*****Description:***** CNC Flexible Coupling Shaft Coupler Encode Connector D25 L30 Quantity :1pcs Shaft usage: 6.35mm X 6.35mm Length: 30mm Diameter: 25mm Material: Aluminum Shaft Angel: ≤2° Rated Torque: 0.5N.m Max. Torque: 1N.m Rated: In-phase operate Eccentricity error: ±0.2mm Max. Rotational(RPM): 19000 *****Shipping:***** Ship to USA: 7-15 enterprise days Ship to different countries : 10-25 business days