A shear-type dispersing device for dispersing a mixture of a slurry or a liquid by causing the mixture to flow by centrifugal force toward an outer circumference between a rotor, and a stator that is disposed to face the rotor, comprising: a container for receiving the dispersed mixture; a cover assembly that closes an upper opening of the container; a stator that is fixed under the cover assembly; a rotor that is disposed to face a lower surface of the stator; a rotary shaft that rotates the rotor; a bearing that is disposed in the cover assembly and is located above the stator to rotatably hold the rotary shaft; and a spacer that is detachably disposed between the rotary shaft and the rotor to adjust a gap between the rotor and the stator; wherein when the spacer is disposed an axial position of the rotor in relation to the stator is fixed, wherein the cover assembly has a part for holding the bearing and a part for holding the stator that is disposed under the part for holding the bearing, wherein the part for holding the bearing has a part for controlling an axial position that controls the axial position of the part for holding the stator by abutting the part for holding the stator by means of a second spacer, and wherein the second spacer is detachably disposed between the part for holding the bearing and the part for holding the stator to adjust the axial position of the stator in relation to the part for holding the bearing by being replaced by another second spacer that has a different axial length, wherein a concave part is formed on an upper surface of the rotor so that a lower end of the rotary shaft is inserted thereto, wherein a through-hole opens on the concave part, wherein the lower end of the rotary shaft is inserted into the concave part of the rotor so that a fastening member is fixed from a lower side of the rotor while the lower end abuts the concave part across the spacer, wherein the fastening member fastens the rotary shaft to the rotor across the spacer by fixing a part thereof to the rotary shaft through the through-hole in the rotor, wherein pins are inserted into the concave part of the rotor and the lower end of the rotary shaft to transmit a rotational power of the rotary shaft to the rotor, the pins being disposed at uniform intervals along a circumferential direction, and wherein a first through-hole through which the fastening member passes and second through-holes through which the pins pass are formed in the spacer. a container for receiving the dispersed mixture; a cover assembly that closes an upper opening of the container; a stator that is fixed under the cover assembly; a rotor that is disposed to face a lower surface of the stator; a rotary shaft that rotates the rotor; a bearing that is disposed in the cover assembly and is located above the stator to rotatably hold the rotary shaft; and a spacer that is detachably disposed between the rotary shaft and the rotor to adjust a gap between the rotor and the stator; wherein when the spacer is disposed an axial position of the rotor in relation to the stator is fixed, wherein the cover assembly has a part for holding the bearing and a part for holding the stator that is disposed under the part for holding the bearing, wherein the part for holding the bearing has a part for controlling an axial position that controls the axial position of the part for holding the stator by abutting the part for holding the stator by means of a second spacer, and wherein the second spacer is detachably disposed between the part for holding the bearing and the part for holding the stator to adjust the axial position of the stator in relation to the part for holding the bearing by being replaced by another second spacer that has a different axial length, wherein a concave part is formed on an upper surface of the rotor so that a lower end of the rotary shaft is inserted thereto, wherein a through-hole opens on the concave part, wherein the lower end of the rotary shaft is inserted into the concave part of the rotor so that a fastening member is fixed from a lower side of the rotor while the lower end abuts the concave part across the spacer, wherein the fastening member fastens the rotary shaft to the rotor across the spacer by fixing a part thereof to the rotary shaft through the through-hole in the rotor, wherein pins are inserted into the concave part of the rotor and the lower end of the rotary shaft to transmit a rotational power of the rotary shaft to the rotor, the pins being disposed at uniform intervals along a circumferential direction, and wherein a first through-hole through which the fastening member passes and second through-holes through which the pins pass are formed in the spacer.