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How To Categorize Industrial Gear Oils?

Industrial gear oils have two types: industrial gear oil or industrial closed gear oil and industrial open gear oil. Industrial closed gear oil can be named with the following table.

Category

name

characteristics

Other   related standards

ISO

China

CKB

CKB   anti-oxidized anti-rust

Industrial   gear oil

Highly   refined mineral oil with antioxidant, anti-rust agents, suitable for light   load gears.

AGMA250.04   R&O

CKC

CKC   extreme pressure

Medium   load industrial gear oil

Better erosion   resistance than CKB, suitable for medium load gears.

AGMA250.03   EP

CKD

CKD   extreme pressure

Heavy   load industrial gear oil

Better erosion   resistance and thermal stability than CKC, suitable for heavy load gears   under high temperature.

AGMA250.04   EP

CKE

CKE   worm gear

Worm   gear oil

Highly   refined mineral oil or synthetic hydrocarbon with oiliness agent, suitable   for worm gears.

AGMA250.04   COMP

CKT

CKT   synthetic hydrocarbon extreme pressure

Low   temperature medium load industrial gear oil

Have   similar functions as CKC, but with good low and high temperature performance.


CKS

CKT   synthetic hydrocarbon

synthetic   hydrocarbon gear oil

Suitable   for environment with great temperature change or chemical erosions, or other   special purposes.


 


Industrial gear oil can also be grouped according to its viscosity at 40°C. the medium viscosity value is used as the name, viscosity value varies within ±10%.


Viscosity   grade

viscosity   at 40°C

AGMA Viscosity   grade

ISO Viscosity   grade

68

61.2-74.8

2EP

VG68

100

90-110

3EP

VG100

150

135-165

4EP

VG150

220

198-242

5EP

VG220

320

288-352

6EP

VG320

460

414-506

7EP

VG460

680

612-748

8EP

VG680

 


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