VIIPLUS – Your Trusted Partner in Self-Lubricating Bearings Export and Global Logistics Solutions

Core Business Areas:

1. Export of Self-Lubricating Bearings
We specialize in the international trade and export of self-lubricating bearings, serving a wide range of global industries with high-quality products and technical expertise.

2. Comprehensive Logistics Services
We offer a one-stop solution for global logistics, including:

• Ocean Freight Booking
  Professional handling of both FCL (Full Container Load) and LCL (Less than Container Load) shipments. Services include DDU, EXW, and FBA operations with a highly experienced team.

• Air Freight Services
  Export and import air freight services focused on Southeast Asia, the Middle East, the Indian Subcontinent, the Americas, Europe, and Africa. We support CIF, FOB, and DDU terms with competitive pricing and reliable service.

  • Express Air Freight: Door-to-door small parcel service, express customs clearance, and tailored air freight solutions for sensitive cargo.

• Trailer and Warehousing Services

  • Specialized in customs clearance and trucking for import and export general cargo.

  • Experienced operations team for special containers, including open-top, flat rack, and other non-standard containers.

  • Support for multi-point container loading and door-to-warehouse cargo consolidation.

  • Own warehouse available for delivery and in-warehouse loading services.

• Railway and Multimodal Transport
  Expertise in international rail freight and sea-rail intermodal transportation to Russia, Kazakhstan, Uzbekistan, Kyrgyzstan, Turkmenistan, Tajikistan, Azerbaijan, Mongolia, and other CIS countries.

  For rail freight inquiries, please provide:

  1. Product name and total weight

  2. HS Code

  3. Packaging type (e.g., cartons, wooden frames, with or without pallets)

  4. Dimensions (L×W×H)

  5. Weight per unit (specify if manual or forklift loading is required)

  6. Departure and destination stations

  7. Container type (20GP, 40GP, 40HQ)

• International Express Services
  As a professional international express and logistics integrator, we have strong partnerships with UPS, DHL, EMS, FedEx, and TNT, ensuring reliable express delivery worldwide.

Our Service Motto:
Safety First · Speed First · Integrity First · Technology First

Main Markets:
Southeast Asia, Middle East, Indian Subcontinent, Europe, and the Americas.

We are committed to providing professional, efficient, and reliable logistics services to meet all your international trade and transportation needs.

Logistics and Port Machinery
The self-lubricating bearings developed by our company offer advantages over traditional rolling bearings, such as maintenance-free operation, low cost, and corrosion resistance. These features make them ideal for outdoor logistics machinery, including pallet trucks, stackers, lift platforms, and port machinery.

Applications in Port Machinery

In port machinery, CuAl10Fe5Ni5 slide plates are utilized primarily in reduction gears due to their:

• High Strength and Durability: Ideal for heavy-duty operations where mechanical stresses are significant.
• Corrosion Resistance: Particularly important in maritime environments where exposure to seawater can lead to rapid degradation of materials.
• Low Friction Properties: The alloy’s design often includes grooves that help trap lubricants, reducing friction between moving parts and extending the lifespan of machinery.

These properties make CuAl10Fe5Ni5 an excellent choice for components that require both strength and longevity in harsh conditions, such as those found in port operations.

The CuAl10Fe5Ni5 alloy is a robust material that meets the rigorous demands of reduction gears in port machinery. Its combination of high strength, wear resistance, and corrosion resistance makes it a preferred choice for slide plates and other critical components in heavy-duty applications. By leveraging this advanced alloy, manufacturers can enhance the efficiency and durability of their equipment, ultimately leading to reduced maintenance costs and improved operational reliability

Powering Global Industries: The VIIplus Self-Lubricating Bearing Solutions

In the modern industrial landscape, machine reliability is non-negotiable. Traditional lubricated bearings often fall short in extreme environments—grease washes away in water, bakes off in high heat, attracts abrasive dust in construction, or causes unacceptable contamination in clean-room settings.

At VIIplus, we engineer advanced Self-Lubricating Bearing Solutions designed to eliminate the need for external lubrication, reduce maintenance costs, and ensure uninterrupted performance across a vast spectrum of industries. By integrating solid lubricants (like graphite or PTFE) into high-strength base metals or utilizing advanced composite plastics, VIIplus delivers customized bearing solutions for the world’s most demanding applications.

