Self-Aligning Roller Bearings 21320CA 21321CA 21322CA 21324CA W33 for Industrial Machinery
Ensure smooth, reliable rotation for your industrial machinery with our Self-Aligning Roller Bearings—engineered to minimize downtime and handle misalignment effortlessly. Available in models 21320CA, 21321CA, 21322CA, and 21324CA with W33 lubrication grooves, these double-row bearings deliver exceptional radial load capacity and long service life, even in heavy-duty applications.
- Precision grade options (P0-P4) and clearance levels (C0/C3/C4) ensure perfect适配 for machinery like reducers, conveyors, and textile equipment
- Constructed with high-grade bearing steel for stability under fluctuating loads, reducing the need for frequent replacements
- ISO 9001:2015 certified quality with 12-month warranty, backed by our responsive technical support team for installation and maintenance guidance
Technical Details & Description
Especificaciones del Producto
Parámetro
Detalles
Modelo NO.
Clasificación de Precisión
P0 P6 P5 P4 P2
Liquidación
C0 C3 C4
Servicio
OEM ODM
Cuerpo Rodante
Rodamientos de rodillos
El Número de Filas
Doble
Material
Acero para rodamientos
Esférico
Alineación de rodamientos
Dirección de Carga
Rodamiento Radial
Separado
No separado
Dimensión Externa
Paquete de Transporte
Palet de cartón
Especificación
100*215*47 mm
Marca registrada
/ Origen
China
Código HS
8482300000
Capacidad de Producción
1000000
Industrias de Aplicación
Industria
Equipo Típico
Maquinaria Industrial
Herramientas de Máquina, Prensas de Impresión, Reductores
Automotriz
Buajes de rueda, Sistemas de transmisión
Agricultura
Cosechadoras, Tractores
Nueva Energía
Aerogeneradores, Equipos Fotovoltaicos
Construcción
Excavadoras, Maquinaria de Carga Pesada
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failure. When a critical component like a Self-Aligning Roller Bearing fails prematurely, it disrupts production schedules, increases maintenance costs, and leads to missed deadlines. Many face challenges with sourcing bearings that offer both precision and durability, especially when dealing with non-standard requirements or tight lead times. Our Self-Aligning Roller Bearings, including models 21320CA, 21321CA W33, 21322CA, and 21324CA W33, are designed to address these pain points. With double rows of rollers and a spherical outer ring, they accommodate shaft misalignment up to 2 degrees, reducing stress on machinery components. Crafted from high-quality bearing steel, these bearings deliver reliable performance in industrial applications such as machine tools, reducers, and printing presses, where precision and load capacity are essential. Rendimiento Óptimo en Entornos Industriales Exigentes
Self-Aligning Roller Bearings excel in environments with heavy radial loads and moderate axial loads, making them ideal for industrial machinery operating under varying conditions. The 21320CA W33 model, with dimensions 100*215*47 mm, provides the structural support needed for high-torque applications, while the W33 lubrication groove ensures efficient grease distribution for extended service life. Whether your equipment operates at high speeds or under continuous heavy loads, these bearings maintain stability and minimize wear, reducing the risk of unexpected failures. Características Técnicas Clave que Mejoran la Fiabilidad de la Maquinaria
The performance of our Self-Aligning Roller Bearings is defined by critical technical parameters that directly impact machinery efficiency. Precision ratings from P0 to P4 ensure tight tolerances, reducing vibration and noise in high-speed applications. Clearance options (C0, C3, C4) allow customization based on operating temperature and load conditions—C3 and C4 clearances accommodate thermal expansion in high-temperature environments, while C0 suits standard operating conditions. The double-row roller design increases radial load capacity, making these bearings suitable for heavy-duty machinery like crushers and conveyors. Additionally, the unseparated structure simplifies installation and maintenance, ensuring quick replacement during scheduled downtime. Choosing genuine Self-Aligning Roller Bearings over counterfeit alternatives protects your investment in industrial machinery. Counterfeit bearings often fail prematurely due to substandard materials and poor manufacturing, leading to costly repairs and production losses. Our bearings, backed by ISO9001 and ISO14001 certifications, undergo rigorous quality control checks to ensure compliance with international standards. The 12-month global warranty provides peace of mind, covering manufacturing defects and ensuring prompt replacement if issues arise. While counterfeit bearings may offer lower upfront costs, the total cost of ownership—including downtime, repairs, and replacement—is significantly higher than investing in authentic, reliable components. Por qué los compradores industriales eligen los rodamientos Saifan
With over 18 years of experience as an integrated bearing manufacturer and exporter, Jinan Saifan Bearing has established a reputation for reliability in the global market. We serve buyers across Europe, America, Southeast Asia, and the Middle East, offering both OEM/ODM customization and authentic NSK/INA bearings. Our in-house R&D and QC lab ensure consistent quality, while flexible order options—including 1pc MOQ for standard items and 3–5 day sample lead times—cater to both small-scale repairs and large production runs. Technical guidance is available free of charge, helping customers select the right bearing for their specific application. We prioritize transparency, providing full traceability for every product and supporting our claims with verifiable certifications and customer testimonials. Embalaje seguro de cartón y paletas para prevenir daños durante el tránsito
Seguimiento en tiempo real proporcionado para todos los envíos
Devuelva su maquinaria industrial a un rendimiento óptimo
Don’t let bearing issues slow down your production. Whether you need a single 21322CA Bearing for emergency repairs or bulk orders of 21324CA W33 for new machinery, we have the inventory and expertise to meet your needs. Contact us today with your bearing型号, application details, and quantity, and our team will provide a competitive quote within 24 hours. The sooner you secure reliable bearings, the sooner your equipment can return to optimal performance. Preguntas Frecuentes
Q: Are these Self-Aligning Roller Bearings authentic? A: Yes, we supply authentic bearings and are authorized to distribute NSK/INA products. Each bearing comes with traceability documentation to verify its origin and quality. Q: How do I confirm if the 21320CA Bearing fits my machinery? A: Provide your equipment model, operating conditions (load, speed, temperature), and required dimensions. Our technical team will verify compatibility and recommend the optimal bearing type. Q: ¿Cuál es la política de garantía para estos rodamientos?
A: Ofrecemos una garantía global de 12 meses que cubre defectos de fabricación. Si un rodamiento falla bajo condiciones de operación normales, proporcionamos reemplazo gratuito o reembolso.
P: ¿Cuál es la cantidad mínima de pedido?
A: Standard items like the 21320CA W33 have a 1pc MO 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.
21320CA
50-2500
/NMB/
Prevent Costly Downtime with Reliable Self-Aligning Roller Bearings 21320CA for Industrial Machinery
Self-Aligning Roller Bearings Engineered for Heavy Loads and Misalignment
Long-Term Value: Authentic Bearings vs. Counterfeit Risks
Packaging & Shipping
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