Reduce unplanned downtime in paper machine operations with NTN 22215 spherical roller bearings—engineered to minimize vibration and noise in high-load, continuous production environments. These 75x130x31mm precision bearings feature advanced damping technology that stabilizes shaft alignment under fluctuating speeds, directly addressing the reliability challenges of heavy-duty industrial machinery.Low noise operation (≤65dB at 1500rpm) ensures compliance with workplace sound regulations while protecting sensitive paper web qualityISO 9001-certified traceability guarantees genuine NTN components, eliminating customs clearance delays and quality disputesCustomizable internal clearance options (C3 standard, C2/C4 available) accommodate thermal expansion in paper drying sectionsSourced directly from NTN’s Japan manufacturing facility, these bearings come with dedicated technical support to optimize installation and extend service life—backed by our 10+ years of industrial bearing expertise.
Compressive residual stress on raceway surface for crack resistance
40% L10 life improvement vs. industry standard steel
SEALING
Multi-Lip NBR / FKM Seals
Choice of contact (2RS), non-contact (2Z) and metal shielded (ZZ) options. Designed for IP65 dust ingress protection and grease retention.
NBR rated -40°C ~ +120°C / FKM rated up to +200°C
Garter spring tension calibrated for low torque & long sealing life
Customizable food-grade FDA compliant variants available
PRECISION
P0 to P5 Tolerance Class
Precision grades from standard P0 up to P5 (ISO Class 5) for high-speed spindle applications. Inspected on Mahr / Talyrond CMM equipment.
Bore tolerance ±2μm (P5) / Radial runout ≤ 4μm
Raceway roundness controlled within 0.8μm
Vibration class Z2/Z3/Z4 for low-noise applications
CLEARANCE
CN / C3 / C4 Internal Clearance
Internal radial clearance optimized per application -- CN for general use, C3 for thermal expansion, C4 for high-temperature environments.
Optimized load distribution under interference fits
Thermal expansion accommodation up to ΔT 80°C
Custom clearance ranges available for OEM specifications
SECTION 08 / TRUST & TRACEABILITY
100% Genuine NTN. Traceable. Warranted.
We operate as an officially authorized NTN distributor with an unbroken supply chain. Every bearing carries laser-engraved batch codes that can be verified against NTN's factory database.
Authorized Distributor
Direct sourcing from NTN factories with original brand authorization certificate.
Laser Batch Code
Every bearing engraved with traceable batch ID. Verifiable via NTN factory MES system.
Full Documentation
Mill test certificates, COO, COC, packing list -- all export documents provided.
12-Month Warranty
Standard 12-month quality warranty. Free replacement for verified manufacturing defects.
Q.01How can I verify the authenticity of NTN bearings I receive?
Every NTN bearing has laser-engraved batch codes on the inner ring. We provide the original mill test certificate and brand authorization letter with each shipment. You can verify the batch code with NTN factory directly via their official channels.
Q.02What is the typical lead time and minimum order quantity?
In-stock items ship within 5-7 working days. MOQ starts from 1 piece for samples. Bulk orders for OEM customers benefit from priority production scheduling and consolidated shipping. Custom non-standard bearings typically take 30-45 days.
Q.03Do you offer OEM customization (clearance, sealing, precision)?
Yes. We support custom internal clearance (CN/C3/C4/C5), sealing options (2RS/ZZ/Open), precision class (P0/P6/P5), special grease, and neutral packaging. Submit your engineering drawing and we will return a feasibility report within 72 hours.
Q.04What documentation is provided for international shipping?
Standard export documents include: Commercial Invoice, Packing List, Bill of Lading / Air Waybill, Certificate of Origin (Form A / E / FTA), Certificate of Conformity, NTN Mill Test Certificate, and Brand Authorization Letter. Customs HS code and country-specific requirements are pre-checked.
Q.05What is your warranty and return policy?
We offer a standard 12-month quality warranty from shipping date for verified manufacturing defects. Defective products are replaced free of charge. Failure analysis reports are provided to support root cause investigation. Wear due to misapplication or improper installation is excluded.
Q.06Can you ship under DDP terms to my country?
Yes. We support EXW, FOB, CIF, CFR, and DDP terms. Our logistics team handles customs clearance, duties, and last-mile delivery for DDP shipments to 50+ countries. For sensitive markets, we recommend DDP to avoid customs delays.
PRODUCT DESCRIPTION
Detailed Product Information
Reduce unplanned downtime in paper machine operations with NTN 22215 spherical roller bearings—engineered to minimize vibration and noise in high-load, continuous production environments. These 75x130x31mm precision bearings feature advanced damping technology that stabilizes shaft alignment under fluctuating speeds, directly addressing the reliability challenges of heavy-duty industrial machinery.
Low noise operation (≤65dB at 1500rpm) ensures compliance with workplace sound regulations while protecting sensitive paper web quality
ISO 9001-certified traceability guarantees genuine NTN components, eliminating customs clearance delays and quality disputes
Customizable internal clearance options (C3 standard, C2/C4 available) accommodate thermal expansion in paper drying sections
Sourced directly from NTN’s Japan manufacturing facility, these bearings come with dedicated technical support to optimize installation and extend service life—backed by our 10+ years of industrial bearing expertise.
يواجه مصنعو الورق تحديات حرجة بسبب فشل المحامل - حيث يكلف التوقف غير المخطط له بسبب التآكل المبكر آلاف الدولارات من الإنتاج المفقود، بينما تؤدي المحامل المزيفة التي تفتقر إلى وثائق التتبع إلى تأخيرات جمركية ونزاعات حول الجودة. تعمل قنوات التوزيع متعددة المستويات على تمديد أوقات التسليم بنسبة 30-50%، مما يجعل من المستحيل تقريبًا التوافق مع جداول الإنتاج الضيقة.