Here is how VIIplus self-lubricating bearings are transforming key industries worldwide.

1. Infrastructure: Unrelenting Durability for Decades

Infrastructure projects require components that can bear massive static and dynamic loads while operating without maintenance for years, often in inaccessible locations.

• Dams & Sluice Gates: We utilize high-tensile brass and bronze matrices embedded with solid graphite plugs for roller shafts, trunnions, and hinges. These bearings operate flawlessly even when fully submerged, resisting water washout and corrosion.

• Bridges & Railways: For bridge bearings, expansion joints, and railway bogie linkages, our solid-lubricant bronze alloys and PTFE composites withstand extreme static loads and prevent fretting wear caused by micro-vibrations and weather fluctuations.

• Tunnels: In the brutal, grit-filled environments of tunnel boring machines (TBMs), VIIplus heavy-duty self-lubricating bearings protect cutterhead articulations and thrust cylinders from failure.

2. Construction & Farming Equipment: Conquering Harsh Environments

Heavy machinery operates in dust, mud, and high-impact conditions where traditional grease quickly turns into a grinding paste. VIIplus solid-lubricated bearings thrive here.

• Earthmoving & Lifting: For excavator boom pins, forklift mast rollers, truck bed cranes, and front-end loaders, our high-strength cast bronze bearings with graphite inserts absorb extreme shock loads while remaining maintenance-free.

• Aerial Work Platforms & Dump Trucks: Scissor lift pivots and dump hinge pins utilize our steel-backed POM/PTFE composite bearings (Self-lubricting bearing types), ensuring smooth operation and eliminating the costly downtime associated with manual greasing.

3. Marine & Offshore: Mastering the Sea

Saltwater is the ultimate enemy of mechanical components. VIIplus provides specialized marine-grade self-lubricating solutions that prevent both chemical and galvanic corrosion.

• Onboard & Submerged Applications: We supply corrosion-resistant bronze and composite resin bearings for outboard motor tilt pins, fin stabilizer main shafts, and rudder pintles.

• Deck Machinery: Hatch cover hinges, windlass gear shafts, gangways, and onboard cranes rely on our solid-lubricant bearings to ensure reliable deployment in harsh oceanic climates, completely eliminating the risk of oil leaking into the marine ecosystem.

4. Clean, Precision & Automated Machinery: The “No-Oil” Imperative

In high-tech, medical, and financial equipment, the presence of liquid oil or grease is not just an inconvenience—it is a critical contamination hazard.

• Automated Machinery & ATMs: Our self-lubricating bearings are completely oil-free, which perfectly prevents the soiling of banknotes in ATMs and currency dispensers. They ensure smooth roller shaft operation without leaving grease residue.

• Semiconductors & Robotics: For industrial/vacuum robots, lithography equipment, and wafer processing, VIIplus offers pure ceramics, stainless steel with MoS2, and thin-wall PTFE bearings. These guarantee zero outgassing in vacuums and highly precise, backlash-free joint articulation.

• Food & Packaging: Ice machine augers and industrial mixers utilize our FDA-compliant food-grade engineering plastics and stainless-steel PTFE bearings, ensuring absolute hygiene and washdown resistance.

5. Heavy Plants & Energy: Defying Heat and Pressure

• Steel Manufacturing: Continuous casting machines and rolling mill roller tables face extreme heat. VIIplus specialized high-temperature bronze alloys with heat-resistant solid lubricants operate safely where standard liquid lubricants would ignite or evaporate.

• Power Generation: Water turbine guide vanes and inlet valve trunnions utilize our stainless-steel and cast bronze self-lubricating bearings, guaranteeing precise control of energy infrastructure over a lifespan of decades.

6. Pumps & Compressors: Fluid and Dry-Running Excellence

• Hydraulic & Water Pumps: Gear pump journals and water pump impeller shafts require materials that can handle boundary lubrication or run entirely dry during startup. VIIplus provides bi-metal (steel-backed bronze) and carbon-graphite solutions that resist cavitation, withstand high fluid pressures, and offer excellent anti-galling properties.

