Providing Precision Lubricants and Lubrication Solutions

     
 

Gear Oil: RPL-K Series

Series Range:

RPL-K50ND RPL-K140ND  
RPL-K75/90ND RPL-K250ND  
RPL-K9140ND RPL-K1000ND  


Product Description:

The RPL-K series gear oil is a semi-synthetic, EP, non-leak, MoS fortified gear oil that is formulated using highly refined, hydro-treated paraffin base oils and synthetic PAO fluids with special additives to provide excellent EP and anti-wear performance.

At start-up, typical conventional gear oils have a tendency to push lubricants to the side of a gearbox by the centrifugal force of the rotating gears. As the gears turn, the splashing action eventually provides lubrication. But at start-up, when the metal-to-metal wear is the generally the greatest, the gears lack sufficient lubrication. The RPL-K gear oils are different. Immediately when the gears start, the RPL-K gear oils adhere to the gear teeth, and by resisting centrifugal force, they coat the gears from the outset providing a protective film of lubrication right from the initial critical moments.

The RPL-K gear oils are tacky. They contain a shear stable tackifier for extra-adhesive to prevent drip-drown, leak and splatter. Gear box leakage is also virtually eliminated, especially when there are worn seals. The overall result is a noticeable reduction in overall oil consumption. As well, the oil film resists fling during high-speed operations and will remain on the gears while the machine is idle.

All RPL-K gear oils contain a stable colloidal suspension of Molybdenum disulfide (MoS), an additive that helps forms a thin protective layer of solid particles on metal surfaces and fills in the microscopic peaks and valleys (asperities) that are always present on metal surfaces, no matter how highly polished or machined. Then, acting essentially like tiny ball bearings, the MoS will "roll" the load up to 500,000 pounds per square inch, preventing metal-to-metal contact and thereby reducing friction and wear.

RPL-K gear oils are also formulated to resist the formation of acidic by-products that tend to cause soft sludge deposits or hard varnish and lacquer coatings to form on the metal surfaces. These deposits lead to friction, increased heat, increased energy consumption and eventually the possibility of premature equipment breakdown.

The RPL-K gear oils are used in a wide variety of industrial and mobile equipment including mining, material processing, cement manufacturing, construction, steel and paper mills, tile, insulation, glass and textile manufacturing, farm machinery, printing and binding machinery, elevators, escalators and process mixing equipment. They provide superior lubrication for enclosed gear drives and reducers from fractional horsepower gear motors to large high horsepower units on metal rolling mills and mine hoists using a wide variety of gears including spur, bevel, herringbone and worm gear. They are recommended for lubrication of industrial hypoid type gears, gears subject to shock loading, transmission gear cases and worm drive axles on mobile contractor type equipment, open pit and underground mine machinery where highly loaded components such as reduction or power transmitting gears are protected.

Features and Benefits:

High EP and anti-wear properties

Excellent film strength and adhesion to metal surfaces

Tacky for extra-adhesive properties

High viscosity indices

Superior rust and corrosion protection

Non-foaming

Excellent demulsibility - separates readily from water

High temperature oxidation and thermal stability

Long lubricant life, extended oil drain intervals

Non-corrosive to copper, bronze and other non-ferrous parts of gear sets

Reduced friction, lower operating temperatures and decreased power consumption especially in heavily loaded gear sets up to 20 F reduction in temperature and 5% energy efficiency improvement

Multi-Grade: one grade of oil can be used over a wider load-carrying range
(see chart Primary and Secondary Coverage)

 


 

Typical Operating Properties:

