A. Retaining compounds are used in cylindrical attachment applications such as securing a bearing on a shaft, press fits, slip fits, etc., to replace mechanical fasteners like set screws.
A. We suggest a slip fit. The optimum fit for thinner products like Loctite® Retaining Compound 609 & 603 is 0.001-0.003” (0.025-0.076 mm) on the diameter. The optimum fit for thicker products like 620 and 638 is 0.002-0.004” (0.051-0.102 mm) on the diameter.
A. Yes. You can simply apply Loctite® Retaining Compounds to both the inner and outer side of the spline and assemble it. It will prevent backlash, which is a major cause of assembly failure.
A. As you have to repair often, we recommend a medium-strength product, Loctite® 641 Retaining Compound.
A. Normally the temperature goes very high as you assemble an enlarged housing to a slip gear. Loctite® has a product that cures properly at high temperature and provides a very good bonding strength. For further information, please contact the Loctite® technical customer service team.
A. Yes, Loctite® has a program called “Retcalc” to help customers design the ideal retaining assembly and select the best-fitting type and adhesive. For more information, please contact Loctite® technical customer service.