8020 High Performance Bronze Bushing Roller Wheel

T-Slot Aluminum Framing t slot roller wheel 1pcs 20*85*41mm aluminum, anti-corrosion pulley roller wheel, for injection molding machine safety push door 25mm diameter rail 1PCS High-precision T-slot U- tickets slot neuschwanstein roller 2 , which works on the cam on the large bevil wheel c ' , so that every time the shaft d turns round the roller 2 comes in contact with the notch I

through wall mail slot T dimension on either side when assembled Therefore, the width when assembled = + × 2