What should be verified when an induction heater is used to mount a bearing?

LILY Bearing | 2026-10-28

Best answer

Match the heater procedure to the bearing execution

Induction heating is one of the controlled mounting methods discussed by bearing manufacturers.

Its use does not remove the need to verify the bearing's temperature restrictions, sealing and lubricant condition, or the heater's instructions. The job also needs to establish any demagnetisation requirement specified by the equipment or bearing method, rather than assuming it occurred because the heating cycle ended. The exact heater model and program matter when deciding what the machine controls automatically and what must be checked separately. For a concrete example, the SKF TIH 15 manual distinguishes completion of heating from an interrupted power supply: the latter prevents the automatic demagnetisation step. That model-specific distinction is not a universal instruction for every heater.

Capture settings and outcomes that can be reviewed later

The record should identify the heater, selected cycle or program, temperature sensing arrangement, bearing designation and the procedure used.

Include confirmation of the required cycle completion and any applicable demagnetisation verification, without inventing a residual-magnetism limit. If a job note says only “heater used,” a later investigation cannot determine whether the correct program or sensing arrangement was selected. Preserve the actual process information and any exceptions reported by the equipment. This supports a specific review of what happened during the repair, while leaving the technical acceptance limits to the exact manufacturer instructions rather than an undocumented habit on the maintenance bench.