محامل أصلية
22215 مع تخميد اهتزاز مثبت
As an official NTN distributor, we supply authentic 22215 spherical roller bearings designed specifically for paper machine applications. These 75x130x31mm bearings feature low noise operation and vibration damping properties that minimize machine resonance during high-speed rotation. Our ISO 9001 compliant three-level quality inspection ensures each unit meets NTN’s strict performance standards, while WMS real-time inventory guarantees on-time delivery for both scheduled maintenance and emergency replacements.
أداء محسّن لظروف آلة الورق تتميز محامل الأسطوانة الكروية 22215 في البيئات القاسية لآلات الورق، حيث تتحمل الأحمال الشعاعية والمحورية التي تصل إلى 200 كيلو نيوتن أثناء التشغيل بسرعات تصل إلى 3,600 دورة/دقيقة. يقلل تصميم تخميد الاهتزاز من تأثير الأسطوانة على مجرى السباق، وهو أمر بالغ الأهمية للحفاظ على الدقة في بكرات الضغط وأنظمة التقويم. يوفر قطر التجويف البالغ 75 مم والعرض البالغ 31 مم توزيعًا مثاليًا للحمل، مما يجعلها مثالية لأنظمة النقل الثقيلة وأقسام التجفيف حيث تتطلب تغيرات درجات الحرارة أداءً ثابتًا.
الميزات التقنية التي تزيد من وقت التشغيل
The 22215 bearing’s long life capability stems from NTN’s precision manufacturing—tighter tolerances ensure uniform load distribution across the roller set, extending service intervals by up to 40% compared to non-branded alternatives. High-speed compatibility is achieved through optimized cage design, which reduces centrifugal forces at elevated RPMs. Low noise operation (below 65 dB at rated speed) meets paper industry standards for workplace acoustics, while customizable options allow adaptation to specific machine configurations, from seal types to lubrication specifications.
لماذا أصلية
محامل تخفض التكلفة الإجمالية للملكية
قد تقدم المحامل الكروية الأسطوانية المقلدة أسعارًا أولية أقل، لكنها عادةً ما تفشل خلال 30-50% من العمر الافتراضي المتوقع للوحدات الأصلية
. يمكن أن يكلف التوقف غير المخطط له في مصنع الورق ما بين 15,000 إلى 50,000 دولار من الإنتاج المفقود - متجاوزًا بسهولة أي وفورات أولية. تأتي محاملنا مع وثائق تتبع كاملة، مما يلغي تأخيرات التخليص الجمركي ويوفر حماية من المسؤولية في نزاعات الجودة. باختيار محامل
With over 10 years as an NTN authorized distributor, we’ve served paper mills across 50+ countries, including major producers in Southeast Asia and Europe. Our technical team provides free application analysis, helping you select the optimal bearing clearance and lubrication for your specific paper machine model. We maintain dedicated inventory for high-demand sizes like the 22215, enabling door-to-door delivery within 72 hours to most industrial regions. Every order includes NTN’s original packaging with anti-counterfeit labels and full export documentation, from material certificates to compliance declarations.
Packaging & Shipping
أصلية
عبوة مع ملصقات مضادة للتزييف ووثائق تتبع المنتج
تغليف آمن للكرتون على منصة نقالة لمنع التلف أثناء النقل
خدمات لوجستية عالمية من الباب إلى الباب عبر DHL أو FedEx أو خيارات الشحن البحري
تتبع الشحنة في الوقت الفعلي وتأكيد التسليم
كميات طلب مرنة—من وحدات فردية للإصلاحات الطارئة إلى توريد OEM بالجملة
احصل على
محامل 22215 الخاصة بك مشحونة اليوم
Don’t let bearing issues disrupt your production schedule. Send us your equipment model, operating speed, and required quantity, and our technical team will confirm compatibility and provide a formal quotation within 24 hours. With our WMS real-time inventory, most orders ship within 3 business days—keeping your paper machines running and your production on track.
الأسئلة الشائعة
س: هل هذه محامل أصلية؟
A: Yes, we are an official NTN authorized distributor. Every 22215 bearing comes with NTN’s original packaging, anti-counterfeit labels, and full traceability documentation to verify authenticity.
س: كيف يمكنني التأكد من توافق 22215 مع آلة الورق الخاصة بي؟
A: Provide your machine model, roller diameter, operating speed, and load conditions. Our technical team will cross-reference NTN’s application database to confirm compatibility at no cost.
س: ما هي سياسة الضمان؟
A: All NTN bearings are covered by NTN’s standard manufacturer warranty, which includes replacement for defects in materials or workmanship. We provide full warranty support and documentation.
س: ما هو الحد الأدنى لكمية الطلب؟
نقبل الطلبات لوحدات مفردة لدعم الإصلاحات الطارئة، دون شرط الحد الأدنى للطلب. تتوفر خصومات الكمية للمشتريات بالجملة ولمشتريات OEM.
س: كم من الوقت يستغرق الشحن إلى [my location]؟
أ: بفضل شبكتنا اللوجستية العالمية، يستغرق التسليم القياسي من 3 إلى 7 أيام عمل عبر البريد السريع (DHL/FedEx/UPS). تتوفر خيارات الشحن البحري للطلبات بالجملة مع أوقات تسليم أطول.
س: كيف يمكنني التحقق من صحة المحامل عند الاستلام؟
A: Each bearing includes NTN’s unique laser marking and packaging with QR code verification. We also provide a signed authorization certificate and batch traceability report with every order.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
Submit your inquiry below. Our senior application engineers will respond within 24 hours with a formal quotation, brand authorization, and traceability certificate.
