ENGINEERING MACHINERY WZB-2Y DX BUSHING WZB-2 boundary lubrication bearing is based on a composite material with 3 firmly bonded layers:stel as backing.sintered porous bronze powder as interlayer and modified POM as lining layer.It works well under working condition of low speed, heavy duty and normal temperature.It is cost effective and it has longer working life when it act as substitute of normal copper sleeves.It is widely applied in auto chassis, forging machine,metallurgical and mining equipment,construction machinery, power station,strip rolling industries etc. Contact us +86 151 57316471 +86 0573 84517886 jayson@jswzbearing.com No. 12, Hongwei North Road, Ganyao town, Jiashan County, Jiaxing, Zhejiang, China.