Augments Strength and Adds Reliability

Mehala Machines is a manufacturer of garment sewing machines in India. Mehala’s High-speed Integral Clutch Motors used in Sewing Machines had their rotors (silicone steel) fixed to shaft (En8) with interference press fits. The interference press fits hold the assembled parts together with friction and are expected to have high load bearing capability, however Mehala was receiving field complaints of rotor spin offs. When parts are assembled with the contact area is still limited to the high ‘peaks’ and ‘valleys’ on the mating surfaces and is typically less than 30 – 40% - due the load on mated parts and micro-movements these peaks and valleys are grinded off and the gaps increases resulting the spin-offs.

Eliminates Need for Expensive Machining

The drive bearing of a new model of portable cleaning machines needed to be mounted in the cast iron gear housing. As the Gear housing is cast, it is very difficult to maintain the tolerances. Machining the bearing seat area involved high machining cost and time. Henkel’s Loctite products were recommended for this application: Loctite 660 Quick Metal Retaining compound was used along with 7649 Primer to retain bearing to housing and Loctite 242 used to lock the screws of gear to housing which creates 100% metal-to-metal contact between the mating parts increasing the load carrying capability as well as preventing the area from fretting corrosion.

ProActive Maintenance Program Provides Assembly Standardization.

A Komatsu heavy equipment dealer wanted to standardize operations in their engine rebuild department. They had discovered that the same application was being performed in different ways – depending upon which mechanic was doing the work. A Loctite® Proactive Maintenance Service Program was scheduled to help put an end to this practice by determining the best product for each particular application.

Loctite® Manufacturing Reliability Gives Maintenance Team The Know-How.

An upper Midwestern paper mill operates several multifuel boilers for power and steam generation; the primary fuel being coal. Natural gas is also used to fuel the boilers when the coal supply is exhausted or interrupted. The switch-over process from coal to natural gas is expensive due not only to the cost of the fuel, but also since it requires the shutdown of parts of the paper manufacturing operation.

New Assembly Methods Increase Reliability and Safety, Reduce Labor.

NCP Products has manufactured firearms for trap shooting since 1991. Traditionally, guns have been assembled using silver solder, requiring heat for 15-20 minutes at 1100°F. Such high heat can distort and warp a gun barrel, requiring a labor-intensive, hand-straightening process. NCP Products Owner, Dennis DeVault, wanted to create an assembly process that would maintain barrel-to-barrel integrity – where every gun he manufactured shot the same pattern. Working as a member of the NCP design team, Loctite provided the right technology and assembly methods to help them achieve their goal.