Magnet overmolding and insert molding around shafts, hubs, bushings, and carriers to reduce adhesive assembly risk.
Insert Molded Magnet Assemblies is most relevant when best for programs where assembly alignment, adhesive reliability, or BOM reduction matters. Typical product programs include Shaft-mounted sensor rotors, Motor hubs, and Bearing sleeves, so the early review should confirm insert cleaning, retention, knurling, and pull-out force assumptions.
Before sample tooling, align on 2D/3D drawing, material target, magnetic pattern, and sensing datum and operating temperature, vibration, media exposure, and lifetime requirement. The first acceptance check is insert retention (Pull-out or torque resistance target defined by assembly), because the molded magnet must stay locked to the shaft or hub through vibration and thermal cycling.
The main risk is brittle sintered magnet carried into a vibration-critical assembly; control it by review bonded magnet material and molded geometry when chipping, cracking, or adhesive failure can affect functional safety. Also review validation handoff and magnetic pattern accepted without measurable criteria before moving from prototypes to repeat production.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Insert retention | Pull-out or torque resistance target defined by assembly | The molded magnet must stay locked to the shaft or hub through vibration and thermal cycling. |
| Validation handoff | Operating temperature, vibration, media exposure, and lifetime requirement | It connects Insert Molded Magnet Assemblies design intent to sample approval, lot inspection, and production sourcing decisions. |
Yes. Share the shaft material, surface condition, retention target, and drawing so insert retention and molding feasibility can be reviewed before tooling.
Include 2D/3D drawing, material target, magnetic pattern, and sensing datum, operating temperature, vibration, media exposure, and lifetime requirement, and sample quantity, tooling target, annual forecast, destination, and PPAP needs. If the part is tied to automotive or safety-critical sensing, also include PPAP, traceability, and magnetic test expectations.
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Include drawing, material, pole pattern, temperature, compliance, and PPAP needs.
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