we offer free technical guidance to help with installation, lubrication, and maintenance to ensure optimal bearing performance.
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