BPABDEITR Brass-Graphite-Copper Plain Bearing Bushings, Various Sizes (25 x 32 x 40 mm)

Description

• Designed for low friction and high-temperature resistance, supporting smooth operation in demanding environments
• Made of brass; inner bore tolerance: 0.018 mm; outer diameter tolerance: 0.009 mm
• Graphite particles automatically form a lubricating film during operation, maintaining a stable coefficient of friction of 0.080.12 and reducing the need for frequent maintenance
• Surface roughness controlled to Ra 0.8 m for a play-free fit with the drive shaft and effective reduction of operating noise
• Compatible with drive systems using shaft diameters from 8 to 100 mm, including textile machinery, industrial robots, and new-energy vehicles

Type: Mechanical component Dimensions: Inner diameter outer diameter height This bearing uses copper-based materials and integrated solid-lubricant technology and was specifically developed for industrial automation and precision-transmission systems. Graphite particles are evenly embedded in the bearing's inner wall, creating a naturally self-lubricating system that eliminates the need to add lubricants, effectively reduces friction, and lowers equipment maintenance costs. With a coefficient of friction of only 0.08 to 0.12, it provides stable lubrication across a temperature range of -20C to 280C and can help prevent galling and wear. Applications include bearings for industrial robots, feed systems for CNC machine tools, transmission units for packaging machinery, guide components for hydraulic systems, and transmission mechanisms for new-energy equipment. Widely used in textile machinery such as combing machines and looms; printing equipment such as offset and flexographic presses; mining machinery such as conveyor belts and crushers; agricultural machinery such as tractors and harvesters; and automotive parts such as steering and suspension systems.

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