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Lithium Complex vs Calcium Sulfonate Grease: Test Data, Cost and When to Switch
In the lithium complex vs calcium sulfonate grease choice, calcium sulfonate complex grease is worth its higher price where water, heat and heavy or shock load come together; in dry, moderate duty a lithium complex grease does the job f...
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L-CKC 220 Industrial Gear Oil: Meaning, Typical Data and Equivalents
L-CKC 220 gear oil is a medium-load, extreme-pressure industrial gear oil for enclosed gearboxes, in viscosity grade ISO VG 220. L-CKC is the Chinese class for this oil type under GB 5903, aligned with category CKC in the ISO family C c...
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Grease Dropping Point vs Operating Temperature: What the Number Really Means
A grease's dropping point is the temperature at which it becomes fluid enough to drip in a standard laboratory test; it is not the temperature the grease can work at. The ASTM test method itself states that above 200 °C the dropping poi...
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CK-4 (CK4) Diesel Engine Oil: What It Means, and How It Compares with CI-4, CJ-4 and FA-4
CK-4 (often typed "CK4") is the current API service category for heavy-duty diesel engine oil. It covers high-speed four-stroke diesel engines built to meet 2017 model year on-highway and Tier 4 non-road emission standards, and it can a...
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Heat Transfer Oil Manufacturers: 9 Thermal Fluid Brands Compared, and How to Choose
The best-known heat transfer oil manufacturers are Eastman (Therminol), Dow (DOWTHERM and SYLTHERM), Lubrizol (Paratherm), Global Heat Transfer (Globaltherm), Shell, ExxonMobil (Mobiltherm), Petro-Canada (CALFLO), Duratherm and FRAGOL, ...
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What Oil for an Air Compressor? Match the Oil to the Compressor Type
Use a non-detergent air compressor oil made for your type of compressor, in the ISO viscosity grade the manual specifies. Piston compressors take a reciprocating compressor oil (categories DAA or DAB). Oil-flooded screw and vane compres...
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Grease Selector: Match a Grease to Your Temperature, Load and Water
The grease selector below turns five answers into an NLGI grade and a short list of Zhongtian greases whose published operating range covers your conditions: where the grease goes, the coldest start-up, the hottest running temperature ...
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High Temperature Grease Selector: Find a Bearing Grease for 150 °C and Above
We treat a bearing as a high-temperature point once it runs above 150 °C. Enter the bearing's start-up and running temperature, load and water below, and the selector shows which Zhongtian high temperature grease fits and why. It is fr...
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L-DAB 46 Compressor Oil: What the Code Means and When You Need a Screw Compressor Oil Instead
L-DAB 46 is an ISO VG 46 oil for piston air compressors, not for oil-flooded screw compressors. Category: DAB, medium-duty reciprocating and drip-feed rotary vane compressors (ISO 6521-1) Viscosity: 41.4 to 50.6 mm²/s at 40 °C Screw c...
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