Oil Free Bearings Manufacturing Process -Revolutionizing Linear Motion

Oil-free bearings, also known as oil-free bushings or oil-free sliding bearings, are at the forefront of high-performance fixed lubrication products. Utilizing high-strength brass as their base material and inlaid with graphite and solid lubricant, these bearings offer a reliable and durable solution for applications requiring linear motion. In this article, we’ll delve into the intricate manufacturing process that transforms raw materials into these innovative components.

The Manufacturing Process Of Oil Free Bearings:

  • Raw Material Inspection and Smelting:

    Copper and other metal raw materials undergo smelting and casting to produce copper sleeves, tubes, and rods in accordance with predetermined proportions. Samples are randomly inspected for both components and mechanical properties.

  • Material Cutting:

    Utilizing cutting machines, pipes and bars are cut into the required raw material sizes, setting the stage for further processing.

  • Semi-Cost Blank Production:

    Centrifugal casting materials, along with cut pipe and bar materials, are processed into semi-cost blanks through lathes. Random inspections for size and appearance are conducted before storing the blanks for further processing.

  • Blank Processing and Drilling:

    Before production, blank sizes and margins are checked for conformity. Automatic drilling machines are employed to create honeycomb holes in the product, covering approximately 20% of the product surface area.

  • Solid Lubricant Embedding:

    Solid lubricant, applied with glue, is embedded into the honeycomb holes of the copper alloy, ensuring that the inner and outer surfaces of the graphite protrude from the alloy matrix surface.

  • Drying Process:

    The product is dried in a dryer for about three hours, or in a dry environment for a day, allowing the solid lubricant and alloy matrix to completely solidify.

  • Cleaning and Inspection:

    Using a lathe, protruding parts of the solid lubricant and excess copper alloy are cleaned. Random inspections for size and appearance of semi-finished products are performed.

  • CNC Machining:

    Inner and outer diameters, chamfers, and end faces are processed to the required dimensions using CNC machine tools. The first inspection and random checks are conducted simultaneously.

  • Lathe Processing:

    Certain two-in-one processing steps, including cutting, chamfering, and flat end surface creation, are completed using a lathe.

  • Milling and Drilling:

    Milling machines and automatic drilling machines are employed to process end and flange faces of the products, including the creation of positioning holes.

  • Oil Pumping:

    A vacuum oil pumping machine is utilized to pump lubricating oil into the pores of the solid lubricant, ensuring sufficient oil storage and extending the product’s service life.

  • Quality Inspection:

    Products enter the inspection room for a comprehensive size and quantity inspection, eliminating any substandard products from reaching the market.

  • Packaging and Storage:

    Qualified products are packaged and stored in warehouses. Packaging options include plastic film rolls or individual packaging with polyethylene plastic nets, ensuring the integrity of the components during storage and transportation.

Precision Unveiled: Crafting High-Performance Oil Free Bearings for Seamless Linear Motion

Delve into the intricate world of manufacturing as we unveil the meticulous process behind oil free bearings. From stringent raw material inspections to the final packaging stage, witness the dedication to quality and precision. These high-performance, oil-free sliding bearings are indispensable in various industries, offering reliable and efficient solutions for applications demanding seamless linear motion. Discover the engineering excellence that goes into each component, ensuring they play a vital role in elevating performance across diverse applications.