Na Series Radial Insert Ball Bearing

• Customization: Available
• Temperature Range: -30°c to +150°c
• Sealing Options: Open, Metal Shield (Zz), or Rubber Seal (2RS)
• Model NO.: NA203
• Load Capacity: High
• Lubrication: Pre-Lubricated with Grease or Oil
• Tolerance: ABEC 1 to ABEC 7
• Noise Level: Low, Suitable for Precision Applications
• Applications: Robotics, Medical Devices, Instruments, RC Models,
• Transport Package: Sealed in Plastic Bags, Packed in Foam-Lined Boxes
• Specification: Chrome Steel (AISI 52100) or Stainless Steel (AISI
• Trademark: LOWIFAR
• Origin: China
• HS Code: 848210
• Production Capacity: 50000PCS/Year

Product Description

Key Features of NA Series Radial Insert Ball Bearing

(Custom configurations available upon request.)

Extended Inner Ring:

Features an extended inner ring for improved support and enhanced shaft stability.
Self-Alignment Capability:

Allows for minor misalignments during operation, reducing stress on the bearing and associated components.
Locking Mechanisms:

Comes with various locking options such as set screws or eccentric locking collars for secure and easy shaft mounting.
Durable Material Composition:

Manufactured from high-grade steel for excellent wear resistance and long service life.
Stainless steel variants are available for enhanced corrosion resistance.
Sealing Options:

Equipped with high-quality seals to protect against contamination from dust, dirt, and moisture, ensuring reliable performance.
Pre-Lubricated:

Supplied with factory-applied grease, reducing initial maintenance efforts.
Versatility:

Suitable for a wide range of applications, including agricultural machinery, conveyor systems, material handling, and other industrial uses.
High Load Capacity:

Designed to accommodate both radial and axial loads effectively in challenging conditions.
Vibration and Noise Reduction:

Optimized internal design minimizes noise and vibration during operation.
Easy Maintenance:

Removable sealing systems and lubrication points allow for simplified servicing and extended bearing life.
Wide Temperature Range:

Operates efficiently in both low and high-temperature environments, making it suitable for demanding applications.
Housing Compatibility:

Compatible with various types of housings, including pillow blocks, flange units, and take-up units.
Corrosion Resistance:

Coatings and stainless steel variants are available for use in corrosive environments or wet conditions.
Customizable Options:

Available in a variety of bore sizes, seal types, and configurations to suit specific operational requirements.
Impact Resistance:

Engineered to withstand sudden impacts and shock loads without compromising performance.
Cost-Effective Solution:

Combines durability, ease of installation, and low maintenance to deliver a cost-effective bearing solution.

Built to handle sudden impacts and heavy shock loads, ensuring operational reliability.

Series	NA Series
Material	Chrome Steel (GCr15) / Stainless Steel (AISI 440)
Bore Diameter	10 mm to 120 mm
Outer Diameter	Based on housing type
Width	Varies by model
Locking Mechanism	Eccentric Locking Collar / Set Screws
Seal Type	Single or double seals
Housing Compatibility	Pillow Block, Flanged Units, and more
Lubrication	Pre-lubricated with high-quality grease
Temperature Range	-30°C to +150°C
Dynamic Load Rating	Based on size and model
Static Load Rating	Based on size and model

