Joint Bearing

Spherical Plain Rod End Bearings SI5E SI6E SI8E SI10E Self-Lubricating Steel-on-Steel for Industrial Machinery

SKU: 2ee59893e005 In Stock

Ensure smooth, maintenance-free operation in your industrial machinery with our Spherical Plain Rod End Bearings SI5E SI6E SI8E SI10E. These self-lubricating steel-on-steel bearings eliminate the need for frequent lubrication checks, reducing downtime and keeping your equipment running longer. Engineered for both trust and radial loads, they deliver high precision (P0-P4 grade) and low noise (Z2-Z4) performance critical for heavy-duty applications like machine tools and textile machinery.

  • Self-lubricating bushing design ensures continuous operation without manual grease application
  • Steel-on-steel sliding contact provides exceptional durability under heavy loads
  • Precision 5*21*6 mm specification fits standard industrial machinery shafts
  • Backed by our 12-month warranty and expert technical support for seamless integration
Wholesale Price (FOB)
¥1.50
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.

Cojinete Hidrodinámico

Material del buje

Auto-Lubricación

Dirección del Rodamiento

Confianza y Radial

Método de Lubricación

Control Intermitente de Combustible

Espesor de película lubricante

Lubricación de Película Delgada

Nombre del Producto

Cojinete de Superficie Esférica

Paquete

Embalaje Neutro de Rodamiento

Contacto Deslizante

Acero sobre Acero

Características

Alta Precisión, Larga Vida, Bajo Ruido

Servicio

OEM ODM

Paquete de Transporte

Palet de cartón

Especificación

Origen

Japón

Código HS

8482101000

Capacidad de Producción

1000000

SI5E SI6E SI8E SI10E SI12E SI15ES
Lubricant & Load
5*21*6 mm

Industrias de Aplicación

Industria

Equipo Típico

Maquinaria Industrial

Automotriz

Maquinaria Agrícola

Cosechadoras, Tractores, Equipos de Labranza

Construcción

Fabricación

Machine Tools, Printing Equipment, Reducers
Suspension Systems, Steering Linkages
Excavators, Loaders, Cranes
Conveyors, Presses, Robotic Arms

Reduce Downtime with SI Series Spherical Plain Rod End Bearings

Equipment failures due to bearing issues cost manufacturers thousands in lost production each year. Many face challenges with frequent lubrication requirements, premature wear in heavy-load applications, and difficulty finding reliable suppliers for specialized components. When bearings fail unexpectedly, production lines halt, maintenance costs rise, and deadlines are missed—all avoidable with the right bearing solution.

Self-Lubricating Steel-on-Steel Bearings for Demanding Applications

Our Spherical Plain Rod End Bearings SI5E SI6E SI8E SI10E address these pain points head-on. Designed with self-lubricating steel-on-steel construction, they eliminate the need for frequent manual lubrication, reducing maintenance time and ensuring consistent performance in industrial machinery. Backed by our 17 years of manufacturing experience and ISO9001 certification, we offer 1pc MOQ for standard items and 3–5 day sample lead time, making small-batch orders and urgent replacements feasible.

Engineered for Heavy Loads and Continuous Operation

These bearings excel in applications requiring both radial and thrust load capacity, such as machine tool pivot points, printing press linkages, and reducer assemblies. The steel-on-steel sliding contact provides high wear resistance, while the thin film lubrication ensures smooth operation even under intermittent load conditions. With a focus on precision (P0-P4 class) and low noise (Z2-Z4 grade), they meet the strict requirements of industrial machinery where reliability directly impacts productivity.

Key Technical Features Driving Performance

The self-lubricating bushing material is critical for applications where regular maintenance is difficult or costly, ensuring consistent operation without lubrication intervals. The hydrodynamic bearing design optimizes load distribution, reducing stress on contact surfaces and extending service life. Measuring 5*21*6 mm, the compact size fits into tight mechanical assemblies while delivering the durability needed for heavy-duty use. Additionally, the trust and radial bearing direction capability allows for multi-axis movement, making these bearings versatile across various industrial equipment.

Long-Term Value of Quality Bearings

Choosing low-quality bearings may seem cost-effective initially, but the hidden costs add up quickly. Premature failures lead to unplanned downtime, expensive repairs, and potential damage to adjacent components. Our SI Series bearings, with their high precision and long life, minimize these risks. As an integrated manufacturer and exporter, we ensure quality consistency through rigorous QC lab testing, reducing the likelihood of defects and the associated costs of replacement. The 12-month global warranty further underscores our commitment to reliability, providing peace of mind for critical applications.

Por qué los compradores globales eligen los rodamientos Saifan

With operations since 2005, we serve clients across Europe, America, Southeast Asia, and the Middle East, offering a proven track record of stable supply. Our full R&D capabilities and ISO14001 certification demonstrate our expertise in both product development and environmental responsibility. We provide free technical guidance to ensure proper选型 and installation, and our defect replacement/refund policy ensures customer satisfaction. With a production capacity of 1,000,000 units, we can scale to meet large orders while maintaining 5–15 day bulk delivery times. Whether you need OEM customization or standard products, our flexible order options and multiple payment methods (T/T, credit card, Alibaba trade) cater to diverse buyer needs.

Packaging & Shipping

    Embalaje neutro con palet de cartón para un transporte seguro

    3–5 días de tiempo de entrega de muestras para evaluación urgente

  • 5–15 day bulk delivery supported by global logistics partners
  • Free samples available (buyer covers freight)
  • 1pc MOQ for standard items, ideal for maintenance and small-scale projects

Get Your SI Series Bearings Today

Don’t let bearing issues disrupt your production. Contact us with your required model (SI5E, SI6E, SI8E, SI10E, etc.), application details, and quantity to receive a prompt quote. Our team will ensure you get the right bearings for your equipment, with fast delivery to minimize downtime. Every day without reliable bearings costs your business—act now to secure your supply.

Preguntas Frecuentes

P: ¿Son estos rodamientos genuinos y trazables?

A: Yes, we supply authentic bearings and provide full traceability documentation for all products, ensuring compliance with international quality standards.

Q: How can I confirm the correct SI series model for my machinery?

A: Provide your equipment型号 or specific load/speed requirements, and our technical team will assist with free选型 confirmation to ensure optimal performance.

Q: What is the warranty policy for these spherical plain bearings?

A: We offer a 12-month global warranty, covering manufacturing defects with free replacement or refund as needed.

Q: What is the minimum order quantity for standard SI series bearings?

A: We accept 1pc MOQ for standard items, supporting both emergency repairs and small-batch purchases.

Q: ¿Qué tan rápido puedo recibir mi pedido?

A: Samples ship within 3–5 days, and bulk orders are delivered in 5–15 days, with flexible shipping options via DHL, FedEx, or sea freight.

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

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