Roller Bearing

Self-Aligning Roller Bearing 21320CA 21321CA 21322CA 21324CA W33 for Industrial Machinery

SKU: 4592854b4b3a In Stock

Minimize downtime and maximize machinery performance with our Self-Aligning Roller Bearing series (21320CA, 21321CA, 21322CA, 21324CA W33), engineered to keep industrial equipment running smoothly even under misalignment or heavy radial loads. Crafted from high-grade bearing steel with P0-P4 precision ratings and C0/C3/C4 clearance options, these double-row bearings deliver exceptional durability and consistent rotation for machine tools, conveyors, and heavy-duty industrial machinery.

  • Self-aligning design compensates for shaft deflection, reducing wear and extending service life in demanding operating conditions
  • 100*215*47mm specification (21320CA) with W33 lubrication groove ensures easy maintenance and optimal performance
  • Backed by our ISO 9001-certified quality control and 12-month warranty, providing reliable support for your production line
Wholesale Price (FOB)
¥1.00
MOQ: 1 Piece • Bulk discounts available on inquiry
12-Month Warranty
Free Samples
Global Shipping
Product Specifications

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

50-2500

Especificación

100*215*47 mm

Origen

China

Código HS

8482300000

21320CA

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

Construcción

Excavadoras, Equipos de Carga Pesada

Nueva Energía

Aerogeneradores, Equipos Solares

Minimize Downtime with Reliable Self-Aligning Roller Bearings 21320CA-21324CA W33

Industrial machinery operators know the cost of unexpected downtime—hours lost to bearing failures, missed production deadlines, and emergency repair costs. When standard bearings can’t handle misalignment or heavy radial loads, equipment performance suffers. Sourcing precision bearings with flexible order options often means compromising on lead times or quality.

Engineered for Heavy Loads and Misalignment in Industrial Machinery

Our Self-Aligning Roller Bearings, including models 21320CA, 21321CA W33, 21322CA, and 21324CA W33, are designed to solve these challenges. With double rows of rollers and a spherical outer ring, they accommodate shaft misalignment up to 2 degrees, reducing stress on machinery components. Ideal for industrial gearboxes, conveyors, and heavy-duty pumps, these bearings deliver consistent performance even under variable loads.

Rendimiento Óptimo en Condiciones Industriales Exigentes

Self-Aligning Roller Bearings excel in applications requiring high radial load capacity and resistance to shock. Whether in mining equipment, steel mills, or agricultural machinery, their robust bearing steel construction ensures durability in dusty, high-vibration environments. The W33 designation indicates a lubrication groove and three oil holes in the outer ring, enabling efficient maintenance and extended service life in continuous-operation systems.

Características técnicas que maximizan el tiempo de actividad de la maquinaria

Precision rating options from P0 to P2 allow customization for specific accuracy needs—P5 and P4 grades suit high-speed machinery where minimal runout is critical. Clearance classes C0 (normal), C3 (increased), and C4 (greater) accommodate thermal expansion in applications like rolling mills or generators. The unseparated design simplifies installation, while the double-row roller configuration distributes loads evenly, reducing wear and extending bearing life by up to 30% compared to single-row alternatives.

Por qué los rodamientos auténticos son importantes para el costo total de propiedad

Counterfeit bearings may offer lower upfront costs, but they often fail prematurely due to substandard materials and poor manufacturing. A single bearing failure in a critical machine can cost thousands in downtime and repairs. Our bearings meet ISO 9001 quality standards, with each unit tested for dimensional accuracy and load capacity. Choosing genuine Self-Aligning Roller Bearings reduces the risk of unexpected failures, lowering long-term maintenance costs and protecting your production schedule.

Su Socio de Confianza para Soluciones de Rodamientos Desde 2005

With over 18 years serving global industrial clients, Jinan Saifan Bearing combines manufacturing expertise with responsive service. Our ISO 9001 and ISO 14001 certifications ensure consistent quality, from raw material inspection to final production. We offer OEM/ODM customization to meet unique specifications, backed by a 12-month global warranty and free technical support. Our flexible order policy—1pc MOQ for standard items, 3–5 day sample lead time, and 5–15 day bulk delivery—means you get the bearings you need when you need them.

Packaging & Shipping

    Embalaje en cartón y paletas para un transporte seguro

    Tiempo de entrega de muestra: 3–5 días para artículos estándar

    Entrega a granel: 5–15 días después de la confirmación del pedido

    Envío global a través de T/T, tarjeta de crédito o términos comerciales de Alibaba

    1pc MOQ disponible para reparaciones de emergencia y pedidos de pequeñas cantidades

Get Your Self-Aligning Roller Bearings Delivered Fast

Don’t let bearing issues slow down your operations. Whether you need 21320CA, 21321CA W33, 21322CA, or 21324CA W33 bearings, we have the inventory and expertise to fulfill your order quickly. Send us your requirements today and minimize downtime with reliable, precision-engineered bearings.

Preguntas Frecuentes

P: ¿Son estos rodamientos auténticos y trazables?

A: Yes, we maintain full supply chain transparency and can provide certification of authenticity for all products.

P: ¿Cómo confirmo el modelo de rodamiento correcto para mi equipo?

A: Share your equipment model, load requirements, and operating conditions—our technical team will help verify the correct specification.

P: ¿Cuál es su política de garantía?

A: Ofrecemos una garantía global de 12 meses que cubre defectos de fabricación, con reemplazo o reembolso gratuito disponible.

P: ¿Cuál es la cantidad mínima de pedido?

A: 1pc MOQ for standard items, ideal for emergency repairs or small-scale projects.

P: ¿Qué tan rápido pueden enviar mi pedido?

A: Samples ship in 3–5 days, bulk orders in 5–15 days, with flexible shipping options to meet your timeline.

Q: How can I verify the quality of the bearings?

A: All bearings undergo rigorous QC testing, and we can provide test reports upon request to confirm compliance with stated specifications.

Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.

Sample Policy

Free samples available for distributors. 3–5 days production lead time.

Bulk Delivery

5–15 days for bulk orders. T/T, L/C and Alibaba payments accepted.

Certifications

ISO 9001:2015, ISO 14001 certified. ABMA / DIN compliant.

After-Sales

12-month warranty plus dedicated technical failure analysis support.

Engineering Insights

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