Bearing Mount 620 - High Temperature

The Loctite Bearing Mount 620 - High Temperature is a specialized thread locker engineered for demanding industrial and mechanical applications where elevated heat exposure is a critical factor. This product is designed for professionals, maintenance technicians, and equipment manufacturers who need reliable fastener security in high-temperature environments where standard thread lockers fail. The 1.22 oz bottle format provides a practical supply for multiple applications without excess waste.

Bearing Mount 620 achieves its high-temperature capability through a specialized anaerobic chemistry that cures in the absence of air and presence of metal, creating a flexible yet durable polymer bond around threaded fasteners. The formulation maintains strength and elasticity across a wider thermal range than standard thread lockers, preventing fastener loosening caused by thermal cycling and vibration that commonly occurs in motors, pumps, compressors, and rotating equipment. Its medium-strength formula allows for disassembly when necessary while still providing robust vibration resistance and corrosion prevention on bearing mounts and other critical connections.

This thread locker is ideal for machinery operators, industrial maintenance shops, and OEMs working with bearing assemblies, shaft couplings, and mounted equipment subjected to continuous or intermittent heat cycles. Bearing Mount 620 performs exceptionally well on steel fasteners and is compatible with most common metals used in industrial applications. For optimal results, apply a thin film to the fastener threads before assembly, allowing the anaerobic compound to cure in the confined metal-to-metal space—no clamps or accelerators typically required for standard applications.