Super torque can absorb vibration, appropriate a large torque transmission. Wear resistant, high hardness and excellent response. Mainly used for servo motors, spindle, step motor etc.. NOTE:The shaft coupler is not elastic, can not modify the concentricity. Shaft must be located in a straight line. If your equipment is eccentric already, then it will make noise and cause off-centering.Please be cautious before your final purchasing, thank you. Specification:Type: Plum ShapedSize: 55 x 40mm/ 2.16 x 1.57 inch( L*D)Bore Diameter: 15mm to 20mm/ 0.59inch to 0.79inchMaterial: Body: Aluminum Alloy; Sleeve: PolyurethaneMain Color: Silver Tone, Red Package Content:1 x Plum coupling
