Hydraulic supply device

A hydraulic supply device coupled to a modulator block in which a path and a valve for adjusting a hydraulic braking pressure is provided, the hydraulic supply device comprising:

• a motor including a stator and a rotor;
• a rotary shaft which is coupled to the rotor and performs a rotary motion along with the rotor;
• and
• a magnet assembly coupled to the rotary shaft,
• wherein the magnet assembly includes a shaft coaxially and linearly connected to and rotated along with the rotary shaft, a magnet which is supported by one end portion of the shaft and disposed to face a motor position sensor for measuring an amount of rotation of the rotary shaft, and a tolerance ring mounted on an outer circumferential surface of the shaft and inserted into an installation groove formed in the rotary shaft to fasten the shaft to the rotary shaft, and
• the tolerance ring includes a tolerance ring body extending in a longitudinal direction of the shaft, mounted on the outer circumferential surface of the shaft, and having a ring shape and a rotation restriction protrusion formed on the tolerance ring body to restrict rotation of the tolerance ring body around the shaft.