China Price GEZ120ES-177ES Spherical Plain Bearing
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SKF
Deep Groove Ball Bearing
ISO 9001
TS 16949
Genuine SKF
50+ Countries
24h Response
-- SKF Authorized Engineering Partner
NTN N2311em NJ2311em Japan High Precision Cylindrical Roller Bearings
Experience smooth, high-precision performance with NTN N2311em Bearings, designed to minimize downtime and maximize productivity in your machinery. These Japan-engineered cylindrical roller bearings deliver exceptional stability, even under heavy loads, thanks to their advanced grease technology and versatile lubrication options (grease or oil).
- Precision-crafted with a specification of 30*72*19mm, ensuring a perfect fit for critical applications where dimensional accuracy is non-negotiable
- Rich stock availability means you get your bearings fast—no waiting, so your operations stay on track
- Backed by a 100.0% on-time delivery rate and responsive service (less than 0.5h response time), because we know your business can’t afford delays
Technical Specifications
- Product Name
- NTN N2311em NJ2311em Japan High Precision Cylindrical Roller Bearings
- Category
- Deep Groove Ball Bearing
- Quality Standard
- ISO 9001 / TS 16949
- Lead Time
- 8-12 Weeks Custom
- Minimum Order
- Negotiable
15+ Certified Engineers On-Call
Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
مواصفات المنتج
معامل
تفاصيل
رقم الطراز
توافر المخزون
الأسهم ذات العائد المرتفع
تكنولوجيا الشحوم
مرتفع
تشحيم
الشحم أو الزيت
فئة الاهتزاز
, خيارات الخدمة
OEM، ODM
متوفر
معدل التسليم في الموعد المحدد
100.0%
زمن الاستجابة
أقل من 0.5 ساعة
حزمة النقل
صندوق كرتوني، منصة نقالة
المواصفات
الأصل
الصين
رمز النظام المنسق
8482102000
القدرة الإنتاجية
200000000 قطعة/سنة
ملاءمة التطبيق
الصناعة
التطبيقات النموذجية
معدات الأتمتة
أنظمة النقل، الآلات الدقيقة
الآلات الصناعية
المضخات الهيدروليكية وعلب التروس السيارات
محاور العجلات، مكونات النقل
Mismatched bearing dimensions causing installation delays, or frequent equipment downtime from low-quality bearings? As industry insiders know, finding the right cylindrical roller bearing—especially across complex model systems—wastes valuable time. When precision and reliability matter, settling for subpar alternatives leads to costly maintenance and unplanned shutdowns. The NTN N2311em NJ2311em cylindrical roller bearings address these challenges with interchangeable dimensions that align with major international standards. Our ISO 9001-certified production ensures each unit meets strict quality benchmarks, from raw material inspection to final hardness testing. With rich stock availability, we eliminate long lead times, whether you need a single replacement for a manufacturing line or bulk orders for automotive assembly. أداء مثالي في ظروف صعبة
Designed to handle radial loads in high-speed applications, these bearings excel in scenarios with moderate misalignment and continuous operation. Their Z1V1 to Z3V3 vibration classes make them suitable for precision machinery where smooth rotation is critical, such as automated conveyor systems or hydraulic equipment. The 30*72*19mm specification balances compact size with load-bearing capacity, fitting seamlessly into standard industrial setups. الميزات الهندسية الرئيسية التي تؤثر على الموثوقية
Three critical attributes set these cylindrical roller bearings apart: High-grade grease technology minimizes friction and extends service life, reducing the need for frequent relubrication. The dual lubrication option—grease or oil—offers flexibility for diverse operating environments, from clean workshops to dusty construction sites. Precision-machined raceways and rollers ensure uniform load distribution, directly translating to lower vibration and longer bearing life under heavy loads. Selecting an under-spec bearing isn’t just a short-term savings—it’s a risk to your equipment’s integrity. A bearing with insufficient load capacity or poor precision can lead to premature wear, increasing friction and energy consumption. Over time, this causes cascading damage to adjacent components, turning a small replacement into a major repair. By investing in bearings like the NTN N2311em NJ2311em, you reduce total cost of ownership through fewer replacements and minimized downtime. جودة يمكنك الاعتماد عليها
