Long-Life and Low-Maintenance Needle Roller Bearings Na4914 Na4915 Nk22/20 Nk25/20 Nk28/22 Na4910

• Customization: Available
• Cage: Without Cage
• Rows Number: Multiple
• Model NO.: NA4914 NA4915 NK22/20 NK25/20 NK28/22 NA4910
• Load Direction: Radial Bearing
• Style: Without Outer Ring, With Outer Ring, Without Inner Ring, With Inner Ring
• Material: Cast Iron
• Type: Closed
• Transport Package: Custom Packaging
• Specification: 60mm*95mm*18
• Trademark: Ju dong
• Origin: China
• HS Code: 8482400000
• Production Capacity: 50000

Product Description

Here are some promotional copy options for needle roller bearings, highlighting their core advantages and wide range of applications. These are suitable for product brochures, websites, or exhibition promotions:
 High Load Capacity, Compact Design
Copy: Needle roller bearings, with their slender rollers at the core, deliver exceptional radial load capacity. Their compact design perfectly fits space-constrained industrial equipment, ensuring more efficient and stable machine operation.
Use Case: Ideal for automotive transmissions, industrial machinery, and other applications with high space and load requirements.
 Low Friction, High Speed
Copy: Needle roller bearings feature precision rollers and optimized raceway designs, significantly reducing friction losses and supporting high-speed operation. Whether for high-speed motors or precision instruments, needle roller bearings provide lasting and stable power support.
Use Case: Suitable for power tools, home appliance motors, and other high-speed equipment.
Long Life, Low Maintenance
Copy: Made from high-quality steel and advanced manufacturing processes, needle roller bearings ensure an extended service life. Their low-maintenance design reduces equipment downtime, helping you boost productivity and lower operating costs.
Use Case: Ideal for mining machinery, heavy-duty equipment, and other high-load, high-wear environments.
Versatile and Widely Applicable
Copy: From the automotive industry to aerospace, from home appliances to power tools, needle roller bearings are the ideal choice for equipment across industries, thanks to their high load capacity, low friction, and compact design.
Use Case: Suitable for multi-industry promotions, emphasizing product versatility.
 Precision Manufacturing, Reliable Performance
Copy: Every needle roller bearing undergoes precision manufacturing and rigorous testing to ensure stable performance even under extreme conditions. Choosing needle roller bearings means choosing reliability and peace of mind.
Use Case: Suitable for precision machinery, high-end equipment, and other fields with high reliability requirements.
Customized Solutions
Copy: We offer a variety of specifications and types of needle roller bearings to meet the unique needs of different equipment. Whether it's an inner ring-free design or a full-complement needle roller bearing, we can tailor the best solution for you.
Use Case: Suitable for customers requiring customized bearings.
Energy-Efficient and Eco-Friendly
Copy: The low-friction design of needle roller bearings not only improves equipment efficiency but also reduces energy consumption. Choose needle roller bearings and contribute to green manufacturing and sustainable development.
Use Case: Suitable for eco-friendly themes or green manufacturing promotions.
 Success Stories
Copy: A renowned automotive manufacturer achieved a 15% increase in transmission efficiency and a 30% reduction in failure rates after adopting our needle roller bearings. Needle roller bearings-trusted for their proven performance.
Use Case: Suitable for sharing customer success stories to build trust.
 Quality Assurance, Superior Service
Copy: We not only provide high-quality needle roller bearings but also offer professional technical support and after-sales service. From selection to installation, we are with you every step of the way to ensure your equipment operates efficiently.
Use Case: Suitable for promotions emphasizing service and support.
 Innovation-Driven, Leading the Future
Copy: As a leader in needle roller bearing technology, we continuously innovate to provide customers with more efficient and durable bearing solutions. Choosing us means choosing the future.
Use Case: Suitable for promoting technologically advanced companies.
Summary
Promotional copy for needle roller bearings should highlight their core advantages, such as high load capacity, low friction, compact design, and long life, while aligning with specific application scenarios and target customer needs to convey the product's value and reliability.

 

 

 

 

 

Bearing Model	Bore Diameter (mm)	Outer Diameter (mm)	Width (mm)	Weight (kg, Approx.)
NA4910	50	90	36	0.54
NA4914	70	95	36	0.68
NA4915	75	100	38	0.7
NK22/20	22	37	20	0.14
NK25/20	25	42	20	0.18
NK28/22	28	45	22	0.22

 

Design and Structural Advantages
Space - Saving: Needle roller bearings have small - diameter needle rollers, which make the radial dimension of the bearings more compact. In a limited installation space, they can leave more room for other components of the equipment, facilitating the miniaturization and lightweight design of the equipment. They are particularly suitable for applications with strict space requirements, such as automotive gearboxes and aerospace equipment.
Diversified Design: There are various design forms, including needle roller bearings with stamped outer rings, needle roller bearings with solid rings, and needle roller and cage assemblies. Different design forms can meet a wide range of application needs and installation conditions. For example, needle roller bearings with stamped outer rings have lower costs and are suitable for general industrial applications in mass production. In contrast, needle roller bearings with solid rings have higher strength and precision, making them suitable for high - load and high - precision scenarios.
Performance Advantages
High Load - Carrying Capacity: Due to the large contact area between the needle rollers and the raceways, needle roller bearings can withstand relatively large radial loads. Compared with other types of bearings of the same size, needle roller bearings can operate stably under higher loads, which is suitable for heavy - duty working conditions in construction machinery and agricultural machinery.
Low Friction Coefficient: The rolling friction characteristics of the needle rollers result in a small friction coefficient during the operation of the bearings. This can effectively reduce energy consumption, improve the transmission efficiency of the equipment, reduce heat generation and wear, and extend the service life of the equipment.
Good Rigidity: Needle roller bearings can provide relatively high rigidity, which helps to improve the overall stability and precision of the equipment, ensuring that the equipment maintains an accurate position and motion trajectory during operation. They are suitable for equipment with high precision requirements, such as machine tools and robots.
Application and Maintenance Advantages
Regularly check the lubrication condition and replenish or replace the grease in a timely manner.Needle roller bearings, with their high load - carrying capacity, compact design, low friction, and economic efficiency, are widely used in the automotive, industrial machinery, aerospace, and other fields. Whether it is high - load or high - speed operation, needle roller bearings can provide efficient and stable solutions.