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ZHAOYAO Winding Thread Elastic Top Wire Coupling£¬ Aperture 4 x 4mm - Silver
Shaft Usage: 4mm to 4mm / 0.16 to 0.16 inch Material: Aluminum alloy; Size: 25x18mm/ 0.98x0.71 inch( L*D) Feature: Set screws (Coiling Clamping); Main Color: Silver tone Flexibility of coupling shaft removes stress between the motor and driving components. The shaft couplers are widely applied to small CNC machines encoding and 3D printers Z shaft coupling£¬ simplifies the debugging difficulty.