-- SKF Authorized Engineering Partner
Keep your machinery running smoothly with the reliable 639/6 Deep Groove Ball Bearing, designed to minimize downtime and maintain consistent performance in high-precision applications. Available in 639/6-Z and 639/6-2Z variants, this bearing ensures reduced friction and extended service life whether lubricated with grease or oil.
15+ Certified Engineers On-Call
Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
مواصفات المنتج
معامل
تفاصيل
رقم الطراز
تشحيم
الشحم أو الزيت
تصنيف الدقة
P0، P6، P5، P4، P2
اهتزاز
, الشهادة المخزون متوفر خدمة
OEM، ODM
محاذاة
محمل غير متماشي
مفصول
مفصول
عدد الصفوف
فردي
اتجاه التحميل
محمل الدفع
المادة
فولاذ المحامل
حزمة النقل
كرتون باليت
المواصفات
علامة تجارية
الأصل
اليابان
رمز النظام المنسق
8482102000
ملاءمة التطبيق
الصناعة
التطبيقات النموذجية
معدات الأتمتة
الآلات الصناعية
Finding the right bearing for your equipment often means sifting through countless models and brands, only to face delays from suppliers with limited stock. Many buyers end up with mismatched dimensions or subpar materials that cause premature wear, leading to unexpected downtime and repair costs. When precision and availability matter, a trusted supplier with a comprehensive inventory can make all the difference. مصممة لتوفير أداء ثابت في التطبيقات الحرجة
The 639/6 deep groove ball bearing series—including 639/6-Z and 639/6-2Z variants—addresses these challenges with reliable design and ready availability. As a supplier with ISO 9001:2008 certified processes, we ensure each bearing meets strict quality standards, from raw material inspection to final dimensional checks. Whether you need standard sealed versions or custom configurations, our in-stock inventory supports quick turnaround for industries ranging from automation to industrial machinery. Designed for single-row radial applications, this deep groove ball bearing excels in environments with moderate speeds and combined radial and axial loads. Its non-aligning design requires precise shaft alignment, making it ideal for compact assemblies where space is limited. The 17x30x9 mm规格 ensures compatibility with standard equipment, while options for grease or oil lubrication allow adaptability to operating temperatures and contamination levels. الميزات الهندسية الرئيسية التي تؤثر على العمر الافتراضي
The bearing’s bearing steel construction provides high surface hardness and wear resistance, critical for withstanding cyclic loading in machinery. Precision ratings from P0 to P2 allow selection based on application requirements—P5 or higher for machine tools requiring minimal runout, and P0 for general industrial use. Vibration classes Z1V1 to Z3V3 further tailor performance: Z3V3 variants reduce noise and vibration in precision equipment, while Z1V1 offers a cost-effective solution for less demanding applications. Sealed versions (639/6-Z, 639/6-2Z) extend maintenance intervals by preventing lubricant loss and contaminant ingress. لماذا يؤدي اختيار المحمل المناسب إلى خفض التكلفة الإجمالية Selecting a bearing based solely on upfront cost often leads to higher long-term expenses. A bearing with insufficient precision or material quality may fail early, causing production halts and damage to adjacent components. Our 639/6 series, built to international standards, minimizes these risks through rigorous testing, including hardness checks and dimensional verification. By matching the bearing’s specifications—such as precision class and lubrication type—to your application, you reduce unplanned downtime and extend equipment life, ultimately lowering total ownership costs. جودة يمكنك التحقق منها من خلال عمليات شفافة
Our commitment to trustworthiness starts with ISO 9001:2008 certified production and inspection protocols. Each bearing undergoes dimensional testing to ensure compliance with stated specifications, and material certificates are available upon request. We stand behind our products with a warranty against manufacturing defects, and our ability to source from leading brands like NSK ensures consistent quality. For customized needs, OEM/ODM services allow adaptation to unique application requirements, backed by the same strict quality controls. الحد الأدنى لكمية الطلب: ندعم الحد الأدنى المنخفض لكمية الطلب، وهو خيار مثالي لكل من الإصلاحات الصغيرة والإنتاج على نطاق واسع
Whether you need the standard 639/6, sealed 639/6-Z, or double-sealed 639/6-2Z variant, we can provide pricing and availability within hours. Share your required model, quantity, and delivery location, and our team will confirm stock and lead time. For cross-referencing or替代型号 recommendations, include your equipment details, and we’ll assist in ensuring compatibility. الأسئلة المتكررة
س: هل يمكنكم توريد ماركات أو طرازات أخرى من المحامل بخلاف تلك المذكورة؟
A: Yes, we support procurement of all major international and domestic brands, including SKF, NTN, Koyo, and FAG, as well as custom models to your specifications. Q: How do I confirm if the 639/6 bearing fits my equipment? A: Provide your equipment’s bearing dimensions (inner diameter x outer diameter x width) or original part number, and our technical team will verify compatibility with the 639/6 series. س: ما هي سياسة الضمان الخاصة بكم بالنسبة لهذه المحامل؟
A: We offer a warranty against manufacturing defects; specific terms are detailed in each order’s contract. Defective products may be returned or replaced at our discretion. Q: What is the minimum order quantity for the 639/6 bearing? A: We accept low minimum orders, including single units for emergency repairs, with volume discounts available for larger quantities. س: كم من الوقت يمكنكم شحن المحامل المتوفرة في المخزون؟
A: In-stock items are typically shipped within 1-2 business days via your preferred logistics method (courier, air, or sea). Q: Do you offer OEM/ODM services for custom bearing requirements? A: Yes, we provide OEM/ODM services, including custom dimensions, materials, and packaging, tailored to your application needs. Ready to order or need a quote?
51103, 51208
:2008
17*30*9 mm
NSK
Linear actuators, hydraulic cylinder end supports
Machine Tools
Spindle assemblies, vertical turret lathes
Presses, injection molding machines, gearboxes
Need Reliable 639/6 Deep Groove Ball Bearings? Avoid Common Selection Mistakes
Optimal Performance in Radial and Light Thrust Load Scenarios
Packaging & Shipping
Get a Quote for Your 639/6 Bearing Requirements
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time
Main shaft, gearbox, and generator bearings for onshore and offshore wind turbines. Engineered for 20+ year service life.
Crushers, conveyors, and processing equipment bearings designed to withstand shock loads and contaminated environments.
Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.
Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.
Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.
Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.
Performance Metrics
35%
Failures Prevented
70%
Downtime Reduction
25+
Years Experience
24h
Quote Response
78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.
Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Long-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.
Free samples available for orders over $50K
Validated against your KPIs before full production commitment.
-- Get In Touch
Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.
Address
No. 377 Bansongyuan Road, Huangpu District, Shanghai, China
Free Sample Program
Orders over $50K qualify for free product samples
Test against your KPIs before full production commitment. Ask our engineers for details.
Regarding: 639/6 Deep Groove Ball Bearing 639/6-Z 639/6-2z Discount
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