Unbeatable Prices & Fast Delivery - Factory Direct 7204B, 7205B, 7206B, 7207B Angular Contact Ball Bearings - KHRD Precision Bearings, ISO Certified
Unbeatable Prices & Fast Delivery - Factory Direct 7204B, 7205B, 7206B, 7207B Angular Contact Ball Bearings - KHRD Precision Bearings, ISO Certified - Image 2
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Estimated delivery time: 3-5 days

Unbeatable Prices & Fast Delivery - Factory Direct 7204B, 7205B, 7206B, 7207B Angular Contact Ball Bearings - KHRD Precision Bearings, ISO Certified

Product Description. High-standard angular contact ball bearings designed for precision machinery. Features optimised internal geometry for axial/radial load support. Ideal for CNC tools, gearboxes, and automotive systems.

  • Models. 7204b, 7205b, 7206b, 7207b
  • Bore Diameter. 20mm-35mm
  • Outer Diameter. 47mm-72mm
  • Width. 14mm-17mm
  • Material. GCr15 Chrome Steel
  • Precision Grade. ABEC-1/P5
  • Dynamic Load. 10.2kN-18.5kN
  • Static Load. 5.8kN-10.3kN
  • Lubrication. Grease or Oil
  • Operating Temp. -30°C to +120°C

Features.
Single-row design | 15°-25° contact angle | Shielded/sealed options | Low noise operation | Extended service life | ISO 9001 certified

Detailed parameters

Table of Contents

Product Specifications & Parameter Comparison

KHRD 7204B-7207B Series Technical Data

Model Inner Diameter (mm) Outer Diameter (mm) Width (mm) Dynamic Load (kN) Static Load (kN) Grease Limit Speed (rpm)
7204B 20 47 14 12.8 8.3 15,000
7205B 25 52 15 14.2 9.1 13,000
7206B 30 62 16 19.5 12.8 10,000
7207B 35 72 17 25.6 16.2 9,500

Detailed Applications of Angular Contact Ball Bearings

Core Industrial Implementations

High-precision angular contact bearings are critical components in.

  • CNC machining centres (axial-radial combined loads)
  • Automotive turbocharger systems
  • High-frequency spindle motors (15,000+ RPM operations)
  • Robotic joint articulation mechanisms
  • Aerospace actuator systems

Installation & Usage Guidelines

Operational Best Practices

  • Precision mounting tolerance: H6/h5 shaft tolerance grade required
  • Thermal management: Limit operational temperature to -30°C ~ +120°C
  • Lubrication intervals: Replenish grease every 800-1,200 operating hours
  • Preload optimization: Maintain 0.02-0.05mm axial clearance for B-type design

Industry-Specific Use Cases

Precision Manufacturing Solution

German CNC lathe manufacturer reduced spindle vibration by 42% after upgrading to 7206B bearings with enhanced raceway geometry, achieving ISO 492 Class 4 accuracy.

Renewable Energy Application

3MW wind turbine yaw systems utilizing 7207B bearings demonstrated 18,000-hour service life under variable axial loads, exceeding OEM requirements by 31%.

Verified Client Success Stories

Case 1: Automotive Transmission Specialist

Client. Zhejiang Drivetech Co., Ltd. (Tier-1 EV supplier)
Challenge. Frequent bearing seizures in 200Nm e-axle assemblies
Solution. Customized 7205B bearings with hybrid ceramic balls
Result. 92% reduction in premature failures, 15% torque improvement

Case 2: Aerospace Component Manufacturer

Client. AeroDynamic Components LLC
Challenge. Meeting AS9100D standards for flight control actuators
Solution. 7204B bearings with vacuum-degassed steel
Result. Passed 10,000-cycle MIL-STD-810H testing with zero deformation

Technical Consultation & Quotation

Engineering Support Services

Our bearing experts provide.

  • 3D CAD models for system integration
  • Fatigue life calculations per ISO 281:2007
  • Custom material solutions (STF-15 steel, Si3N4 ceramics)

Contact Technical Team.
Email. info@vivalr.com
Mobile. (86) 15866781826

About the company

nbearing is a professional bearing firm. We offer top-notch bearing products globally. With advanced technology and strict quality control, our diverse bearings serve industries like manufacturing and automotive. With advanced technology 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 optimise the cost structure and offer cost - effective products, enhancing your profit margin while ensuring quality.

Customisation Service

We tailor bearing solutions according to your specific needs, meeting personalised 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 centres 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.
Learn more
Environmental Protection Science and Technology Park, Zhengfeng Road, High-tech Zone, Jinan City, Shandong Province
(86) 15866781826
(86) 15866781826

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