Sintered bearings for resin inserts | Providing anti-extrusion and anti-rotation shapes without machining.

Sintered bearings for resin inserts, addressing cost challenges related to securing fastening force and preventing disengagement and rotation.

In the design of inserting bearings into resin parts, the challenges are "how to prevent the bearings from coming out during use" and "how to prevent misalignment in the rotation direction." Adding additional processing for retention and rotation prevention increases the number of processes and leads to higher costs. Daimet's sintered bearings for resin inserts feature a non-through groove on the outer circumference and an outer diameter expansion section formed by molding. This achieves a shape that enhances the fastening force with the insert resin without the need for machining. ■ Shapes for resin inserts ▼ Non-through grooves on the outer circumference formed by molding ▼ An outer diameter expansion section to prevent axial displacement ▼ Outer shape to prevent rotation misalignment ■ Support for irregular inner and outer diameters ▼ Irregularities in the inner or outer diameter achieved through molding ▼ Utilized for preventing shaft rotation in thrust sliding parts ■ Cost reduction ▼ Eliminates additional machining processes, balancing shape formation and cost reduction This can be utilized for rationalizing designs that include fastening with resin and preventing shaft rotation, among other peripheral components. Documents summarizing the shapes and functions of sintered bearings with irregular inner diameters for resin inserts, as well as more detailed benefits of process reduction and enhanced fastening force without machining, can be downloaded below.

Metal bearings