Sprinkler Lube

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Reinke Test Data

Testing of Sprinkler Lube 1200
From Solutions Inc.

April 7, 2003

Design Engineer: Darin Neff - Reinke Manufacturing


Sprinkler Lube 1200 is a product made to reduce leaks from damaged seals in wheel gears. Sprinkler Lube 1200 is a specially designed product for this application. This lubricant has a very viscous appearance until it is disturbed. Once it is disturbed, its viscosity lowers to that of traditional gear oil. A wheel gear can take advantage of this product because there is relatively little movement of parts near the input and output shafts of a wheel gear. Lubricant in this area will remain relatively thick. However, lubricant near the bull and worm gear is mixing causing the lubricant to resemble gear oil.


We wanted to test the lubricant to see how it performed in a wheel gear where the seals are known to leak. We were also concerned about the product’s ability to provide ample lubrication to the gear.


The first test performed reflects the product’s ability to stay in the gearbox with leaky seals. We used a wheel gear that was returned to us due to leaky seals. Leaving the original oil in the gearbox, we operated the gear under a standard load of 1500 ft*lbs of load for several hours at a percent timer setting of 90%. The amount of oil that seeped out of the input shaft seals was negligible. We removed the seals and cut them in 3 places with a utility knife. We also took a marking scribe and scored the input shaft. The scoring creates a burr that will catch on the cut seals causing the seals to be further damaged. After 20 minutes of operation at the 1500 ft*lb load, oil was and drizzling off the bottom of the gearbox. We were satisfied the seals were damaged.

Knowing the seals had failed, we removed the original oil and replaced it with Sprinkler Lube 1200. We removed the expansion chamber and saw how the lubricant flowed around the gear. The product flowed smooth and continuous and did not behave like grease. We operated the gear approximately 35 hours over a one-week time period. The loads applied to the gear were either 1500 or 2500 ft*lbs for nearly equal times. At the end of the test the total amount that leaked out of the wheel gear was less than a teaspoon.

The second test considered the product’s ability to lubricate compared to the oil that comes in a UMC wheel gear. For this test we used a new UMC Millennium wheel gear. We took a random unit out of stock and tested the original 85W-140 oil first. We recorded temperature and observations during the test. With the percent timer set at 100%, we operated the gear at 500 ft*lbs for approximately 35 minutes. Then load was increased to 2500 ft*lbs for 30 additional minutes. Finally, the load was increased to 3500 ft*lbs. The gear was left to run until the oil failed. We claim the lubricant fails when the gear begins to chatter and growl. At this point the lubricant is no longer protecting the gear surfaces. After only 68 minutes into the test, the gear began to hum intermittently. After 78 minutes the gear made a constant humming sound. I continued to let it run until a loud violent growling was heard, this occurred at 97 minutes into the test. We felt if the test continued any longer we might damage the gear tester.

The oil was drained from the gear and replaced with Sprinkler Lube 1200. The time intervals were repeated with the Sprinkler Lube 1200. 111 minutes into the test, the gear began to hum and chatter.


The ability for this product to stay in the gearbox even with damaged seals is incredible. The comparison between normal gear oil and Sprinkler Lube 1200 is amazing. We learned not only can Sprinkler Lube 1200 deal with failed seals, it is also a good lubricant. The Sprinkler Lube 1200 performed better than the oil since there was no growling until 111 minutes into the test. Growling began 68 minutes into the test with the gear oil. The temperature of the Sprinkler Lube 1200 stayed lower than the oil until the final 3500 ft*lb load setting. There are a couple of important items to consider regarding the second test. First, the gear came in from the outdoors, which is why the oil started out at 46°F in the gear oil test. The Sprinkler Lube 1200 started out at 62°F, which is what temperature the shop is kept during winter months. If you look at the trend of the two temperatures they are very similar. Thicker lubricants generally create higher temperatures. We don’t feel Sprinkler Lube 1200 behaves this way. Its low density, thixotropic property helps it compete with less viscous lubricants. Second, the product’s lubricating ability was tested in a gear that was already damaged. The 85W-140 was tested in a new gear. There was significant galling on the worm and bull gear. Sprinkler Lube 1200 still performed superior to the gear oil.


We tested Sprinkler Lube 1200 to see if it would resist leaking from damaged wheel gear seals. We found that an extremely small amount came out of a pair of damaged seals over 35 hours of testing. We were concerned how the product would compare regarding lubricating the wheel gear. In our test, we found that it surpassed the current gear oil. We were very impressed with the lubricant’s performance considering the condition of the gear.

Additional Notes

Before performing the second test, we expressed concern to Rick that our test equipment was unique and if the equipment failed during the test there may be an extended period of time while finding parts. Rick gave us 5 gallons of Gear Lube. We replaced the oil in the transmission and center drive of the gear tester. Normally when testing at higher loads, the center drive gets so warm it will burn your hand. After replacing the oil in the center drive with the Gear Lube, I can comfortably hold my hand to the gearbox without the concern of being burned. We believe the Gear Lube does a better job reducing friction between surfaces, which results in less heat. We are impressed with Solution Inc.’s Sprinkler Lube 1200 as well as their Gear Lube.

Normal Gear Oil Test
Time (min) Torque (ft lbs) Temperature (°F) Notes
0 - 35 500 ft lbs 46° at 0 min
66° at 35 min
Running normally
35 - 65 2,500 ft lbs 122° at 65 min  
65 - 68 3,500 ft lbs 132° at 68 min  
78 3,500 ft lbs 145° at 78 min Subtle humming began at 68 min
87 3,500 ft lbs 156° at 87 min Constant humming began
89 3,500 ft lbs 162° at 89 min  
97 3,500 ft lbs 176° at 97 min Loud violent growling (test discontinued to not damage test equipment)
Normal Gear Oil failed in the test after 3 minutes at 3,500 ft lbs when the humming started
Sprinkler Lube 1200 Test
Time (min) Torque (ft lbs) Temperature (°F) Notes
0 - 35 500 ft lbs 62° at 0 min
88° at 36 min
Running normally
36 - 66 2,500 ft lbs 132° at 66 min  
66 - 73 3,500 ft lbs 144° at 73 min  
77 3,500 ft lbs 150° at 77 min  
81 3,500 ft lbs 160° at 81 min  
111 3,500 ft lbs 185° at 111 min Humming began at 111 min
Sprinkler Lube 1200 failed in the test after 45 minutes at 3,500 ft lbs when the humming started.