Heavy-Duty Nki Series Needle Roller Bearings for Maximum Load

• Customization: Available
• Cage: Without Cage
• Rows Number: Multiple
• Model NO.: NKI5/12
• Load Direction: Radial Bearing
• Style: Without Outer Ring
• Material: Bearing Steel
• Type: Closed
• Series: RC040708 RC061008 Rcb061014 RC081208 Rcb081214
• Load Capacity: Handles High Radial Loads and Dynamic Conditions
• Sealing: Available with Sealed Designs for Contaminant
• Transport Package: Sealed in Plastic Bags, Packed in Foam-Lined Boxes
• Specification: Gcr15
• Trademark: LOWIFAR
• Origin: China
• HS Code: 848210
• Production Capacity: 50000PCS/Year

Product Description

Key Features of NKI Series Needle Roller Bearing

(Custom configurations available upon request.)

The NKI Series Needle Roller Bearings are high-precision, compact bearings designed for applications requiring high radial load capacity and efficient performance in minimal spaces. Featuring an integrated inner ring, these bearings ensure precise alignment and enhanced durability, making them ideal for automotive, industrial, and machinery use. Their robust design and precision manufacturing guarantee reliable performance in demanding environments.

 
 
Features:
Integrated Inner Ring: Ensures stable alignment and allows usage on shafts without hardened and ground raceways.
Needle Roller Design: Provides high load-carrying capacity while minimizing space requirements.
Compact and Lightweight: Optimized for use in applications with limited space without compromising strength.
Durable Materials: Constructed from premium-grade steel for excellent wear and corrosion resistance.
Precision Engineering: Designed for smooth operation with minimal friction and noise.
High Load Capacity: Built to handle substantial radial loads in compact systems.
Sealed and Open Options: Available with seals for enhanced protection against contaminants.
 
 
Applications:
Automotive: Used in transmissions, camshafts, and suspension systems for efficient power transmission.
Industrial Machinery: Ideal for gearboxes, compressors, and pumps requiring reliable and compact bearings.
Aerospace: Suitable for lightweight applications demanding high load performance.
Agricultural Equipment: Common in harvesters, tractors, and other machinery for dependable operation.
Power Tools: Found in drills, grinders, and saws where space and performance are critical.

Bearing Model	Dimensions(mm)					permisive	Basic Load Rating(N)		Limiting Speed(rpm)
	d	F	D	B	fmin	offset (s)	Dyn.C	Stat.Co	Oil
NKI5/12	5	8	15	12	0.3	1.5	3.2	3.28	25600
NKI6/12	6	9	16	12	0.3	1.5	3.64	4	24000
NKI6/16	6	9	16	16	0.3	2	4.4	5.12	24000
NKI7/12	7	10	17	12	0.3	1.5	3.64	4.08	22400
NKI7/16	7	10	17	16	0.3	2	4.36	5.16	22400
NKI9/12	9	12	19	12	0.3	1.5	4	4.88	20800
NKI9/16	9	12	19	16	0.3	2	7.2	8.8	20800
NKI10/16	10	14	22	16	0.3	0.5	8.24	9.2	19200
NKI10/20	10	14	22	20	0.3	0.5	10.4	12.48	19200
NKI12/16	12	16	24	16	0.3	0.5	9.76	11.92	18400
NKI12/20	12	16	24	20	0.3	0.5	11.68	15.04	18400
NKI15/16	15	19	27	16	0.3	0.5	10.64	13.92	16800
NKI15/20	15	19	27	20	0.3	0.5	12.8	17.76	16800
NKI17/16	17	21	29	16	0.3	0.5	11	15	15200
NKI17/20	17	21	29	20	0.3	0.5	14.64	21.68	15200
NKI20/16	20	24	32	161	0.3	0.5	12.16	17.84	13600
NKI20/20	20	24	32	20	0.3	0.5	14.88	23.04	13600
NKI22/16	22	26	34	16	0.3	0.5	12.48	18.88	12000

NKI20/20	20	24	32	20	0.3	0.5	14.88	23.04	13600
NKI22/16	22	26	34	16	0.3	0.5	12.48	18.88	12000
NKI22/20	22	26	34	20	0.3	0.5	15.28	24.4	12000
NKI25/20	25	29	38	20	0.3	1	17.76	27.2	11200
NKI25/30	25	29	38	30	0.3	1.5	22	40.4	11200
NKI28/20	28	32	42	20	0.3	1	18.8	30	10400
NKI28/30	28	32	42	30	0.3	1.5	27.2	48.4	10400
NKI30/20	30	35	45	20	0.3	0.5	19.84	33.2	8800
NKI30/30	30	35	45	30	0.3	1	28.8	53.2	8800
NKI32/20	32	37	47	20	0.3	0.5	20.24	34.8	8800
NKI32/30	32	37	47	30	0.3	1	29.2	55.6	8800
NKI35/20	35	40	50	20	0.3	0.5	21.12	37.6	8000
NKI35/30	35	40	50	30	0.3	1	30.8	60.8	8000
NKI38/20	38	43	53	20	0.3	0.5	22	40.8	7600
NKI38/30	38	43	53	30	0.3	1	32	65.6	7600
NKI40/20	40	45	55	20	0.3	0.5	22.4	42	7200
NKI40/30	40	45	55	30	0.3	1	32.8	68.4	7200
NKI42/20	42	47	57	20	0.3	0.5	23	44.4	6800
NKI42/30	42	47	57	30	0.3	1	34	73.2	6800
NKI45/25	45	50	62	25	0.6	1.5	30.8	59.6	6400

NKI45/35	45	50	62	35	0.6	2	40.8	84.8	6400
NKI50/25	50	55	68	25	0.6	1.5	32.8	65.6	6000
NKI50/35	50	55	68	35	0.6	2	43.2	94.4	6000
NKI55/25	55	60	72	25	0.6	1.5	32.8	68	5200
NKI55/35	55	60	72	35	0.6	2	45.6	104	5200
NKI60/25	60	68	82	25	0.6	1	35.6	71.2	4800
NKI60/35	60	68	82	35	0.6	1	50.4	111.2	4800
NKI65/25	65	73	90	25	1	1	43.2	80	4400
NKI65/35	65	73	90	35	1	1	61.2	124.8	4400
NKI70/25	70	80	95	25	1	0.8	45.6	95.2	4000
NKI70/35	70	80	95	35	1	0.8	63.6	147.2	4000
NKI75/25	75	85	105	25	1	1	56.4	98.4	3760
NKI75/35	75	85	105	35	1	1	80	154.4	3760
NKI80/25	80	90	110	25	1	1	57.2	102.4	3520
NKI80/35	80	90	110	35	1	1	83.2	166.4	3520
NKI85/26	85	95	115	261	1	1.5	59.6	109.6	3360
NKI85/36	85	95	115	36	1	1.5	86.4	178.4	3360
NKI90/26	90	100	120	261	1	1.5	58,8	109.6	3200
NKI90/36	90	100	120	36	1	1.5	85.6	178.4	3200
NKI95/26	95	105	125	26	1	1.5	61.2	117.6	3040

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