Self-Aligning Roller Bearing 21309CDE4 45x100x25mm for Industrial Machinery P0-P4 Precision
Boost industrial machinery performance with the Self-Aligning Roller Bearing 21309CDE4, engineered to deliver smooth rotation and reduce maintenance downtime in demanding operations. This 45x100x25mm bearing handles radial loads with precision, adapting to misalignment effortlessly to keep your equipment running longer.
- P0-P4 precision grades ensure consistent operation, while C0/C3/C4 clearance options let you tailor performance to specific industrial needs
- Double-row roller design and high-grade bearing steel construction guarantee durability, even in heavy-load applications
- Backed by Saifan’s ISO 9001-certified quality control, this bearing minimizes unexpected failures and supports seamless OEM/ODM integration
Technical Details & Description
Especificaciones del Producto
Parámetro
Detalles
Modelo NO.
Clasificación de Precisión
P0, P6, P5, P4, P2
Liquidación
C0, C3, C4
Cuerpo Rodante
Rodamientos de rodillos
El Número de Filas
Doble
Dimensión Externa
Pequeñas y Medianas (60-115mm)
Material
Acero para rodamientos
Esférico
Alineación de rodamientos
Dirección de Carga
Rodamiento Radial
Separado
No separado
Especificación
Código HS
8482300000
Industrias de Aplicación
Industria
Equipo Típico
Maquinaria Industrial
Maquinaria Agrícola
Tractores, Cosechadoras, Equipos Agrícolas de Alta Resistencia
Construcción
Excavadoras, Cargadoras, Trituradoras
Fabricación
Industrial machinery operators know the cost of unexpected bearing failure—hours of downtime, missed production deadlines, and costly repairs. When your equipment relies on precise rotation under heavy loads, choosing the wrong bearing or settling for low-quality alternatives can derail operations. The 21309CDE4 self-aligning roller bearing is engineered to solve these challenges, delivering consistent performance even in misaligned or high-vibration environments. Designed as a self-aligning roller bearing with a 45x100x25mm dimension, the 21309CDE4 is built to handle radial loads and moderate axial loads common in industrial machinery. Our production process combines high-grade bearing steel with advanced manufacturing techniques, ensuring each unit meets P0-P4 precision standards. Whether you need a single replacement for emergency repairs or bulk orders for production lines, we support flexible MOQ—1 piece for standard bearings—with sample orders available to verify fit and performance before full deployment. Rendimiento Óptimo en Condiciones de Trabajo Exigentes
This double-row self-aligning roller bearing excels in applications where shaft misalignment is inevitable, such as conveyor systems, agricultural equipment, and construction machinery. Its spherical outer ring design allows for angular misalignment up to 2-3 degrees, reducing stress on shafts and extending equipment life. The C0, C3, or C4 clearance options let you tailor the bearing to specific operating conditions, from tight precision setups to high-temperature environments where thermal expansion must be accommodated. Características Técnicas Clave Que Importan
Precision rating directly impacts operational stability: P0 for general industrial use, P5 for high-speed machinery, and P4 for precision applications like CNC spindles. The bearing’s unseparated design simplifies installation and maintenance, while its roller-type rolling elements distribute loads evenly to handle heavy radial pressures. Constructed from high-quality bearing steel, it offers excellent wear resistance and longevity, critical for reducing replacement frequency in heavy-duty equipment. Each unit undergoes rigorous dimensional and performance testing in our in-house laboratory, ensuring compliance with ISO industrial standards. Choosing uncertified bearings may save upfront costs, but the risks are substantial. Counterfeit or substandard bearings often fail prematurely, leading to unexpected downtime, damaged equipment components, and safety hazards. Our 21309CDE4 bearings are produced under ISO 9001:2015 quality management and ISO 14001 environmental systems, with full-process quality control from raw material inspection to finished product testing. The 12-month warranty covers manufacturing defects, providing peace of mind that your investment is protected against premature failure. Por qué los compradores industriales eligen los rodamientos Saifan
With over 18 years of manufacturing and export experience, Saifan Bearings serves industrial clients across Europe, North America, Southeast Asia, and the Middle East. Our one-stop service integrates independent R&D, mass production, and global sales, ensuring consistent supply and technical support. We offer OEM/ODM customization to adjust dimensions, materials, or packaging to your exact requirements, backed by a professional technical team ready to assist with selection, installation, and troubleshooting. Our efficient delivery—3-5 working days for samples and 5-15 days for bulk orders—minimizes downtime for your operations. Embalaje seguro con cartón y paleta para prevenir daños durante el transporte
Los pedidos de muestra se envían dentro de 3-5 días hábiles; los pedidos al por mayor dentro de 5-15 días hábiles
Seguimiento en tiempo real proporcionado para todos los envíos
MOQ flexible: 1 pieza para rodamientos estándar, ideal para reparaciones de emergencia o necesidades de pequeñas series
Don’t let equipment downtime affect your bottom line. Whether you need a single 21309CDE4 bearing for immediate replacement or a bulk order for scheduled maintenance, our team is ready to fulfill your request. Provide your application details, quantity, and precision requirements, and we’ll deliver a competitive quote and fast shipping to get your machinery back in motion. Preguntas Frecuentes
P: ¿Son estos rodamientos genuinos y trazables?
A: Yes, all our bearings are produced in our ISO-certified factory and can be traced through our quality control system. We also supply genuine NSK, INA, and other brand bearings with full authenticity documentation. Q: How do I confirm if the 21309CDE4 fits my equipment? A: Provide your equipment model, operating conditions (load, speed, temperature), and required clearance/precision, and our technical team will verify compatibility and recommend the optimal configuration. P: ¿Cuál es la política de garantía para este rodamiento?
A: We offer a 12-month warranty from the date of delivery, covering manufacturing defects. Defective products can be replaced with your next order or refunded upon verification. Q: What is the minimum order quantity for the 21309CDE4? A: The minimum order quantity is 1 piece for standard bearings, allowing for emergency repairs or small-scale testing. Q: ¿Qué tan rápido puedo recibir mi pedido?
A: Sample orders ship within 3-5 working days, while bulk orders take 5-15 working days. We offer expedited shipping options for urgent requests. Q: ¿Cómo puedo asegurarme de que el rodamiento no es falso?
A: Our bearings include batch codes traceable to production records. We provide test reports and compliance certificates upon request, and our factory is open for customer audits to verify manufacturing processes. Ready to order or need a quote? Free samples available for distributors. 3–5 days production lead time. 5–15 days for bulk orders. T/T, L/C and Alibaba payments accepted. ISO 9001:2015, ISO 14001 certified. ABMA / DIN compliant. 12-month warranty plus dedicated technical failure analysis support.
21309CDE4
45*100*25 mm
Machine Tools, Reducers, Conveyors, Printing Equipment
Textile Machinery, Packaging Equipment, Electric Motors
Stop Production Downtime with Reliable 21309CDE4 Self-Aligning Roller Bearings
21309CDE4 Bearing: Engineered for Industrial Durability
Avoid Hidden Costs of Low-Quality Bearings
Packaging & Shipping
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