When a shaft wears down or a bearing housing becomes ovalized, the traditional solution is often expensive: welding, machining, or replacing the entire assembly. But there is a third path—one that lives inside a small bottle. Enter .

Apply 360 degrees around the inner surface (for housings) or outer surface (for shafts). For vertical shafts, apply to the leading edge of the pin so it spreads during insertion.

Slide the parts together with a twisting motion to spread the adhesive evenly. Do not "pump" the parts in and out—this introduces air bubbles.

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For passive metals (stainless steel, zinc, anodized aluminum) or large gaps (>0.3mm), use an activator like Loctite 7471 or 7649. This speeds up cure time from 24 hours to 30 minutes.

In the world of industrial machinery, a few thousandths of an inch can mean the difference between a rotor spinning true for a decade or a catastrophic bearing seizure within a month.

Use a solvent cleaner (acetone or Loctite 7063). Remove all oil, grease, and old threadlocker. The surface must be "water-break free" (where water forms a sheet, not droplets).