GEAR LUBRICATION BASICS


The motion between gear teeth as they go through mesh is a combination of sliding and rolling. The type of gear, the operating load, speed, temperature, method of application of the lubricant, and metallurgy of the gears are all important considerations in the selection of a lubricant.

Industrial gearing may be enclosed, where the gears and the bearings that support them are operated off the same lubricant system; or open, where the bearings are lubricated separately from the gears themselves.

Due to the high sliding contact encountered in enclosed worm and hypoid gears, lubricant selection for these should be considered separately from lubrication of other types of enclosed gears.

As with all equipment, the first rule in selecting a gear lubricant is to follow the manufacturer’s recommendation, if at all possible. In general, one of the following types of oils is used:

Rust- and Oxidation-Inhibited (R & O) Oils.
R & O oils are high-quality petroleum-based oils containing rust and oxidation inhibitors. These oils provide satisfactory protection for most lightly to moderately loaded enclosed gears.

Extreme-Pressure (EP) Oils.
EP oils are usually high-quality petroleum-based oils containing sulfur- and phosphorus-based extreme-pressure additives. These products are especially helpful when high-load conditions exist and are a must in the lubrication of enclosed hypoid gears.

Compounded Oils.
These are usually petroleum-based oils containing 3 to 5 percent fatty or synthetic fatty oils (usually animal fat or acid less tallow).They are usually used for worm gear lubrication, where the fatty content helps reduce the friction generated under high sliding conditions.

Heavy Open-Gear Compounds.
These are very heavy bodied tarlike substances designed to stick tenaciously to the metal surfaces. Some are so thick they must be heated or diluted with a solvent to soften them for application. These products are used in cases where the lubricant application is intermittent.

A number of gear lubrication models and viscosity selection guides exist. In the United States, the most widely used selection method employs the American Gear Manufacturers Association (AGMA) standards. Under its specifications for enclosed industrial gear drives, the AGMA has defined lubricant numbers, which designate viscosity grades for gear oils.

Open gears operate under conditions of boundary lubrication. The lubricant can be applied by hand or via drip-feed cups, mechanical force-feed lubricators, or sprays.

Heavy bodied residual oils with good adhesive and film-strength properties are required to survive the relatively long, slow, heavy tooth pressure while maintaining some film between applications of lubricant. Several PC software programs exist to aid in lubricant selection to reduce wear, scuffing, and pitting of gear-tooth surfaces.

Related post



9 comments:

Unknown said...

What a wonderful post, it's amazing
Diamond cut alloy wheel refurbishment

Unknown said...

but somethings are missing like any step of lubrication.
MRO Supply com.

Unknown said...

This is an awesome article a debt of gratitude is in order for sharing this useful data. I will visit your web journal consistently for some most recent post. Get More Info

James Feder said...

Wonderful great going, I love your work and look forward for more work from your side. I am a regular visitor of this site and by now have suggested many people. Steel Castings

service said...

Thank you for some other informative blog. Where else could I get that type of information written in such an ideal means? I have a mission that I’m just now working on, and I have been at the look out for such information. gear

Curt Lennix said...

INTERNET SCAM ALERT‼️

The internet today is full of SCAM ADS, mostly in comments of various sites and blogs. A large number of individuals have been victims of scam and lost a lot of money to SCAMMERS. Most of the common scam you can see are -:
❌BANK LOAN SCAM. ❌BINARY OPTIONS SCAM.
❌MONEY MULTIPLICATION SCAM. ❌HACKING SCAM. ❌GETTING DEGREE SCAM. ❌SHOPPING SCAM and lost more..........

But here is a good news to everyone who has been a victim of INTERNET SCAM❗️
You can get your money back from the scammer, and can even get more than what you lost, No Authorities will not been involve just the genius of our skill.

WHO ARE WE⁉️
We are PYTHONAX ! A group of skilled Hackers who have dedicated our time to helping individuals to get back thier money from INTERNET SCAMMERS. A research was carried out and an approximation of more than $3billion USD annually was said to be lost to INTERNET SCAM. This is so wrong and that’s why we have decided to help individuals get thier money.

HOW DO WE OPERATE⁉️
We use a RAT(Remote Access Trojan) to take over the SCAMMER(s) device(Phone or Computer) and take back your money by accessing their Bitcoin wallets or Bank Account. Most of this scammers use their Bitcoin to save money they get from SCAM activities. This is because Bitcoin keeps the money hidden from FINANCIAL INSTITUTIONS BOARD from getting to see the money they can’t give account for.

If you have been a Victim of INTERNET SCAM, then you should contact us via the Email below
Email-: pythonaxservices@gmail.com
pythonaxhacks@gmail.com




Pythonax.
2020 © All Right Reserved.

Photo Tour said...

Hello! Quick question that’s completely off topic. Do you know how to make your site mobile friendly? My blog looks weird when browsing from my iphone. I’m trying to find a theme or plugin that might be able to resolve this issue. If you have any suggestions, please share. With thanks! https://royalcbd.com/cbd-legal-status/

AE Filters said...

AEFilters is specialized in supplying filters for marine main engines, Auxiliary engines and generators manufactured by Volvo, Caterpillar, Cummins, EMD, Detroit Diesel (GM), Yanmar, Rolls Royce, Bergen, Wartsila, Man-B&W and more.

Lube Oil Filters

Roopam Steel said...

I read your blog now share great information here.
Duplex Steel Pipe

Post a Comment