PROPERTY RPL-K50ND RPL-K75/90ND RPL-K9140ND TEST
ISO Grade 100 150 220 --
Colour Black Black Black --
Viscosity,
cSt@40C
98.3 cSt 169 cSt 208.1 cSt ASTM D445
Viscosity,
cSt@100C
11.8 cSt 17.1 cSt 19.9 cSt ASTM D445
Viscosity Index 125 131 115 ASTM D2270
Flash Point 221C
430F
232C
450F
243C
470F
ASTM D92
Pour Point -28C
-20F
-23C
-10F
-23C
-10F
ASTM D97
Rust Test Pass Pass Pass ASTM D665
Copper Corrosion
24hrs@100C
Pass Pass Pass ASTM D130
4-Ball EP Test 250 kg 250 kg 250 kg ASTM D2783
4-Ball Wear Test 0.28 mm 0.28 mm 0.28 mm ASTM D2266
Load Wear Index 45 kg 45 kg 45 kg --
Timken EP Test 60 lbs 60 lbs 60 lbs ASTM D2782
FZG Gear Test, 12 Stages Pass Pass Pass --
Specific Gravity
(Water = 1.0)
0.920 0.920 0.920 ASTM D1298
Operating Temperature Range Low -23C
-10F
-21C
-5F
-12C
10F
--
High 154C
310F
163C
325F
163C
325F
--

 

PROPERTY RPL-K140ND RPL-K250ND RPL-K1000ND TEST
ISO Grade 320 460 680 --
Colour Black Black Black --
Viscosity,
cSt@40C
312 cSt 419.2 cSt 975.1 cSt ASTM D445
Viscosity,
cSt@100C
25.7 cSt 32.2 cSt 49.6 cSt ASTM D445
Viscosity Index 107 103 101 ASTM D2270
Flash Point 222C
432F
257C
495F
271C
520F
ASTM D92
Pour Point -18C
0F
-18C
0F
-18C
0F
ASTM D97
Rust Test Pass Pass Pass ASTM D665
Copper Corrosion
24hrs@100C
Pass Pass Pass ASTM D130
4-Ball EP Test 250 kg 250 kg 250 kg ASTM D2783
4-Ball Wear Test 0.28 mm 0.28 mm 0.28 mm ASTM D2266
Load Wear Index 45 kg 45 kg 45 kg --
Timken EP Test 60 lbs 60 lbs 60 lbs ASTM D2782
FZG Gear Test, 12 Stages Pass Pass Pass --
Specific Gravity
(Water = 1.0)
0.920 0.920 0.920 ASTM D1298
Operating Temperature Range Low -1C
30F
4C
40F
4C
40F
--
High 163C
325F
163C
325F
163C
325F
--

* Please note: The information, data and tables contained in this website have been carefully edited at the time of publication. However, no responsibility for possible errors or omissions can be assumed. We recommend contacting our Application Support Staff to discuss your specific requirements. We are constantly updating our products therefore technical data and specifications may change at any time without notice. 03/2010

Method of Application:

No special precautions are required.  Follow regular maintenance instructions as provided with original equipment.  Although the RPL-K gear oils are formulated to be compatible with conventional oils, it is discouraged in particular due to the potential adverse effect on the additives such as competition, dilution, and a number of other factors.  it is recommended to thoroughly drain and clean systems prior to switching over. 

The proper type of grade of gear oil is important to the performance and life of a gear set. Selection of the correct lubricant viscosity is based on speed, load, operating temperatures and gear geometry.

All RPL-K gear oils meet or exceed the performance requirements of US Steel 224 and AGMA 250.04 and AGMA 251.02 specifications for industrial gear oil.

Available Container Sizes:

Size Metric US Imperial
Gallon 3.79 L / 3.4 kg 1gal / 7.5 lbs
Pail 18.93 L / 16 kg 5 gal / 35 lbs
Keg 56.78 L / 54 kg 15 gal / 120 lbs
Drum 208.20 L / 181 kg 55 gal / 400 lbs
* NB: Sizes and weights are approximate.

 




 

Did you know?

Selecting the correct gear oil for your application can be extremely challenging and confusing.  There is a very broad range of products and price ranges in the marketplace. 

So how do you know which is the right one?  The answer is: it depends on your specific application.

Factors including temperature, load, contaminants,  lube intervals, speed, food grade requirements, and the operating environment usually set the stage for the type of gear oil protection you need.

Contact us to help you match the correct product , at the appropriate price range, for your specific application.

 

Material Safety
Data Sheets
 

RPL-K-Series
 

 
 

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Davley Darmex Precision Lubricants, 2010