Bearing No.	d		Dimensions(mm)
	(mm)	(in.)	D	Be	Bi	B1	n	K	H
NA203	17		40	14	37.3	27.8	13.9	28.6	13.5
NA203-11	17.463	11/16	40	14	37.3	27.8	13.9	28.6	13.5
NA204-12	19.05	3/4	47	17	43.7	34.2	17.	33.3	13.5
NA204	20		47	17	43.7	34.2	17.1	33.3	13.5
NA205-14	22.225	7/8	52	17	44.4	35	17.5	38.1	13.5
NA205-15	23.813	15/16	52	17	44.4	35	17.5	38.1	13.5
NA205	25		52	17	44.4	35	17.5	38.1	13.5
NA205-16	25.4	1	52	17	44.4	35	17.5	38.1	13.5
NA206-18	28.575	11/8	62	19	48.4	36.6	18.3	44.5	15.9
NA206	30		62	19	48.4	36.6	18.3	44.5	15.9
NA206-19	30.163	1 3/16	62	19	48.4	36.6	18.3	44.5	15.9
NA206-20	31.75	11/4	62	19	48.4	36.6	18.3	44.5	15.9
NA207-20	31.75	11/4	72	20	51.1	37.6	18.8	55.6	17.5
NA207-22	34.925	13/8	72	20	51.1	37.6	18.8	55.6	17.5
NA207	35		72	20	51.1	37.6	18.8	55.6	17.5
NA207-23	36.513	1 7/16	72	20	51.1	37.6	18.8	55.6	17.5
NA208-24	38.1	11/2	80	21	56.3	42.8	21.4	60.3	18.3
NA208-25	39.688	1 9/16	80	21	56.3	42.8	21.4	60.3	18.3

NA209-26	41.275	15/8	85	22	56.3	42.8	21.4	63.5	18.3
NA209-27	42.863	1 11/16	85	22	56.3	42.8	21.4	63.5	18.3
NA209-28	44.45	13/4	85	22	56.3	42.8	21.4	63.5	18.3
NA209	45		85	22	56.3	42.8	21.4	63.5	18.3
NA210-31	49.213	1 15/16	90	24	62.7	49.2	24.6	69.9	18.3
NA210	50		90	24	62.7	49.2	24.6	69.9	18.3
NA210-32	50.8	2	90	24	62.7	49.2	24.6	69.9	18.3
NA211-32	50.8	2	100	25	71.4	55.6	27.8	76.2	20.7
NA211	55		100	25	71.4	55.6	27.8	76.2	20.7
NA211-35	55.563	2 3/16	100	25	71.4	55.6	27.8	76.2	20.7
NA212-36	57.15	21/4	110	27	77.8	62	31	84.2	22.3
NA212	60		110	27	77.8	62	31	84.2	22.3
NA212-39	61.913	2 7/16	110	27	77.8	62	31	84.2	22.3
NA213-40	63.5	21/2	120	28	85.7	68.6	34.1	86	23.5
NA213	65		120	28	85.7	68.6	34.1	86	23.5
NA215-47	74.613	2 15/16	130	30	92.1	75	37.3	102	23.5
NA215	75		130	30	92.1	75	37.3	102	23.5
NA215-48	76.2	3	130	30	92.1	75	37.3	102|	23.5

High-Precision Ceramic and Stainless Steel Bearings Manufacturer

Delivering exceptional quality and precision, our ceramic and stainless steel bearings are engineered to meet the diverse needs of industries worldwide. Trusted for durability and performance, we are your reliable partner in advanced bearing solutions.

Specification

Applications
Aerospace: High-performance bearings for aircraft engines and systems.
Automotive: Durable solutions for engines, transmissions, and electric vehicles.
Medical Equipment: Precision bearings for surgical tools and diagnostic devices.
Industrial Machinery: Robust bearings for heavy-duty operations in manufacturing and production.
Renewable Energy: Specialized bearings for wind turbines and solar tracking systems.
Food & Beverage: Corrosion-resistant bearings for hygienic and reliable operations.
 
Key Configurations
Ceramic Bearings: Offering high temperature resistance, low friction, and excellent corrosion resistance.
Custom Designs: Tailored bearing solutions to meet specific application requirements.
High-Precision Tolerances: Ensuring consistent performance in demanding applications.
Maintenance-Free Options: Sealed bearings for enhanced durability and reduced downtime.

