5pcs 25mm×35mm×12mm Bass Bushing Bushed Bearings Sleeve，Brass Sets，self-lubricating Oil-Free Bushing

★ Graphite copper sleeve, also known as self-lubricating bearing, is a self-lubricating property in which well-ordered and appropriately sized holes are formed on the friction surface of the copper sleeve as a metal substrate and embedded with graphite or disulfide Molybdenum acts as a solid lubricant. ★ Graphite copper sleeve has the characteristics of strong bearing capacity, impact resistance, high temperature resistance and strong self-lubricating ability. It is especially suitable for heavy loads, low speed, reciprocating or oscillating etc. which are difficult to lubricate and form an oil film ★ Working principle of graphite copper sleeve: Generally, solid lubricant accounts for 20-30% of the friction surface area. The lubrication principle of the graphite copper sleeve self-lubricating bearing is that during the sliding friction process between the shaft and the bearing, part of the graphite particles are transferred to the shaft and the bearing. On the friction surface, a relatively stable solid lubricating diaphragm is formed to prevent direct adhesive wear of the shaft and bearing. This rational combination complements the respective performance advantages of metal alloys and non-metallic anti-wear materials, that is, through the high load-carrying capacity of the metal, the lubricating properties of the anti-friction material are obtained.

• Material: high strength brass (chemical formula ZCuZn24Al6Fe4Mn3)
• Lubrication method: oil-free self-lubricating (graphite produces stone mold)
• Size: inner diameter x outer diameter x length
• Inside diameter:25mm,Outer diameter:35mm,Length:12mm.
• Packing Quantity:5pcs