Solid embedded self-lubricating bearing practical knowledge

Self-lubricating products have the advantages of high load-bearing, high wear-resistance, and low-speed heavy load. In the process of use, it also has a copper alloy product with self-lubricating, no maintenance, no need for oil refill, and anti-dust.

[Universal copper-based self-lubricating bearings] use effect distribution: (high-strength brass as the matrix), has a very high mechanical properties and corrosion, casting performance is good. The matrix is ​​in certain proportions (inlaid with solid lubricants), often as some high strength (wear-resistant parts). Water conservancy industry is used as (bridge support plate), (nut), (wear plate), (slider), (turbine), general structural parts and (corrosion-resistant parts): column (sleeve), (bearing), ( Thrust ring), (handle), (and gear 0. Also widely used [applied] in (heavy machinery), (ship), (metallurgical equipment).

Product General Material: Bronze No.: [ZCuZn24Al6Fe4Mn3], scientific name: [Gallery Brass]. Chemical content: The chemical formula of high-strength brass is ZCuZn24Al6Fe4Mn3, which contains about 65% copper and about 24% zinc. Aluminum can increase the strength, hardness, and corrosion resistance of brass. There are three types of room temperature brass: brass with zinc below 35%. The microstructure at room temperature consists of a single-phase alpha solid solution called alpha brass. 【Products processing performance】: High-strength brass has good plasticity, can withstand cold and hot processing, but in the forging and other hot processing, easy to appear in the temperature brittleness, the specific temperature range with the amount of Zn varies, generally in 200~700°C. Therefore, the temperature during hot working should be higher than 700°C. [Mechanical properties of the product]: Corolla brass has different zinc content and mechanical properties. For α brass, both σb and δ increase as the amount of zinc increases. Therefore, copper-zinc alloys containing more than 45% zinc have no practical value. The standard high strength brass Brinell hardness HB is greater than 200, the compressive strength is greater than 600 MPa, and the elongation is greater than 10%.

The scope of use of the solid-inlaid self-lubricating brass bushing: The high-strength copper alloy (cuzn25al5, cuzn24al6fe3mn4) is used as the base material, and holes are drilled into the working face according to the working conditions and filled with solid lubricant. The copper alloy provides a high load carrying capacity while the solid lubricant can form a lower friction pair. Under the condition of dry friction, we design a layer of pre-lubricating film on the bearing surface to ensure that the solid lubricant can be transferred to the mating part and form an effective solid lubricant film in the shortest time. Technical parameters Material characteristics: • Can be used for a long time without needing Maintenance; • Designed for very high static and dynamic loads; • Very low and stable coefficient of friction, no “sticky” phenomenon; • Resistance to dust, corrosion, impact and edge loads; • Metals Substrate has good shock absorption ability; • Can be used in a wide temperature range; • Suitable for reciprocating, rotating and swinging.