1. A mixture of modified polyoxymethylene (POM) and lead with a thickness of 0.3-0.5mm has high wear resistance, and even has a low friction coefficient in the case of instantaneous oil shortage. Oil storage pits with spiral angles arranged on the surface of bearings must be fully coated with lubricating grease during assembly
2. The copper powder layer is 0.2-0.3mm, which has good load-bearing capacity and wear resistance. The good thermal conductivity can timely transfer the heat generated during the operation of the bearing. Composite materials can penetrate into the gaps of copper powder balls, improving the bonding strength
3. Low carbon steel with a thickness of 0.4-2.2mm improves the bearing capacity and heat transfer effect
4. Copper/tin electroplating coating, with a copper coating of 0.008mm and a tin coating of 0.005mm, provides excellent corrosion resistance for bearings.
main parameter TECHNICAL DATE
Maximum load capacity
Static bearing capacity
250N/mm2
Operating temperature
-40℃~＋130℃
Low speed operation
140N/mm2
Maximum linear speed
Grease
2m/s
Rotating and swinging movements
70N/mm2
Continuous oil supply
4m/s
Maximum PV value
2.8N/mm2.m/s
Thermal conductivity coefficient
4W(m.K)-1
Linear expansion coefficient
11x10-6K
friction coefficient
0.05~0.20
APPLICATION CHARACTER
Especially suitable for rotating and swinging movements under heavy loads and low speeds, as well as parts that frequently open and close under load and are not easily lubricated by fluids; Under boundary lubrication conditions, it can be used for a long time without the need for oil maintenance, and adding oil during the process can prolong the service life of the bearing; The plastic layer on its surface can leave a certain margin during the forming and processing of the shaft sleeve. After being pressed into the opening, it can be processed by itself to achieve better assembly dimensions
At present, it is mainly used in metallurgical machinery, mining machinery, water conservancy machinery, automotive chassis, construction machinery, agricultural machinery, steel rolling machinery, etc.
