Ball Bearing
Rodamientos de bolas de contacto angular de doble fila 3200 A-2RS1TN9 para la industria automotriz
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ISO 9001:2015
P0-P4 Precision
Factory Direct
Product Detail
Angular Contact Ball Bearings 7311 7312 for Automobile Rolling Mill with P0-P4 Precision
Ensure smooth, high-precision rotation for your automobile rolling mill with Angular Contact Ball Bearings 7311 7312, designed to deliver reliable performance even under heavy loads. Crafted from premium bearing steel and available in P0-P4 precision grades, these single-row, unseparated bearings minimize vibration and extend machinery lifespan, addressing the challenge of maintaining consistent operation in demanding industrial environments.
- Engineered for radial load handling with grease or oil lubrication options, ideal for automotive and metallurgy applications
- Precision rating up to P4 ensures tight dimensional control, critical for rolling mill accuracy and product quality
- In-stock availability with OEM/ODM support, offering flexible solutions to meet your specific equipment requirements
MOQ
1 Piece
Sample Lead Time
3-5 Days
Bulk Lead Time
5-15 Days
Warranty
12 Months
Free Sample Available
OEM / ODM Support
T/T · L/C · Alibaba
Product Description
Especificaciones del producto
Parámetro
Detalles
Modelo NO.
Separado
No separado
Número de Filas
Único
Dirección de Carga
Rodamiento radial
Material
Acero para rodamientos
Nombre del Producto
Lubricación
Grasa o Aceite
Clasificación de Precisión
P0 P6 P5 P4 P2
Inventario
en Stock
Servicio
OEM ODM
Paquete de Transporte
Palet de Cartón
Especificación
Marca registrada
Origen
China
Código HS
8482102000
Capacidad de Producción
1000000
Industrias de Aplicación
Industria
Equipo Típico
Automóvil
Metalurgia
Minería
Equipment failures caused by substandard bearings cost manufacturers thousands in lost production each year. Many buyers struggle with long lead times for precision bearings or inconsistent quality from unknown suppliers. When your rolling mill or automobile production line stops, every hour counts—you need bearings that arrive quickly and perform reliably. Our Angular Contact Ball Bearings 7311 7312 solve these challenges with immediate stock availability and strict quality control. As an integrated manufacturer with ISO9001 certification, we ensure each bearing meets P0-P4 precision standards, critical for maintaining alignment in automobile and rolling mill applications. With a 1pc MOQ and 3–5 day sample lead time, we support both emergency repairs and bulk production needs. These single-row, unseparated bearings excel in high-load environments like automobile transmissions and rolling mills. Designed to handle radial loads with precision, they maintain stability even under continuous operation. The bearing steel construction ensures durability in mining and metallurgy settings, where dust and heavy vibrations are common. Choosing the right angular contact bearing directly impacts equipment lifespan and maintenance frequency. Características Técnicas Clave Que Importan
The 80*140*44.4 mm specification provides optimal load distribution for industrial machinery. Precision ratings from P0 to P4 allow customization—P4 grade minimizes runout for high-speed rolling mills, while P0 offers cost-effective reliability for standard automobile applications. Grease or oil lubrication flexibility lets you adapt to specific operating conditions, ensuring smooth performance across temperature ranges. The unseparated design simplifies installation and reduces alignment errors during maintenance. Low-quality bearings may save money upfront but often fail prematurely, causing unplanned downtime. Our Angular Contact Ball Bearings 7312 and 7311 are manufactured to strict standards, reducing the risk of sudden failures. With a 12-month global warranty, we stand behind every product—defects are replaced or refunded, minimizing your financial exposure. Authentic NSK/INA bearings in our inventory provide trusted alternatives when original equipment specifications are required. Nuestro Compromiso con Su Éxito
With over 18 years in the industry, we’ve served global buyers across Europe, America, and Southeast Asia. Our full R&D and QC lab ensures each bearing meets international standards before shipment. We offer free technical guidance to help you select the right precision grade and lubrication type for your application. Bulk orders ship within 5–15 days, and we provide free samples (buyer covers freight) to verify performance before full deployment. Embalaje seguro en cartón y palé para evitar daños durante el tránsito
3–5 días de tiempo de entrega para muestras, 5–15 días para pedidos al por mayor
1pc MOQ disponible para necesidades de reemplazo de emergencia
Reciba sus rodamientos rápidamente
Don’t let equipment downtime affect your production schedule. Whether you need a single 7311 bearing for a repair or bulk 7312 units for your assembly line, we have you covered. Send your requirements today and get a quote within 24 hours—stock is limited, and prompt ordering ensures you get the bearings when you need them. Preguntas Frecuentes
P: ¿Son estos rodamientos auténticos y trazables?
A: Yes, we supply authentic NSK/INA bearings and our own Saifan-branded products, all traceable through our quality control system. We can provide certification of authenticity upon request. Q: How do I confirm if the 7311/7312 model fits my equipment? A: Provide your equipment model or technical specifications (load, speed, temperature), and our engineering team will verify compatibility at no cost. P: ¿Cuál es su política de garantía?
A: We offer a 12-month global warranty. Manufacturing defects are covered by replacement or full refund, with free technical support throughout the warranty period. Q: ¿Cuál es la cantidad mínima de pedido?
A: Standard items have a 1pc MOQ, making us ideal for emergency repairs or small-batch testing before full production orders. P: ¿Qué tan rápido pueden enviar?
A: In-stock bearings ship within 3–5 days for samples and 5–15 days for bulk orders. We work with major couriers for fast global delivery. Q: How can I verify the precision grade of the bearings? A: Each bearing is labeled with its precision rating (P0-P4). We can provide test reports from our QC lab showing dimensional accuracy and noise levels upon request. Ready to order or need a quote?
7311 7312
Angular Contact Ball Bearing
80*140*44.4 mm
NTN/NSK/NMB/Koyo/NACHI/Timken
Automotive transmission systems, wheel hubs
Rolling Mills, steel processing machinery
Mining equipment, conveyor systems
Eliminate Downtime with Reliable 7311 7312 Angular Contact Ball Bearings
7311 7312 Angular Contact Ball Bearings: In Stock and Ready to Ship
Engineered for Heavy-Duty Applications
Why Quality Bearings Reduce Total Costs
Packaging & Shipping
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Free Sample
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02
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03
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