... other bushings, Fast delivery,Good quality,Competitive price bimetal bushing, JF-20 bi-metal bearingJF series bushing is made of duple ... , and multi-times rolled porous copper alloy surface layer. Features:JF-20 high percentage of tin with aluminum alloy bushing is ... ·m/s) : 10(OIL lubricating)Other bushings & bearings available too: JF-20 bimetal bushing