Glue for bearings - which one to choose?

In today's article, we will present the principle of operation and the durability test of the bearing seating on the shaft with Loctite 638.

Glue Loctite 638 is a high quality anaerobic adhesive ideal for industrial use that effectively provides excellent results when mounting bearings. Works on all active and passive metals. Cures after cutting off air access on metal surfaces. Prevents loosening of coaxial connections. It tolerates slight contamination with oils and anti-corrosion liquids. We have carried out a test to check how much load this product can withstand.

Product is perfect for industrial applications. Its formula allows for effective and permanent seating of bearings, and eliminates the need for additional elements such as spacer rings or seals. This means that it is a simple and effective solution at the same time.

Test of the load capacity of the adhesive to seat the bearing on the shaft!

By manufacturer Loctite 638 is able to withstand very heavy loads at room temperature for long periods of time, even under heavy use. However, it should be remembered that the connection strength may vary depending on the operating conditions. At higher temperatures, the strength of this adhesive may be lower, so it is worth paying attention to the manufacturer's instructions for optimal conditions of use.

The video below shows the strength test of the bearing adhesive on the shaft, where the force needed to extrude the components was measured.

For the test, a metal ring and shaft were used loosely fitted together. Loctite 638 anaerobic adhesive was used for the installation. Using a press, the sleeves began to be symmetrically pressed out, and the pressure gauge attached to the press showed what force should be used to disassemble the connector.

The test shows that almost 900 kg of the load is needed to destroy the bearing connection on the shaft. The following diagram shows the force calculation:

Test Summary

The results of the test show that Loctite 638 can withstand very high loads and is a very good choice for the insertion of coaxial parts. Saves time on accurate machining and mounting of bearings, shafts and other coaxial components.