Self-Aligning Roller Bearings 21304-21309 for Metallurgy Machinery High Precision P0-P4
Ensure smooth, high-precision rotation in your metallurgy machinery with Self-Aligning Roller Bearings 21304-21309, engineered to minimize downtime and enhance operational stability. Crafted from premium bearing steel with P0-P4 precision grades and C0/C3/C4 clearance options, these double-row radial bearings deliver long life and low noise even under heavy loads—critical for maintaining consistent production in demanding industrial environments.
- Designed for self-alignment to compensate for shaft misalignment, reducing wear and extending machinery lifespan
- Rich stock availability ensures fast 3-5 day sample delivery and reliable bulk order fulfillment
- Supports OEM/ODM customization to match specific metallurgy equipment requirements, backed by ISO 9001:2015 quality certification
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
Material
Acero para rodamientos
Esférico
Alineación de rodamientos
Dirección de Carga
Rodamiento Radial
Separado
No separado
Especificación
100*180*46 mm
Origen
China
Código HS
8482300000
Industrias de Aplicación
Industria
Equipo Típico
Maquinaria Industrial
Metallurgy operations face critical challenges when bearings fail—unplanned shutdowns halt production, repair costs escalate, and missed deadlines impact profitability. Many struggle with bearings that can’t handle heavy radial loads or misalignment in high-temperature environments, leading to frequent replacements. Sourcing reliable, precision-grade bearings with flexible order options often adds another layer of complexity. Our Self-Aligning Roller Bearings 21304-21309 series addresses these pain points directly. Designed for metallurgy machinery, these high precision P0-P4 bearings deliver long life, high speed, and low noise performance—critical for continuous operation in rolling mills and furnace conveyors. With rich stock availability, we support flexible orders from 1pc MOQ, ensuring you get the exact bearings you need without excessive inventory costs. Backed by our ISO9001 certified quality control, each unit undergoes rigorous testing before shipment. These double-row radial bearings excel in environments with heavy radial loads and potential shaft misalignment—common in metallurgy machinery like continuous casters and rotary kilns. The self-aligning design compensates for angular deviations up to 2-3 degrees, reducing stress on shafts and extending equipment life. Whether operating under high temperatures or variable load conditions, the bearing steel construction ensures durability and consistent performance, minimizing the risk of unexpected failures during critical production cycles. Three key parameters define the performance of these self-aligning roller bearings. The precision rating (P0-P4) directly affects rotational accuracy—P4 grade bearings, for instance, maintain tighter tolerances, reducing vibration in high-speed applications like rolling mill drives. Clearance options (C0, C3, C4) accommodate thermal expansion; C3 and C4 clearances are ideal for high-temperature metallurgy processes where heat-induced expansion could otherwise cause binding. The double-row roller design distributes loads evenly, increasing dynamic load capacity and enabling longer service intervals compared to single-row alternatives. Por qué escatimar en rodamientos cuesta más a largo plazo
Choosing low-quality bearings may seem cost-effective initially, but the hidden expenses add up quickly. A single bearing failure in a metallurgy conveyor can halt production for 8+ hours, resulting in thousands of dollars in lost output. Inferior materials lead to premature wear, requiring frequent replacements and maintenance. Our bearings, however, are built to ISO standards and backed by a 12-month global warranty, ensuring reliable performance and reducing total cost of ownership. By investing in high precision self-aligning roller bearings, you protect your equipment, maintain production schedules, and avoid unnecessary downtime. Su Socio de Confianza para Soluciones de Rodamientos Desde 2005
Jinan Saifan Bearing has served global buyers across Europe, America, and Southeast Asia for over 18 years, building a reputation for stability and quality. Our integrated manufacturing and exporting capabilities mean we control every step of production—from R&D to quality control—supported by an in-house QC lab. We offer full OEM/ODM customization to meet specific metallurgy machinery requirements, with sample lead times of 3–5 days and bulk delivery in 5–15 days. Our technical team provides free guidance on selection and installation, ensuring you get the right bearing for your application. With multiple payment options including T/T, credit card, and Alibaba trade assurance, we make transactions secure and convenient. Don’t let equipment downtime affect your bottom line. Whether you need a single replacement bearing or bulk order for scheduled maintenance, our ready stock ensures quick dispatch. Send us your bearing model, required precision grade, and quantity today—we’ll provide a competitive quote within 24 hours and get your order on the way. Preguntas Frecuentes
Q: Are these self-aligning roller bearings genuine and traceable? A: Yes, all our bearings are manufactured in our ISO9001 & ISO14001 certified facility and come with complete production traceability documentation. Q: How do I confirm the correct bearing model for my metallurgy equipment? A: Provide your equipment model, load requirements, and operating conditions. Our technical team will verify the optimal bearing specification for your application. Q: ¿Cuál es la política de garantía para estos rodamientos?
A: Ofrecemos una garantía global de 12 meses que cubre defectos de fabricación, con reemplazo o reembolso gratuito disponible para productos no conformes.
Q: What is the minimum order quantity for the 21304-21309 series? A: Los artículos estándar tienen un MOQ de 1 pieza, apoyando tanto reparaciones de emergencia como compras en pequeñas cantidades. Q: ¿Qué tan rápido puedo recibir mi pedido?
A: Samples ship in 3–5 days, while bulk orders are delivered within 5–15 days via sea or air transport, depending on your location. Q: Can you provide custom clearance or precision grades for specific applications? A: Yes, we offer full ODM/OEM customization, including precision grades (P0-P4) and clearance options (C0, C3, C4) to meet unique operational requirements. 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.
21304, 21305, 21306, 21307, 21308, 21309, 21310
Steel & Metallurgy
Rolling Mills, Continuous Casters, Furnace Conveyors
Mining & Construction
Crushers, Conveyors, Heavy-Duty Gearboxes
Reducer Systems, Press Machines, Rotary Kilns
Minimize Downtime with High Precision Self-Aligning Roller Bearings 21304-21309 for Metallurgy Machinery
Self-Aligning Roller Bearings Engineered for Metallurgy’s Toughest Conditions
Optimal Performance in Heavy-Duty Metallurgy Applications
Precision and Clearance: Technical Factors That Impact Your Operations
Packaging & Shipping
Get Your Metallurgy Machinery Bearings Shipped Fast
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