Rolling bearing ring unit and method of producing a rolling bearing ring unit

A rolling bearing ring unit comprising:

• at least one inner bearing ring having at least one raceway and a central axis;
• and
• at least one electrically insulating element fixed to the bearing ring;
• wherein a first imaginary half-plane extends from the central axis and a second imaginary half-plane extends from the central axis and is angularly spaced from the first half-plane, a section of the insulating element located between the first half-plane and the second half-plane being sized and formed such that a radial distance between the raceway of the inner ring and the central axis is greater than a maximum radius of any point on the section of the insulating element about the central axis.

A method of producing a rolling bearing ring unit comprising the steps of:

• providing at least one bearing outer ring having at least one raceway;
• and
• molding at least one electrically insulating element to the at least one bearing outer ring with a mold form such that a part of a radially inner surface of the electrically insulating element touches a part of a contact surface area of the mold form at least temporarily during molding;
• wherein a distance of the part of the contact surface area from a central axis of the bearing outer ring is greater than half of a maximum diameter of the raceway.

A method of producing a rolling bearing ring unit comprising the steps of:

• providing at least one bearing inner ring having at least one raceway;
• and
• molding at least one electrically insulating element to the at least one bearing inner ring with a mold form such that a part of a radially outer surface of the electrically insulating element touches a part of a contact surface area of the mold form at least temporarily during molding;
• wherein a distance of the part of the contact surface area from a central axis of the bearing inner ring is less than a distance of the raceway from the central axis.