Saifan Bearing
NTN Bearings
Heavy Duty NTN Spherical Roller Bearing 21307 35x80x21mm for Industrial Machinery
Heavy Duty NTN Spherical Roller Bearing 21307 35x80x21mm for Industrial Machinery
Heavy Duty NTN Spherical Roller Bearing 21307 35x80x21mm for Industrial Machinery
Heavy Duty NTN Spherical Roller Bearing 21307 35x80x21mm for Industrial Machinery
Heavy Duty NTN Spherical Roller Bearing 21307 35x80x21mm for Industrial Machinery
Heavy Duty NTN Spherical Roller Bearing 21307 35x80x21mm for Industrial Machinery
Heavy Duty NTN Spherical Roller Bearing 21307 35x80x21mm for Industrial Machinery
Heavy Duty NTN Spherical Roller Bearing 21307 35x80x21mm for Industrial Machinery
Heavy Duty NTN Spherical Roller Bearing 21307 35x80x21mm for Industrial Machinery
Heavy Duty NTN Spherical Roller Bearing 21307 35x80x21mm for Industrial Machinery
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Heavy Duty NTN Spherical Roller Bearing 21307 35x80x21mm for Industrial Machinery

SKU: 3265b276d4c7

Ensure smooth, reliable operation for your industrial machinery with the NTN 21307 spherical roller bearing, engineered to deliver long life and high-speed performance even under heavy loads. This 35x80x21mm heavy-duty component minimizes downtime in gearboxes, fans, and automotive applications, thanks to its precision design and low noise operation.

  • Customizable to your specifications, with samples available to verify fit before bulk orders
  • Built to handle the rigors of industrial use, from manufacturing equipment to agricultural machinery
  • Backed by Saifan Bearings' commitment to quality, ensuring consistent performance and peace of mind
Factory Price
¥1.05
MOQ: 1pc · Bulk discount available
ISO 9001
Certified
12-Month
Warranty
3-5 Days
Sample Delivery
Technical Documentation

Product Details

Especificaciones del Producto

Parámetro

Detalles

Modelo NO.

Característica

Larga Vida, Alta Velocidad, Bajo Ruido

Especificación

Marca registrada

Origen

Japón

Código HS

8482300000

Paquete de Transporte

Palet de Cartón

Tamaño del paquete

Peso Bruto del Paquete

21307
35x80x21mm
NTN
Sample Available
Customerized Customizable
5.50cm × 10.00cm × 4.50cm
0.550kg

Industrias de Aplicación

Industria

Equipo Típico

Fabricación Industrial

Automotriz

Sistemas de Transmisión, Ejes

Gearboxes, Conveyors, Reducers
HVAC Industrial Fans, Pumps

Minimize Downtime with Genuine NTN 21307 Spherical Roller Bearing

Equipment failures due to substandard bearings cost manufacturers thousands in lost production each year. When a spherical roller bearing fails prematurely in critical machinery like gearboxes or conveyors, the downtime can halt entire production lines. Sourcing authentic bearings with reliable delivery and proper technical support remains a challenge for many maintenance teams and buyers.

Genuine NTN 21307 Bearings Delivered When You Need Them

The NTN 21307 spherical roller bearing is engineered to address these pain points with its long service life, high-speed capability, and low noise operation. As a professional bearing supplier with decades of export experience, we stock genuine NTN bearings to ensure quick fulfillment—sample orders ship within 3-5 working days and bulk orders within 5-15 days. This 35x80x21mm industrial machinery bearing is ideal for applications requiring heavy-duty performance, from gearboxes to industrial fans.

Diseñado para Condiciones Industriales de Alta Carga

This NTN spherical roller bearing excels in demanding environments where heavy radial and axial loads are present. Its robust design handles high-speed rotation while maintaining stability, making it suitable for continuous operation in industrial machinery. Whether used in manufacturing equipment, automotive transmission systems, or large fans, the 21307 bearing delivers consistent performance under varying load conditions.

Características técnicas clave para un funcionamiento confiable

The 35mm bore diameter, 80mm outer diameter, and 21mm width of the NTN 21307 make it a versatile choice for standard industrial applications. Its low noise operation (Z2-Z4 grade equivalent) ensures compatibility with noise-sensitive environments, while the long-life design reduces maintenance frequency. The bearing's high-speed capability allows integration into dynamic systems without compromising performance, and its customizable options mean it can be adapted to specific application requirements when standard configurations aren't sufficient.

