Ball Bearing

Angular Contact Ball Bearing 7308AC 7309AC 7310AC 7311AC for High-Speed Machine Tool Spindle and Motor

SKU: a0d8bd5294f2 In Stock

Ensure smooth, high-speed rotation for your machine tool spindle or motor with our Angular Contact Ball Bearing series (7308AC, 7309AC, 7310AC, 7311AC). Engineered to deliver P4 precision and Z3V3 vibration control, these bearings minimize noise and extend equipment lifespan, even under continuous heavy loads.

  • High-grade bearing steel construction ensures stable performance in high-speed applications, reducing downtime for industrial machinery manufacturers.
  • Optimized contact angle design balances radial and axial loads, critical for maintaining accuracy in precision tooling operations.
  • Supports OEM/ODM customization to match specific spindle or motor specifications, backed by our ISO 9001:2015 quality assurance.
Wholesale Price (FOB)
¥1.20
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

Personalizado

Número de Filas

Personalizado

Dirección de Carga

Rodamiento Radial

Material

Acero para rodamientos

Nombre del Producto

Rodamiento de Bolas de Contacto Angular

Clasificación de Precisión

P0, P6, P5, P4, P2

Vibración

,

,

Característica

Larga Vida, Alta Velocidad, Bajo Ruido

Transporte

por mar o por aire

Servicio

OEM, ODM

Paquete de Transporte

Palet de cartón

Especificación

Origen

China

Código HS

8482102000

Capacidad de Producción

1000000

7308AC, 7309AC, 7310AC, 7311AC
customized

Industrias de Aplicación

Industria

Equipo Típico

Fabricación

Maquinaria Industrial

High-Speed Machine Tool Spindles, Electric Motors
CNC Machines, Precision Lathes

Eliminate Spindle Downtime with Precision Angular Contact Ball Bearings 7308AC-7311AC

Machine tool operators know the frustration of unexpected spindle failures—hours of production lost, missed deadlines, and costly repairs. Low-quality bearings often fail prematurely under high-speed rotation, while sourcing specific precision grades like P4 can mean long lead times and minimum order quantities that strain maintenance budgets.

Alto rendimiento de alta velocidad en el que puede confiar

Our Angular Contact Ball Bearings 7308AC, 7309AC, 7310AC, and 7311AC are engineered to solve these challenges. With precision ratings up to P4 and vibration levels as low as Z3V3, they deliver stable rotation at high speeds—critical for machine tool spindles and motor applications. Backed by our ISO9001-certified production facility and 16 years of manufacturing experience, we ensure consistent quality with flexible ordering: 1pc MOQ for standard items and 3–5 day sample lead times.

Engineered for High-Speed, Heavy-Duty Conditions

These bearings thrive in demanding environments where both radial and axial loads are present. The AC design (angular contact with 25° contact angle) provides the rigidity needed for precision machining, while the high-grade bearing steel construction ensures durability under continuous operation. Whether powering a CNC spindle running at 10,000 RPM or a motor in industrial equipment, they maintain low noise levels and minimal vibration, reducing wear on adjacent components.

Características Técnicas Clave Que Importan

Precision rating directly impacts performance: P4 grade bearings minimize runout and axial clearance, essential for maintaining machining accuracy. Vibration class Z3V3 ensures smooth operation, critical for reducing spindle noise and extending tool life. The customizable separated design allows for easy installation and maintenance, while the long-life feature—achieved through optimized heat treatment and cage design—reduces replacement frequency. These technical details translate to fewer production interruptions and lower total maintenance costs.

Why Compromising on Quality Costs More

Choosing non-certified bearings may save upfront, but the hidden costs add up. A single spindle failure due to bearing collapse can cost thousands in downtime and repairs. Our bearings undergo rigorous QC testing in our in-house lab, from material composition checks to dimensional accuracy verification. With ISO14001 certification and a 12-month global warranty, we stand behind every product—offering defect replacement or refund if issues arise. Investing in reliable bearings lowers long-term operational costs by minimizing unplanned downtime.

Su Socio de Rodamientos de Confianza Desde 2005

Jinan Saifan Bearing has served global buyers across Europe, America, Southeast Asia, and the Middle East for over 16 years. Our full R&D capabilities and OEM/ODM customization support mean we can adapt to your specific requirements, from custom dimensions to specialized cage materials. We maintain a large inventory of standard bearings, enabling 5–15 day bulk delivery, and offer free technical guidance to help you select the right bearing for your application. Our transparent supply chain ensures every product is traceable, with documentation available upon request.

Packaging & Shipping

    Embalaje de palets de cartón con envoltura interior protectora para prevenir daños durante el transporte

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

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

  • Shipping options: Sea freight for large orders, air freight for urgent requirements

    • 1pc MOQ disponible para rodamientos estándar, apoyando necesidades de mantenimiento de emergencia

Get Your Bearings Delivered Fast

Don’t let spindle issues slow down your production. Send us your bearing model (7308AC, 7309AC, 7310AC, or 7311AC), application details (speed, load, precision requirements), and quantity, and we’ll provide a quote within 24 hours. With free samples available (buyer covers freight), you can test performance before committing to a full order.

Preguntas Frecuentes

Q: Are these bearings original and certified?

A: We are an integrated manufacturer with ISO9001 and ISO14001 certifications. All bearings are produced in our own facility and undergo strict quality control. We also supply authentic NSK/INA bearings as part of our product range.

Q: How do I confirm if the 7308AC-7311AC series fits my machine tool spindle?

A: Provide your spindle model, required precision grade, and operating speed, and our technical team will verify compatibility and recommend the optimal bearing configuration.

P: ¿Cuál es su política de garantía?

A: We offer a 12-month global warranty on all manufactured bearings. If a defect is found, we provide free replacement or a full refund.

P: ¿Cuál es la cantidad mínima de pedido?

A: Standard items have a 1pc MOQ, making it easy to source single bearings for maintenance or testing.

P: ¿Qué tan rápido pueden enviar?

A: Samples ship in 3–5 days, bulk orders in 5–15 days. We use reliable logistics partners for sea or air transport, with tracking provided.

Q: Do you offer technical support for installation?

A: Yes, our team provides free technical guidance on bearing installation, preload adjustment, and maintenance to ensure optimal 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.

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