Abstract: An expandable sleeve for an interference fastener has a hollow elongate stem extending axially between an insertion end and a head portion. The elongate stem has an inside surface and an outside surface. A portion of the stem has a fluted shape and/or has a cylindrical shape with a conical portion.

Abstract: A bolt for an interference fastener and a fastener system is provided. The bolt has a body extending axially between a first end and a second end. The body has a threaded area extending axially inward from the second end and a head configured on the first end. A cylindrical expansion area extends axially between the head and the transition area. The transition area is disposed axially between the cylindrical expansion area and the threaded area.

Abstract: An expandable sleeve for an interference fastener has a hollow elongate stem extending axially between an insertion end and a head portion. The elongate stem has an inside surface and an outside surface. A portion of the stem has a fluted shape and/or has a cylindrical shape with a conical portion.

Abstract: A seal for a bearing has a first and a second circumference, and an anchor portion proximate to the first circumference. A span portion extends from the anchor portion towards the second circumference, and a lip extends from the span portion towards the second circumference. The lip protrudes from the span portion transversely to the span direction. A bearing and seal assembly includes a first ring and a second ring in rotatable engagement with the first ring. The first ring defines a groove and the second ring defines a contact surface. The seal is mounted in the groove, the span portion extending from the anchor portion towards the second ring, and the lip extending from the span portion towards the second ring, engaging the contact surface. The bearing and seal assembly may be used as a pitch bearing and/or a yaw bearing in a wind turbine.