Roller bearing, cam shaft support structure, internal combustion engine, and incorporation method of roller bearing

A roller bearing comprising:

• an outer ring formed by connecting a plurality of arc-shaped outer ring members in a circumferential direction;
• and
• a plurality of rollers arranged along a track surface formed in an inner diameter surface of said outer ring, wherein
• said outer ring has an engagement click bent formed from said outer ring's circumferential end to the radial outer side so as to engage with a housing, wherein
• said engagement click is low in hardness as compared with other part of said outer ring member.

A roller bearing comprising:

• an outer ring formed by connecting a plurality of arc-shaped outer ring members in a circumferential direction;
• and
• a plurality of rollers arranged along a track surface formed in an inner diameter surface of said outer ring, wherein
• said outer ring has an engagement click bent formed from said outer ring's circumferential end to the radial outer side so as to engage with a housing, wherein
• a wall surface of said engagement click continued to the outer diameter surface of said outer ring member and/or a wall surface of said engagement click continued to the inner diameter surface of said outer ring member comprise a plurality of parts having relatively different heights.

A roller bearing comprising:

• an outer ring formed by connecting a plurality of arc-shaped outer ring members in a circumferential direction;
• and
• a plurality of rollers arranged along an inner diameter surface of said outer ring, wherein
• said outer ring member includes an engagement click provided only at one circumferential side end of both side ends to engage with a housing, and further wherein
• said outer ring member includes:
• a projection part projecting from one circumferential side end in the circumferential direction;
• flat parts provided at axial both sides of said projection part so as to be parallel to the axial direction of the bearing;
• a recession part recessed from the other circumferential side end in the circumferential direction so as to receive said projection part of said adjacent outer ring member;
• and
• engagement clicks are provided on axial both sides of said recession part.

A roller bearing comprising:

• an outer ring formed by connecting a plurality of arc-shaped outer ring members in a circumferential direction;
• and
• a plurality of rollers arranged along a track surface formed on an inner diameter surface of said outer ring, wherein
• said outer ring member includes an engagement click provided at a position apart from said track surface of its circumferential end to engage with a housing, and further wherein
• said outer ring member includes:
• a projection part projecting from one circumferential side end in the circumferential direction;
• flat parts provided at axial both sides of said projection part so as to be parallel to the axial direction of the bearing;
• a recession part recessed from the other circumferential side end in the circumferential direction so as to receive said projection part of said adjacent outer ring member;
• and
• engagement clicks are provided on axial both sides of said recession part.

A cam shaft support structure comprising:

• a cam shaft;
• a housing holding said cam shaft;
• and
• a roller bearing supporting said cam shaft rotatably with respect to said housing, wherein
• said roller bearing includes an outer ring formed by connecting a plurality of arc-shaped outer ring members in a circumferential direction, and a plurality of rollers arranged along an inner diameter surface of said outer ring, and said outer ring member includes an engagement click projecting from the axial end to the radial outer side to engage with the housing, and
• a projection part and a recession part receiving said projection part to prevent said outer ring member from escaping from said housing are formed in opposed wall surfaces of said engagement click and said housing, respectively, and further wherein
• said outer ring member includes:
• an outer ring member projection part projecting from one circumferential side end in the circumferential direction;
• flat parts provided at axial both sides of said outer ring member projection part so as to be parallel to the axial direction of the bearing;
• an outer ring member recession part recessed from the other circumferential side end in the circumferential direction so as to receive said outer ring member projection part of said adjacent outer ring member;
• and
• engagement clicks are provided on axial both sides of said outer ring member recession part.