Ball Bearing

Angular Contact Ball Bearing QJ252M QJ256M for Automobile Rolling Mill High Precision P4

SKU: 2db310e5ffe2 In Stock

Ensure smooth, high-precision operation for your automobile rolling mill with the Angular Contact Ball Bearing QJ252M QJ256M—engineered to deliver consistent performance even under heavy loads. Crafted from premium bearing steel and rated P4 precision, this single-row, unseparated design minimizes vibration (Z1V1-Z3V3 options) and ensures long service life, addressing the need for reliable rotation in demanding metallurgy and mining applications.

  • Grease or oil lubrication flexibility adapts to your equipment’s specific maintenance protocols
  • In-stock availability ensures quick fulfillment, reducing downtime for urgent replacements
  • Supports OEM/ODM customization to match unique rolling mill specifications, backed by Saifan’s decades of manufacturing expertise
Wholesale Price (FOB)
¥1.45
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.

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

Aplicación

Automóvil, Molino de Laminación, Mina, Metalurgia

Lubricación

Grasa o Aceite

Clasificación de Precisión

P0 P6 P5 P4 P2

Vibración

Inventario

en Stock

Servicio

OEM ODM

Paquete de Transporte

Palet de cartón

Marca registrada

/

/
    /NMB/
  • /
  • /

Origen

China

Código HS

8482102000

Capacidad de Producción

1000000

QJ252M
Z1V1 Z2V2 Z3V3

Industrias de Aplicación

Industria

Equipo Típico

Automóvil

Metalurgia

Molinos de laminación, máquinas de colada continua

Minería

Automotive drive systems, transmission components
Mining machinery, ore processing equipment

Minimize Downtime with High Precision Angular Contact Ball Bearings QJ252M QJ256M for Automobile Rolling Mill

Equipment failures due to bearing issues can halt production lines, leading to significant losses. Many manufacturers struggle with inconsistent quality from low-grade bearings or face long lead times when sourcing critical components. When precision and reliability are non-negotiable, choosing the right bearing becomes a critical decision for maintaining operational efficiency.

High Precision P4 Angular Contact Ball Bearings Ready for Immediate Shipment

Our Angular Contact Ball Bearing QJ252M and QJ256M are engineered to address these challenges directly. With P4 precision rating and Z2-Z4 noise grades, these bearings deliver the stability required for high-performance applications like automobile rolling mills. We maintain substantial inventory, ensuring standard items are available for immediate delivery with a 1pc MOQ, supporting both emergency repairs and planned production needs.

Rendimiento Óptimo en Entornos Industriales Exigentes

These angular contact ball bearings excel in environments requiring both radial and axial load handling. Designed for high-speed rotation with minimal vibration, they are ideal for automobile rolling mills where precision directly impacts product quality. The single-row, unseparated design ensures structural integrity under the heavy loads and continuous operation typical in mining and metallurgy applications, providing reliable performance even in harsh conditions.

Especificaciones técnicas que garantizan un funcionamiento fiable

The P4 precision rating of these bearings guarantees tight tolerances, reducing runout and improving rotational accuracy—critical factors for maintaining consistent product quality in rolling mill operations. Constructed from high-grade bearing steel, they offer exceptional durability and wear resistance, extending service life in high-stress applications. The Z2-Z4 vibration grades ensure smooth operation, minimizing noise and reducing stress on connected components. Available with grease or oil lubrication, these bearings can be tailored to specific operating conditions, optimizing performance and maintenance intervals.

Choosing Quality Bearings Reduces Long-Term Costs

Investing in genuine high-precision bearings eliminates the hidden costs associated with counterfeit or low-quality alternatives. Early bearing failure can lead to unplanned downtime, expensive repairs, and potential damage to expensive machinery. Our bearings, manufactured under ISO9001 and ISO14001 certifications, undergo rigorous quality control processes to ensure consistency and reliability. With a 12-month global warranty, we stand behind our products, providing peace of mind and reducing the total cost of ownership over time.

Why Global Buyers Partner with Saifan Bearings

With over 18 years of experience serving global markets across Europe, America, Southeast Asia, and the Middle East, we have established a reputation for reliability. Our integrated manufacturing and exporting capabilities ensure stable supply chains, while our full R&D and QC lab enable us to meet custom OEM/ODM requirements. We offer free technical guidance to help customers select the right bearings for their applications, and our defect replacement/refund policy ensures customer satisfaction. Our flexible order options, including 3–5 days sample lead time and 5–15 days bulk delivery, make us a preferred partner for time-sensitive projects.

Packaging & Shipping

    Embalaje seguro en cartón y palet para prevenir daños durante el tránsito

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

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

    Múltiples opciones de envío, incluyendo exprés, aéreo y marítimo

    1pc MOQ disponible para artículos estándar, apoyando pedidos de pequeña cantidad

Get Your High Precision Bearings Today

Don’t let bearing issues disrupt your production schedule. Whether you need QJ252M, QJ256M, or other high precision bearings, we have the inventory and expertise to meet your needs. Contact us with your specific requirements, and we’ll ensure you receive the right bearings quickly to keep your operations running smoothly.

Preguntas Frecuentes

P: ¿Son estos rodamientos genuinos y trazables?

A: Yes, we supply authentic bearings and provide full traceability for all products, ensuring you receive genuine, high-quality components.

Q: How can I confirm if the QJ252M bearing is suitable for my rolling mill?

A: Provide your equipment specifications and operating conditions, and our technical team will assist in verifying the correct bearing型号 for your application.

Q: ¿Cuál es el período de garantía para estos rodamientos?

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

Q: ¿Cuál es la cantidad mínima de pedido para rodamientos estándar?

A: We accept 1pc MOQ for standard items, making it easy to source both small quantities for repairs and larger orders for production.

P: ¿Con qué rapidez puedo esperar que se envíe mi pedido?

A: In-stock items ship within 3–5 days for samples and 5–15 days for bulk orders, with multiple shipping options to meet your timeline.

Q: Do you offer technical support for installation and maintenance?

A: Yes, we provide free technical guidance to help with installation, lubrication, and maintenance best practices for optimal bearing performance.

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

Latest from Our Knowledge Base

ALL ARTICLES