Ball Bearing

Angular Contact Ball Bearings 7311 7312 for Automobile Rolling Mill with P0-P4 Precision

SKU: abc2208add19 In Stock

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
Wholesale Price (FOB)
¥1.35
MOQ: 1 Piece • Bulk discounts available on inquiry
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12-Month Warranty
Free Samples
Global Shipping
Product Specifications

Technical Details & Description

Especificaciones del Producto

Parámetro

Detalles

Modelo NO.

Separado

No separado

Número de Filas

Sencillo

Dirección de Carga

Rodamiento Radial

Material

Acero para rodamientos

Nombre del Producto

Rodamiento de Bolas de Contacto Angular

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

7311 7312
80*140*44.4 mm
NTN/NSK/NMB/Koyo/NACHI/Timken

Industrias de Aplicación

Industria

Equipo Típico

Automóvil

Metalurgia

Minería

Automotive transmission systems, wheel hubs
Rolling Mills, steel processing machinery
Mining equipment, conveyor systems

Eliminate Downtime with Reliable 7311 7312 Angular Contact Ball Bearings

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.

7311 7312 Angular Contact Ball Bearings: In Stock and Ready to Ship

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.

Engineered for Heavy-Duty Applications

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.

Por qué los rodamientos de calidad reducen los costos totales

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.

Packaging & Shipping

    Embalaje seguro de cartón y paletas para prevenir daños durante el tránsito

    Tiempo de entrega de 3 a 5 días para muestras, de 5 a 15 días para pedidos al por mayor

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

  • Real-time order tracking provided for all shipments

    • 1pc MOQ disponible para necesidades de reemplazo de emergencia

Get Your Bearings Delivered Fast

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.

P: ¿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?
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.

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