Harmonic Gearbox CSF-65-100-2UH

Harmonic Drive · HD Agent

Active anti‑scuffing additives are only used in heavy‑load reducers.For the harmonic drive reducer CSF‑65‑100‑2UH for robotic arms, under light load conditions, such additives can cause significantly higher gear wear due to chemical reactions than gears lubricated with pure mineral oil.

To shorten the running‑in period of gear drives, especially for gears with hard tooth surfaces and poor machining accuracy, it is reasonable to use active additives.After running‑in, the reducer can be lubricated with additive‑free mineral oil or lubricating oil containing mild anti‑wear additives.

The corrosivity of lubricating oil is important both when the reducer is operating and when it is stationary.Therefore, various anti‑corrosion additives are often added to lubricating oils to improve their anti‑corrosion properties.Such additives produce a slight detergency without impairing the performance of lubricating oils containing other additives.

Experiments show that AKOP‑1 is an effective anti‑corrosion additive that acts not only as a corrosion inhibitor but also protects lead and its alloys, non‑ferrous metals, and ferrous metals.AKOP‑1 was added to the high‑speed planetary harmonic drive reducer CSF‑65‑100‑2UH for robotic arms, which is normally lubricated with a mixture of 75% No. 22 turbine oil and 25% aviation oil.Tests confirmed that adding 10% AKOP‑1 anti‑corrosion additive to the above oil blend did not reduce the load‑carrying capacity determined by the contact strength of the reducer.The quenched and tempered hardness of the internal gear ring remained unchanged.The planetary gears and sun gear were carburized, and the rolling bearings continued to operate satisfactorily.

Application of Adjusting Shims in Bearing Assemblies

To adjust the axial clearance of rolling bearings, steel adjusting shims are usually installed at one end of the bearing support.When the axial position of the shaft must be adjusted, adjusting shims should be fitted to both end covers.

When the bearing is fixed by a shaft cover, the adjusting shim shall be installed between the housing end face and the bearing surface of the end cover to prevent deformation of the shim when the bolts are tightened.When an inserted end cover is used, the adjusting shim shall be placed between the end face of the inserted end cover and the outer ring of the bearing.

In assemblies with axial preload during installation where the shaft or hub has low rigidity, contact corrosion may occur on the end faces of connected parts due to alternating minor deformations, especially under varying loads.Contact corrosion can wear down the shims, reduce the axial dimension of parts mounted on the shaft, and consequently cause loose connections.In such cases, the thickness of the adjusted shim should be maintained at not less than 0.4 mm.When adjusting axial clearance, the entire shim may be ground slightly thinner.

Adjusting shims must be installed when bearing rings are under local loading, but are not required under cyclic loading.