Affordable Machine Tool Auto Parts: Nj215em, Nj216-228 Cylindrical Roller Bearings - Fast Delivery, Factory Prices, Pro Supplier, Int'l Standards
Affordable Machine Tool Auto Parts: Nj215em, Nj216-228 Cylindrical Roller Bearings - Fast Delivery, Factory Prices, Pro Supplier, Int'l Standards - 图片 2
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Affordable Machine Tool Auto Parts: Nj215em, Nj216-228 Cylindrical Roller Bearings - Fast Delivery, Factory Prices, Pro Supplier, Int'l Standards

Industrial-grade cylindrical roller bearings designed for machine tools and automotive parts. This series (NJ215EM, NJ216, NJ217, NJ218, NJ219, NJ220, NJ222, NJ224, NJ226, NJ228) ensures high radial load capacity, durability, and precision in demanding environments. Manufactured with premium steel for enhanced heat resistance and wear reduction.

  • Models: NJ215EM, NJ216, NJ217, NJ218, NJ219, NJ220, NJ222, NJ224, NJ226, NJ228
  • Inner Diameter (ID): 75mm (NJ215EM) to 140mm (NJ228)
  • Outer Diameter (OD): 130mm (NJ215EM) to 250mm (NJ228)
  • Thickness: 31mm (NJ215EM) to 68mm (NJ228)
  • Cage Material: Steel stamping or brass
  • Precision Rating: ABEC-1/P0 standard (higher available)
  • Dynamic Load Capacity: Up to 245kN (NJ228)
  • Static Load Capacity: Up to 305kN (NJ228)
  • Max Speed: 3000-4500 rpm (grease lubrication)
  • Operating Temperature: -30°C to +150°C

Detailed parameters

Table of Contents

1. Product Specifications & Comparative Analysis

NJ Series cylindrical roller bearings (NJ215EM-NJ228) are precision-engineered for heavy radial loads in rotating machinery. Key parameters include:

Model Inner Diameter (mm) Outer Diameter (mm) Dynamic Load Rating (kN) Grease Speed Limit (rpm)
NJ215EM 75 130 168 3,800
NJ220EM 100 180 245 3,200
NJ228EM 140 250 395 2,600

Critical differentiation factors:

  • NJ-series single flange design vs. NUP-type double flange for axial displacement control[8]
  • EM suffix indicates enhanced manganese cage for 15% higher shock resistance[8]

2. Industrial Applications & Functional Advantages

Primary industrial deployments include:

  • Machine Tool Spindles: Precision alignment in CNC lathes (radial runout < 0.005mm)[7]
  • Gearbox Systems: 20% higher torque capacity vs. tapered alternatives[8]
  • Mining Conveyors: IP6X dust protection standard for harsh environments

3. Operational Case Studies

Automotive Transmission Retrofit

A Tier-1 supplier reduced warranty claims by 40% after upgrading to NJ217EM bearings in dual-clutch transmissions, achieving:

  • 35,000-hour operational lifespan under 12kN radial loads
  • Temperature stability up to 150°C without lubrication breakdown

4. Verified Client Implementations

Heavy Machinery Manufacturer (Germany)

  • Replaced competitor bearings with NJ224EM in tunnel boring equipment
  • Result: 62% reduction in downtime from 142hrs/month to 54hrs/month

Wind Turbine Service Provider (China)

  • Implemented NJ226EM in yaw drive systems
  • Outcome: 18-month maintenance intervals extended to 28 months

5. Technical Consultation & Procurement

Our engineering team provides:

  • 3D modeling for system integration validation
  • Custom lubrication solutions (-40°C to 200°C operational range)

Contact our bearing specialists:
Email: info@vivalr.com
Tel: (86) 15866781826

References

[7] 滚子轴承术语对照表
[8] 圆柱滚子轴承技术参数

About the company

nbearing is a professional bearing firm. We offer top-notch bearing products globally. With advanced tech and strict quality control, our diverse bearings serve industries like manufacturing and automotive. Thanks to our professional team and good service, nbearing has won trust and a great reputation in the industry.

Why Collaborate with NBearing? Eight Reasons for a Win - win Partnership

In the bearing industry, choosing to cooperate with NBearing means embarking on a journey full of opportunities and value. We become your ideal partner with numerous outstanding advantages.

Exceptional Quality

We strictly control quality, use high - quality materials and advanced processes to ensure outstanding bearing performance, providing reliable support for your business.

Diverse Range

Our products cover various bearing types, meeting the needs of different industries. One - stop procurement saves you time and effort.

Competitive Pricing

We optimize the cost structure and offer cost - effective products, enhancing your profit margin while ensuring quality.

Customization Service

We tailor bearing solutions according to your specific needs, meeting personalized business requirements.

Efficient Production

Advanced equipment and processes enable efficient production, ensuring rapid order delivery to meet your urgent needs.

Punctual Delivery

With a 99.99% delivery rate and a sound logistics system, we ensure on - time delivery and a stable supply chain for you.

Professional Team

Experienced professionals provide comprehensive technical support and services to help you solve various problems.

Long - term Partnership

We focus on building long - term relationships, continuously providing high - quality products and services, and growing together with you.

Why Chem-iso’s delivery rate is guaranteed to be 99.99%

500+

Cooperate with 500+ suppliers for stable raw material supply.

99%

99% automated production ensures on-time order completion.

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10 global warehousing centers enable efficient order response.

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Partner with 8 top logistics for punctual goods delivery.

Trusted By 3,500+ Creatives & Businesses

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Join Hands with NBearing, Build a Distinguished Brand Together

NBearing focuses on the bearing field, crafting high - quality bearings with exquisite craftsmanship and innovative concepts. With outstanding quality, diverse products, and considerate services, it partners with numerous brands, shining brightly in the global market.
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Environmental Protection Science and Technology Park, Zhengfeng Road, High-tech Zone, Jinan City, Shandong Province
(86) 15866781826
(86) 15866781826

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