Vehicle bearing device

A vehicle bearing device with a hub,

• wherein the hub is a portion to which a brake rotor is fixed and which has a cylindrical portion and a flange portion;
• the flange portion has a plurality of bolt hole formation portions protruding outwardly from the cylindrical portion, one pin hole formation portion, one reference position intermediate portion, two adjacent position intermediate portions, one or a plurality of separate position intermediate portions, and a balance adjustment portion;
• the reference position intermediate portion is formed between the bolt hole formation portions adjacent to each other in the peripheral direction of the cylindrical portion;
• the adjacent position intermediate portions are formed between the bolt hole formation portions adjacent to each other in the peripheral direction of the cylindrical portion, and are formed at positions adjacent to the reference position intermediate portion with the bolt hole formation portion therebetween in the peripheral direction of the cylindrical portion;
• the separate position intermediate portions are formed between the bolt hole formation portions adjacent to each other in the peripheral direction of the cylindrical portion, and are formed at positions adjacent to the adjacent position intermediate portions with the bolt hole formation portions therebetween in the peripheral direction of the cylindrical portion and at positions on the side opposite to the reference position intermediate portion with respect to the adjacent position intermediate portions;
• the bolt hole formation portions have hub side bolt holes;
• the plurality of bolt hole formation portions are formed at equal intervals in the peripheral direction of the flange portion;
• the hub side bolt holes are formed as portions into which wheel bolts for fixing the hub and the brake rotor to each other are inserted;
• the pin hole formation portion is formed at the reference position intermediate portion, and has a hub side pin hole;
• the hub side pin hole is formed as a portion into which a pin for fixing the hub and the brake rotor to each other is inserted;
• and
• the balance adjustment portion is formed at the one or the plurality of separate position intermediate portions, and a weight of the balance adjustment portion is equal to a weight of the pin hole formation portion.