Por qué la Autenticidad Importa para Su Resultado Final

Counterfeit spherical roller bearings may offer lower upfront costs but often result in hidden expenses: premature failures, increased energy consumption, and potential damage to connected components. Genuine NTN bearings meet strict international standards (ISO, ABMA, DIN) and undergo rigorous quality control, ensuring predictable performance and longer service intervals. Investing in authentic industrial machinery bearings reduces total cost of ownership by minimizing unplanned downtime and maintenance expenses.

Nuestro Compromiso con el Suministro Confiable

With ISO 9001:2015 and ISO 14001 certifications, we maintain strict quality management throughout our supply chain. Our one-stop service covers everything from bearing selection to global delivery, supported by a professional technical team with extensive application experience. We offer flexible ordering with 1 piece MOQ for standard bearings and provide free samples (freight paid by customer) to distributors and wholesalers. All products come with a 12-month warranty, with free replacement or refund available for qualified defective items.

Embalaje y Envío

  • Original NTN packaging with carton pallet for secure transportation
  • Los pedidos de muestra se envían dentro de 3-5 días hábiles

    Pedidos al por mayor entregados en 5-15 días hábiles

    Múltiples opciones logísticas, incluyendo exprés, aéreo y flete marítimo

    1 pieza MOQ disponible para rodamientos estándar

Get Your NTN 21307 Bearing Today

Don't let bearing issues disrupt your operations. Whether you need a single unit for emergency repair or bulk quantities for production, we ensure prompt delivery of genuine NTN 21307 spherical roller bearings. Contact us with your requirements, and our technical team will help confirm compatibility with your equipment.

Preguntas Frecuentes

Q: ¿Son estos rodamientos genuinos?

A: Yes, we supply genuine original NTN bearings sourced through authorized channels, ensuring full traceability and authenticity.

Q: How do I confirm if the 21307 is compatible with my equipment?

A: Provide your equipment model or technical specifications, and our professional team will verify compatibility and offer selection guidance.

Q: ¿Cuál es el período de garantía para este rodamiento?

A: All NTN bearings come with a 12-month warranty from the date of customer receipt, covering manufacturing defects.

P: ¿Cuál es la cantidad mínima de pedido?

A: We accept 1 piece MOQ for standard bearings, supporting both emergency repairs and small-batch purchases.

P: ¿Cuánto tiempo tarda el envío?

A: Sample orders ship within 3-5 working days, while bulk orders take 5-15 working days depending on quantity and destination.

P: ¿Cómo puedo verificar la autenticidad del rodamiento?

A: Genuine NTN bearings feature proper branding, packaging, and serial numbers. We provide documentation to support traceability upon request.

¿Listo para hacer un pedido o necesita una cotización?

Envíe su designación de rodamiento, detalles de la aplicación y cantidad — responderemos dentro de 24 horas.

Quality Assurance
100% Inspection

High-grade chrome steel, raw material QC, full-process monitoring, ISO/ABMA/DIN compliance.

Delivery
3-15 Days

Samples in 3-5 days, bulk orders 5-15 days. Free samples for distributors (freight collect).

Customization
Full OEM/ODM

P0-P4 precision grades, Z2-Z3-Z4 noise levels. Custom drawings welcome.

After-Sales
12-Month Warranty

Professional technical guidance and failure solutions from our R&D team.

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**解析**:  
- **主关键词前置**:"Heavy Duty SKF Spherical Roller Bearing"(前30字符内包含核心关键词和具体优势)  
- **具体优势**:"Heavy Duty"(符合“特定产品优势”要求,非泛化形容词)  
- **规格明确**:包含型号"23944 23948 23956 CC/W33",符合供应商内容中的型号信息  
- **应用场景**:"for Industrial Machinery"(匹配[系统背景]中工业机械设备制造商的需求,体现实际使用场景)  
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Need a Custom Solution?

Our R&D team supports full OEM/ODM customization with technical drawings. Contact us for stable factory pricing and reliable supply.