The VIIplus Promise

Whether you are designing a high-load excavator arm, a submerged dam gate, or a precision ATM dispenser, VIIplus Solutions bridges the gap between material science and mechanical reliability.

By choosing VIIplus self-lubricating bearings, you are not just buying a component; you are investing in a maintenance-free future, protecting the environment from oil pollution, and guaranteeing the long-term success of your machinery.

VIIplus Solutions: Application Parts & Material Selection Matrix

Contact VIIplus today to engineer the perfect self-lubricating bearing solution for your specific application.

Ultimate Guide to Maintenance-Free Self-Lubricating Bronze Graphite Bearings: Material Solutions & Application Matrix

Are you struggling with bearing failures in high-temperature, heavy-load, or hard-to-maintain industrial environments? Standard rolling bearings or traditional copper sleeves often fail when manual lubrication is impossible or when greases carbonize under extreme heat.

The ultimate solution lies in Self-Lubricating Bronze Alloy Bearings (Graphite Plugged)—widely known as Oilless Bearings. Engineered for true MAINTENANCE-FREE performance, these advanced friction components are transforming how heavy industries operate.

In this guide, we will explore the material technology behind these bearings and provide a comprehensive Application & Material Selection Matrix for various industries.

1. The Material Solution: How Do Self-Lubricating Bearings Work?

The core technology of a solid lubricant cast bronze bearing lies in its composite structure. It combines the mechanical strength of a premium metal alloy with the frictionless properties of solid lubricants.

• The Base Material (High-Strength Bronze): Typically manufactured from high-tensile brass (e.g., CuZn25Al5Mn4Fe3), aluminum bronze, or phosphor bronze, the metal matrix provides exceptional load-carrying capacity and high impact resistance.

• The Solid Lubricant (Graphite + PTFE/MoS2): Precision-drilled holes in the bearing surface are densely plugged with custom solid lubricants (primarily Graphite).

• The Working Principle: During operation, frictional heat causes the solid graphite to micro-expand. It transfers to the mating shaft, forming a durable, micro-thin solid lubrication film. This completely separates the metal surfaces, eliminating metal-to-metal contact and the need for external oil or grease.

2. Material Selection Guide Based on Working Conditions

Selecting the right bronze base is critical for specific industrial applications:

• High-Tensile Brass + Graphite (JDB-1): The universal choice for heavy loads and low speeds. Ideal for steel plants, injection molding, and heavy machinery.

• Tin Bronze / Phosphor Bronze + Graphite (JDB-2): Excellent corrosion resistance. Highly recommended for Sleeves for Pump Applications, marine environments, and chemical valves.

• Aluminum Bronze + Graphite (JDB-3): Best for high-temperature and offshore applications, offering superior wear and corrosion resistance under extreme stress.

3. The Ultimate Application & Material Selection Matrix

Below is a detailed matrix showcasing where self-lubricating sliding bushings, plates, and pads are utilized across major global industries.

4. Why Upgrade to Self-Lubricating Bronze Alloy Bearings?

By upgrading your equipment’s wear parts to graphite-plugged bronze bearings, your machinery gains significant operational advantages:

• 100% Maintenance-Free: Drastically reduce labor and downtime costs associated with manual lubrication.

• Extreme Temperature Resistance: Performs flawlessly in temperatures ranging from -100°C up to +400°C (where traditional grease evaporates or burns).

• High Load & Low-Speed Superiority: Unlike rolling bearings, oilless bushings thrive in oscillating, low-speed, and extremely heavy-duty applications without boundary lubrication breakdown.

• Eco-Friendly & Clean: No oil leaks or grease spills, making them perfect for food processing, cleanrooms, mold clamping, and environmentally sensitive hydropower dams.

Upgrade Your Machinery Today

Are you designing a new turbine, upgrading a blast furnace, or maintaining heavy-duty pumps? Selecting the right self-lubricating component is crucial for operational reliability.

[Contact our engineering team today] to get custom CAD drawings, material recommendations, and quotes for your specific Oilless Bearings, Sliding Plates, or Custom Bushings needs.