Magnetic head

A magnetic head formed by the joinder of two magnetic core half members with a gap forming film between the two magnetic core half members, said head having a recording sliding surface and a pair of contact width defining rabbets formed on opposite sides of said head in said recording medium sliding surface, said rabbets having widths delimiting the width of contact between recording medium and said recording medium sliding surface of said head, said rabbets having depths as measured from said recording medium sliding surface which are less than the width of contact between the recording medium and said recording medium sliding surface of said head, wherein,

• the contact width of the magnetic recording medium sliding surface is set to a value of 55.+-.6 .mu.m, the depths of the contact regulating rabbets are set to 37.+-.12 .mu.m, and a value R of a corner portion of the contact regulating rabbets are set to not more than 16 .mu.m;
• the contact width of the magnetic recording medium sliding surface and the depth of the contact width recording rabbets are substantially as a whole;
• and
• the magnetic recording medium sliding surface is tapered on an entrance side of the magnetic recording medium during traveling of the magnetic recording medium, and the magnetic recording medium is removed on an exit side of the magnetic recording medium sliding surface.

A magnetic head formed by the joinder of two magnetic core half members with a gap forming film between the two magnetic core half members, said head having a recording sliding surface and a pair of contact width defining rabbets formed on opposite sides of said head in said recording medium sliding surface, said rabbets having widths delimiting the width of contact between recording medium and said recording medium sliding surface of said head, said rabbets having depths as measured from said recording medium sliding surface which are less than the width of contact between the recording medium and said recording medium sliding surface of said head, wherein,

• the contact width of the magnetic recording medium sliding surface is set to a value of 55.+-.6 .mu.m, the depths of the contact regulating rabbets are set to not less than 25 .mu.m and not more than 45 .mu.m, and a value R of a corner portion of the contact regulating rabbets are set to not more than 16 .mu.m;
• the contact width of the magnetic recording medium sliding surface and the depth of the contact width recording rabbets are substantially as a whole;
• and
• the magnetic recording medium sliding surface is tapered on an entrance side of the magnetic recording medium during traveling of the magnetic recording medium, and the magnetic recording medium is removed on an exit side of the magnetic recording medium sliding surface.

A magnetic head formed by the joinder of two magnetic core half members with a gap forming film between the two magnetic core half members, said head having a recording sliding surface and a pair of contact width defining rabbets formed on opposite sides of said head in said recording medium sliding surface, said rabbets having widths delimiting the width of contact between recording medium and said recording medium sliding surface of said head, said rabbets having depths as measured from said recording medium sliding surface which are less than the width of contact between the recording medium and said recording medium sliding surface of said head, wherein,

• the contact width of the magnetic recording medium sliding surface is set to a value of 55.+-.6 .mu.m, the depths of the contact regulating rabbets are set to 37.+-.12 .mu.m, and a value R of a corner portion of the contact regulating rabbets are set to not more than 16 .mu.m;
• the contact width of the magnetic recording medium sliding surface and the depth of the contact width recording rabbets are substantially as a whole;
• the magnetic recording medium sliding surface is tapered on an entrance side of the magnetic recording medium during traveling of the magnetic recording medium, and the magnetic recording medium is removed on an exit side of the magnetic recording medium sliding surface;
• each magnetic core half member consists of monocrystalline ferrite;
• each magnetic core half member has a portion consisting of monocrystalline ferrite near the magnetic gap, and the remaining portion consists of polycrystalline ferrite;
• and
• a metal magnetic film having a high saturation magnetic flux density is formed on each of the opposite surfaces of the pair of magnetic core half members.