Key Features

• Premium Composite Copper Material Made of high-quality composite copper with sintered bronze and professional composite coating, these SF-1 oil-free bearings offer exceptional hardness, structural toughness and thermal conductivity. The upgraded wear-resistant and anti-corrosive surface effectively resists abrasion and oxidation, ensuring long service life and stable working performance under long-term continuous operation and complex temperature conditions.
• Advanced Oil-Free Self-Lubricating Design Built-in self-lubricating composite layer enables fully maintenance-free operation with no need for regular oil refilling or lubrication. It greatly reduces friction coefficient and mechanical wear, lowers equipment maintenance costs and improves overall operating stability.
• Superior Industrial Working Performance These large-size sleeve bearings feature excellent friction resistance, strong load-bearing capacity and low-noise operation. They support stable sliding and rotary motion, effectively buffer mechanical vibration, avoid jitter and friction loss, and maintain precise transmission performance for heavy-duty equipment.
• Large Size Complete Specifications Covers commonly used large industrial inner diameter sizes from 28mm to 90mm, fully meeting the assembly and replacement needs of large machinery and heavy-load industrial equipment.
• Well-Organized Storage & Easy Use All bearings are sorted by size and stored in separate compartments of a transparent storage box, allowing quick size identification, convenient picking and tidy long-term storage, effectively avoiding component loss and confusion.
• Wide Industrial Compatibility Widely applicable to textile machinery, printing equipment, hydraulic loaders, fitness equipment, agricultural machinery and various heavy industrial mechanical devices. Ideal for rotary motion guiding and linear friction reduction in professional mechanical systems.

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