Production Process

1) Premium-grade ceramic and stainless steel materials are sourced to meet stringent quality standards.
2) Advanced CNC and grinding machines shape the bearing components to achieve tight tolerances and smooth finishes.
3) Precision polishing ensures low friction and optimal performance for both ceramic and stainless steel bearings.
4)Bearings are carefully assembled in a clean, controlled environment to maintain integrity and precision.
5) Rigorous quality checks, including dimensional accuracy, surface finish, and load testing, are performed to ensure every bearing meets or exceeds industry standards.

Ceramic bearing

Stainless steel bearing

Hybrid ceramic bearing

Many years of experience in bearing business

After Sales Service

Technical Support: Expert guidance for installation, maintenance, and troubleshooting to ensure optimal performance.
Warranty Assurance: Coverage for manufacturing defects, providing peace of mind with every purchase.
Customized Solutions: Tailored advice and modifications to address specific operational challenges or requirements.
Prompt Response: Dedicated support team available to address inquiries and resolve issues quickly and effectively.

Company Profile

At LOWIFAR Bearings, we specialize in designing and manufacturing a wide range of precision, high-quality ball bearings and tapered roller bearings. Our products are designed to meet the demands of heavy agricultural machinery, textile machinery, various engineering applications, motors, automobiles, computers, electric appliances, power tools, pumps, and more.

With over ten years of experience in bearing production, LOWIFAR is a trusted manufacturer dedicated to providing custom-made bearing solutions to meet your unique requirements.

Our experienced and professional team ensures that we deliver products of the highest quality. We are proud to have exported our bearings to numerous countries and regions worldwide, including Europe, North America, India, Thailand, South Korea, Mexico, Turkey, Argentina, Russia, and many others.

Our bearings have earned a strong reputation for reliability and performance among our global customer base. We invite customers, business partners, and friends from all over the world to connect with us for mutually beneficial cooperation.

FAQ

1. What are ceramic bearings?
Ceramic bearings are bearings made from advanced ceramic materials such as Zirconia (ZrO2) or Silicon Nitride (Si3N4). They are known for their high strength, wear resistance, and ability to perform in extreme conditions.

2. What are the advantages of ceramic bearings over steel bearings?
Ceramic bearings offer several advantages, including:

  Higher Durability: Resistant to wear, corrosion, and high temperatures.
  Lighter Weight: Up to 40% lighter than steel bearings.
  Non-Magnetic & Electrically Insulating: Ideal for sensitive applications.
  Low Friction: Reduces energy loss and heat generation.
3. In which industries are ceramic bearings commonly used?
Ceramic bearings are widely used in:

  Packaging equipment
  Renewable energy (e.g., wind turbines)
  Aerospace and automotive
  Medical devices
  Chemical processing
  High-precision tools
4. Can ceramic bearings handle high temperatures?
Yes, ceramic bearings are highly resistant to heat and can operate in temperatures exceeding 1,000°C, depending on the material used.

5. Are ceramic bearings suitable for corrosive environments?
Absolutely! Ceramic bearings are non-reactive to most chemicals, making them ideal for use in highly corrosive environments.

6. What is the lifespan of ceramic bearings?
Ceramic bearings typically last much longer than steel bearings due to their wear resistance and durability. However, the exact lifespan depends on the operating conditions and maintenance practices.

7. How do I maintain ceramic bearings?
Ceramic bearings require minimal maintenance, but to ensure longevity:

  Use the correct lubrication when necessary.
  Keep them clean and free from contaminants.
  Follow proper installation procedures.
8. Do you provide customized ceramic bearings?
Yes, we offer tailored ceramic bearing solutions to meet your specific application requirements. Contact us to discuss your needs.

9. What sizes and types of ceramic bearings do you offer?
We supply a wide range of sizes and configurations, including ball bearings, roller bearings, and hybrid bearings. Check our product catalog or contact us for more details

10. How can I place an order or request a quote?
Simply visit our Contact Us page, fill out the inquiry form, or reach out to us directly via email or phone. Our team will respond promptly with the information you need