JTW self-lubrication thrust washers: in colliers brass substrate Mosaic of graphite solid lubricant, such as a high performance solid lubricant., large carrying capacity, good wear resistance, suitable for areas of low speed and heavy loading.Can work out all kinds of oil groove and oil hole in friction surface and Mosaic solid lubricant, and can adapt to different environmental conditions.Product has already been widely used in automobiles, motorcycles, gear pump and lifting equipment, etc.