worm gearing

We need way more info to help with this.

1) materials of worm gear and shaft

2) what kind of bearings

3) what type of lubrication

Check with the manufacturer. They will be able to give you specifics. All we can give you are guidelines.

1.Material for WORM shaft is - 20 MnCr 5 & Worm Wheel - Phospher Bronze

2.Taper roller bearings.

3.Gears are submerged under oil Elcon 220 (i.e oil filled lubrication)

4. Loading?

5. Alignment specification, straight, angled?

6. Application?

7. And most important of all! Be much more specific!

The critical point in a worm gear is the sliding between the worm and gear flanks. The oil viscosity has to be big enough to support the tangential load. Since you do not give any indication with respect to the module or pitch of the gear it is not possible to estimate neither the relative sliding velocity nor the load so that it is difficult to estimate up to which temperature the oil will still provide the correct viscosity. In general the manufacturer of the gear has all data concerning the acceptable temperature for the oil he specifies. If the used oil is different in many cases the responsibility is rejected. The reason is that many times due to the high loads specific oils with additives are used so that not only the viscosity is the critical parameter.

With 220 I like to keep the oil between (20-70c) 70-160 F. Below 20c and everything starts to get sticky (power loss). Above 70c than the oil begins to break down in 1/2 lives. Are you looking at high ambient temperature? Because this thing is not running that fast or have that much load, it seems. As the folks said above "NEED MORE INPUT". 'and I caught the fish, this far from the boat'.

Simplest answer...if, AFTER running at load, it is too warm for your hand you need a higher grade lubricant.

MR. GUY