. How to make grease: The process to make anhydrous calcium soap grease. . . . . . . Likewise, when greases are mixed where the base oil viscosities are significantly different, the resulting mixture will not be optimized for the application. + = Compatible = Test required - = Incompatible . . . . . . . . . . . There are three typical grease thickeners used in grease lubricants, including: . . . Taking these precautionary measures to prevent the introduction of contaminants into the bearing will help ensure the proper operation of the bearing and performance to and beyond the rated life of the bearing. Do not overgrease a system. . The values measured include the yield stress, which can predict the hardening or softening the grease may undergo; the oscillation stress, which can give insight into the likelihood of oil separation and other effects; and recoverable compliance, which can help to identify those mixtures that might experience channeling or tunneling in the equipment housing. . . . . . . . . . . Two greases are considered incompatible when these properties or performance criteria are substantially inferior to both of the unmixed, constituent grease. Grease compatibility is a straight forward concept when armed with the correct knowledge. . Lithium Complex Grease vs. Shear-Stable Polyurea Grease The grease fitting also merits inspection for contaminants and should also be wiped clean. How to Determine Grease Compatibility and Why It's Important Grease No. . . . . . I=Incompatible, C=Compatible, and B=Borderline. . . . . Consistent lubrication frequency, without over- lubricating, also promotes a smooth transition. . Many mixtures will initially soften, often to the point of migration through seals or away from lubricated surfaces. . . Technological advances have made grease compatibility a much more complicated proposition with the wide and complex array of thickeners used. . . . TOYO GREASE recommends that all grease be removed from the application prior to changing greases. Simple soaps are the most . . . . . . . . . . Non-soaps are split into two main categories. . . Also, while lithium thickener remains the most prolific, a greater variety of other thickeners are becoming available due to lithium demands for batteries. . . If you are a human seeing this field, please leave it empty. . . A number of organizations rely on compatibility charts to make important maintenance decisions. . . . The thickener defines the type of grease (see Fig. . . How to use a Grease Gun . . In practice this rarely happens due to the amount of extra work it takes. . . . B = Borderline C = Compatible I = Incompatible . . . . Why is Oil Testing Important for New Oil? . . For the best experience on our site, be sure to turn on Javascript in your browser. Cost and Other Considerations When purchasing a grease, a basic lithium grease will be cheaper than a sophisticated polyurea grease. . . . . . . . . . . . . The resulting grease carries unknown performance characteristics (load, temperature stability, shear, etc. . . . . Common non-soap thickeners include polyurea, organophilic clay, fumed silica, fluoropolymers, and others. . . . New bearings, gears, motors, etc., often come supplied with a product that is incompatible with the grease being used to relubricate. Somehow, though, these critical parameters are overlooked when utilizing grease compatibility charts. Wide service-temperature range (-45C to 180C; for short periods up to 200C) Suitable for very high rotational speeds (DN value 750,000) Good oxidation . . . The grease is also evaluated by elemental spectroscopy to assess unexpected final ratios of additives as compared to the anticipated averaging of values seen in the original products, adjusting for mixing ratios. . Greases are considered to be compatible if the following conditions are met: Problems associated with grease compatibility can be minimized by specifying greases with similar thickening profiles, and by making sure that new greases are appropriate for the operating environment. . The Ultimate Guide To Grease Thickeners [Thickening Agents] Lubricant Contamination Control Helps Prevent Varnish Formation in Machine Shops . . 3. . . . Grease compatibility is often confusing to grease users, even though most grease manufacturers produce compatibility charts. . . . . . Compatible Greases & Grease Conversion | ExxonMobil Aviation Performance Benefits. . . . . . . . Goodbye, Tramp Oil Tramp Oil Contamination Is Not Inevitable Black cells indicate compatibility testing not performed. . 3.3. . . . . . How to Determine Grease Compatibility and Why It's Important . . High load-carrying capacity. Sometimes, though, conditions dictate a change from one lubricant to another. . Conventional Oil Can Add or Subtract From Your Bottom Line It is understood that when oils are mixed, any incompatibility in the additive packages will result in poor performance and often additive reactions creating deposits. Whether two different greases are compatible will depends mostly on the compatibility of the thickener used in the two products (although base oil compatibility can also be a consideration). How Can Oil Leak Dye Pinpoint Leaks . . . lithium 12 hydroxy. . . . Soaps can be grease thickeners, while non-soap thickeners include polyurea, organophilic clays (e.g., bentonite) and other materials. . Standard Practice for Evaluating Compatibility of Binary Mixtures of . PDF Grease Appearance: Does the Color of Grease Matter, and What Does Oil . Compatibility of grease mixtures is typically categorized as follows: . 1) SKF high performance, high temperature bearing grease LGHP 2 is not a common polyurea type grease. . . . . . Use Fewer Lubricants, and Save Costs? . . . . . Lithium and lithium complex bases are the most . . . . . . This document details the procedure for evaluating the basic compatibility of greases, which is determined by measuring the dropping point, the mechanical stability and the change in consistency of the mixture upon heating. . . Mixing of greases with incompatible thickeners can result in the most immediate and obvious changes that interfere with effective lubrication. . . . . . . . . grease. . . 2. . . . . . . About the Author . . . The compatibility of greases is most often related to the thickener type. Once two greases are determined to be compatible in the above three areas, further testing to determine the impact on other performance parameters of the products may be warranted. . . . . Compatibility between greases is based on three factors: thickener type, base oil, and additives. . . Particulates in Cutting Fluid -- A Fine Mess. . Greases are not created equal - there are dozens of options to choose from, each type is designed to work better in a specific application. . . . The two components of a lubricant are the base oil and additives; a grease adds one more component - the thickener. . Ongoing process maintenance with continuous monitoring by the supplier is also a strategy that will help insure success. Understanding Grease Technology and Applications - Valvoline This is because the charts from the various manufacturers often disagree with one another on certain thickener-type combinations. . . The maximum usable temperature is 177 C. Non-Soap Grease Thickeners | Nye Lubricants . . . . . Lucas Xtra Heavy Duty Grease vs Red n Tacky 2022 However, these charts rarely tell the whole story, even just in terms of the thickener compatibility. . . Even when all plant personnel are given clear guidance on using the correct products, equipment may be returned to the facility with a grease that is different than what will be added while in service. . . . 3.3.2. . . . . . . If corrective action is not taken quickly enough, this can result in damage to the machine. The change in consistency of the mixture following elevated temperature storage is within the range of the change in consistency of the individual greases following elevated temperature storage. . . 3.2.3. . . . . . . . . . This test stand consists of the end bell from a 60-horsepower electric motor mounted with a ball bearing in a stub shaft. . Grease - What kind? | StromTrooper . . . . . . . . . . The reason being, some polyurea thickeners are completely compatible with lithium and lithium complex thickeners, while others are incompatible. Coolant Sump Odor; What to Do . . Figure 1. . . . . . . . . . NLGI 2 is about the consistency of peanut butter.. Mineral-oil-based grease, derived from petroleum, is usually more economical than synthetic-oil-based grease. . . . . . . . . Greases with same thickener type . . Grease, however, may be more difficult to purge. sbm/sbm guangdong mineral selecting thickener.md at master - sbm Table 2. . . . Coolant Concentration . . . . . Polyurea Greases - Applications and Properties . . Incompatible Greases Could Lead to Costly Repairs - DTN Progressive Farmer Forgive my grease illiteracy. . 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