The shaft couplers are mainly used for servo motors, spindle, step motor,3d printer etc , Structure:Jaw / Spider Snapklik.co : 8 To 14 otor Shaft Coupling, Aluinu Flexible... Package include: 3Pcs 8x10-25x30mm Plum Couplings Features: Aluminum flexible coupler 8mm to 10mm ID bore/ 0., 31 to 0., 39 inch Offset screw for clamping to shaft Designed for light to medium duty . Three-jaw D20L25 spider coupling aluminum alloy star BW Servo Motor Shaft Coupling Aluminum Coupling Flexible Connector Flexible Coupling For CNC Stepper Motor | Australia Servo Spindle Step Motor Coupler Material: Aluminum alloy, polyurethane; Type: Plum shaped Flexible Coupling Spider, Rubber at ₹ 00/piece in Mumbai | ID: 1633297448 Wear resistant ,high hardness and excellent response. No backlash – no maintenance Compatible with NEMA 17/23 motor Outsize size:25x30mm OD / 0., 98 to 1., 18inch OD Mainly used for servo motors, spindle, step motor ,3d printer and so on.