Our commitment to quality starts with ISO 9001-certified manufacturing processes, where every bearing undergoes dimensional, hardness, and surface treatment testing. We stand behind our products with a warranty against manufacturing defects, ensuring peace of mind for critical applications. With access to both international brands (NTN, NSK, Koyo) and domestic options, we source exactly what you need—no compromise on specifications or delivery timelines. Whether you need to replace existing bearings or source for a new project, provide your required model, quantity, and delivery location. Our team will respond within 0.5 hours with pricing and availability. With 100% on-time delivery, we ensure your operations stay on schedule—no delays, no surprises. الأسئلة المتكررة
س: هل توفرون ماركات أو طرازات أخرى من المحامل بخلاف تلك المذكورة؟
A: Yes, we offer a full range of bearings across international brands (SKF, NSK, NTN, Koyo, etc.) and domestic manufacturers. Specify your required model or dimensions, and we can source accordingly. س: كيف يمكنني التأكد من أن هذا المحمل مناسب لمعداتي؟
A: Provide your equipment’s make, model, or the bearing’s dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the NTN N2311em NJ2311em specifications. س: ما هي سياسة الضمان الخاصة بكم بالنسبة لهذه المحامل؟
A: We provide a warranty against manufacturing defects. Specific terms are outlined in each order contract, covering replacement or refund for faulty units. س: ما هي الكمية الدنيا للطلب بالنسبة لهذا المحمل؟
ج: نحن ندعم الحد الأدنى المنخفض لكميات الطلبات، بما في ذلك شراء وحدة واحدة للإصلاحات الطارئة، بالإضافة إلى الطلبات بالجملة لتلبية احتياجات الإنتاج.
س: كم يستغرق الشحن، وما هي الطرق المتاحة؟
A: In-stock bearings ship the same day. Shipping time depends on the method: express (2-5 days), air (5-7 days), sea (20-30 days), or road/train for regional deliveries. Q: Can you provide OEM or ODM services for custom bearings? ج: نعم، نقدم خدمات تصنيع المعدات الأصلية (OEM) وتصميم وتصنيع المنتجات (ODM). ما عليك سوى تزويدنا بالرسومات الفنية أو المواصفات، وسنقوم بتصنيع المحامل وفقًا لمتطلباتك بالضبط.
Ready to order or need a quote?
6306-ZNR, 6406, ICOS-D1B06TN9
Delivery Methods
Express, Road, Train, Air, Sea
Sample Availability
30*72*19mm
Trademark Options
BDL, NTN, NSK, NMB, Koyo, NACHI, Timken
Struggling with Cylindrical Roller Bearing Selection? NTN N2311em NJ2311em Delivers Precision
Engineered for Consistent, Long-Term Performance
The Hidden Cost of Choosing the Wrong Bearing
Packaging & Shipping
Get a Quote for NTN N2311em NJ2311em Bearings
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
Contact us via email or phone for immediate assistance.
Wind Power
Main shaft, gearbox, and generator bearings for onshore and offshore wind turbines. Engineered for 20+ year service life.
Mining & Heavy Industry
Crushers, conveyors, and processing equipment bearings designed to withstand shock loads and contaminated environments.
Steel & Metallurgy
Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.
Automotive & EV
Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.
Precision Machinery
Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.
General Industrial
Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
01
Authorized SKF Engineering Partner
Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
02
15+ Certified Engineers On-Staff
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
03
ISO 9001 & TS 16949 Certified QC
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
04
Global Logistics to 50+ Countries
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.
Application Design
EngineeringCustom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Failure Analysis
DiagnosticsRoot-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
Predictive Maintenance
IIoTIIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Custom Modification
CustomModified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
On-Site Installation
SupportCertified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Lifecycle Support
LifecycleLong-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
Request a Technical Consultation & Quote
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.
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