bearing lubrication chart

BEVT Elite Pro II and Pro Machine Oiling and Lubrication Chart for 'ZQ' Sewing Head This reference chart applies to the 15 needle Elite Pro single-head machine. PDF Guide to Proper Bearing Lubrication Procedures Skf Bearing Grease Chart and Similar Products and Services ... PDF Hubs, Drums & Bearings - Dexter Parts Lubrication Guide Use a No. The longer interval saves manpower required for relubrication activities. Get your bearings: Electric motor lubrication 101 ... Bearing Steel Material - SAE 52100 quality AISI-52100. Therefore, a lubricating system should be selected that best suits the lubrication requirements. The purpose of lubricating the bearing is to cover the rolling contact surfaces and sliding contact surfaces with a thin oil film to avoid direct metal-to-metal contact. Hubs/Drums/Bearings Replacement Chart.-49-Bearing Lubrication - Grease CAUTION Do not mix Lithium, calcium, sodium or barium complex greases due to possible compatibility problems. Reliabilityweb Determining Grease Lubrication Intervals ... Whenever changing oil in the drive, grease the bearings and purge the seals with one of the NLGI #2 greases listed in Table 6. BEARINGS DIRECT: Bearing Grease Chart. The resulting answer is the grease quantity in ounces. Reference Speed Factor: Grease Lubrication Selecting a suitable grease for high precision bearings is based on the max operating speed and temperature. 2) for ball bearings, spherical roller bearings, tapered roller bearings and CARB bearings rotational speed up to 210 000 and for cylindrical roller bearings rotational speed up to 270.000. Place the bearing on the sleeve. Guide to Electric Motor Bearing Lubrication This will help to insure maximum protection and component life. The second mistake we must avoid is adding too much, or not enough grease. For more assistance, download the 18 page illustrated Elite Pro II and Pro Machine Oiling and Lubrication Guide. Effective lubrication of the rolling-element bearing has the following effects. SKF lubricant selection. Speed General purpose industrial and automotive Automotive wheel bearings Conveyors and fans Small electric motors -30 °C (-20 °F) 120 °C (250 °F) M M General purpose industrial and automotive Bearings with d>100 mm Bearing Tolerances & Precision Class. . • Filling approximately 30% of the free space in the bearing. Tribology is the study and application of the principles of friction, lubrication, and wear between two surfaces in relative motion. The standard quantity of oil varies with bearing size, but is approximately one drop (3-6 mg) per bearing up to R-2 size and two drops (6-12 mg) for larger sizes. The differences will be in viscosity, overall temperature usage range, chemical compatibilities, chemical resistances, and maintenance cycle and bearing life requirements. The most important task of the lubricant is to separate parts moving relative to one another (balls or rollers and raceways) in order to minimize friction and prevent wear. They are also used in the rocker shaft of rocker-arm valve train systems. The reference speed factor n * dm calculates the operating rotational speed from the center line of the bearing ball diameter and indicates the max speed capacity of the lubricant being specified. SKF bearing grease selection chart - SKF Maintenance . In linear bearing systems, those two surfaces are the bearing element and the guide raceway. Understanding proper bearing lubrication procedures is critical to ensuring long-term, trouble-free performance. Bearing Lubrication The proper lubrication of electric motor bearings is essential to maintaining them in peak operating condition and, ultimately, in reducing unnecessary downtime. 3) C/P = load ratio, where C = basic dynamic load rating, kN , and P = equivalent dynamic bearing load, kN. The main reasons to choose grease are: cost-effectiveness 2 Lithium complex base grease or . Shelf life of the grease-lubricated bearing/component represents the period of time prior to use or installation. Lubrication Guidelines This bearing is factory lubricated with a lithium or lithium complex base grease which is suitable for most applications. Solid oil bearings are lubricated for life and do not require lubrication. Chart 6503 LUBRICATION CHART 10 10 13 13 FOR 16" & 16-24 ' LATHES AND . Bearing & Seal Greases Some gear drives have one or more grease lubricated bearings and grease purged seals. This bulletin, for ExxonMobil customers, is intended to serve as a practical guide to the proper lubrication of electric motor bearings utilizing grease as a lubricant. The formula is as follows: Re-lubrication Amount of Grease (g) = 0.005 * Bearing Outside Diameter (m. Lubrication Tie Rod End 81 King Pin Bushings 82 Ball Studs on the Steering Arm and the Tie Rod Arm Ends 83 Grease-Lubricated Wheel Bearings Oil-Lubricated Wheel Bearings 84 Check and Adjust Steering Arm Bolts Tighten Draw Key Nuts 85 Lubrication Intervals and Specifications 88 Lubricant Troubleshooting 90 Section 7: Brakes Cam Brakes Technical . venting the applied grease from wetting the bearing balls and races properly. All the limits shown are based on static oil lubrication, with the oil level set at the center of the bottom most ball or roller when standing still. In most cases, grease is the appropriate choice for open bearings. Manufacturer. The basic bearing grease selection chart provides you with quick suggestions on the most commonly used greases in typical applications. Thickening Agent/Lubricant Base. Descriptions of various types of journal bearings are presented. An example is grease used in a cold climate or a chiller room may have a slower reaction rate ascompared to a high temperature application. The following tables are a guide for establishing shaft and bearing fits for miniature and instrument bearings, when the expansion coefficients of the shaft and housing are similar or when the operating temperature differential between them is nominal. ELEMENT BEARING GREASE LUBRICATION Bearing manufacturers have provided a significant amount of detailed advice and simple methods for estimating lubri-cant type, volume and frequency to match machine oper-ating components and conditions. distribute lubricants with temperatures below 30˜F(-1˜C). It also transfers heat from the bearing and even helps protect the bearing from dirt and contaminants. . Lubricating your bearings is good; lubricating them effectively is better! to reduce friction and wear in the bearing. Please, use our online bearing selection tool, SKF Bearing Select, which has a fully updated, clean and user-friendly interface. That concern is heightened by the trend to run industrial equipment at higher speeds than originally intended, further increasing bearing temperatures. They recommend removing, flushing, and re-lubricating their driver bearings every 1,000 hours of operation. Working temperature range °C. In order to use these charts, the 'geometry factor' for the bearing in question must be found from the tables opposite and on page f bearing grease consumption rate cm 3/h V L total grease volume in bearing m 3 w power loss W α thermal expansion coefficient m/m • °K ε eccentricity ratio - ε T transition eccentricity ratio - η dynamic fluid viscosity Pa • s η eff effective viscosity at θ eff Pa • s Λ bearing loading factor - ν kinematic fluid viscosity m2/s θ If grease lubrication is desired, then the speed limit is 66% of the oil limit. The equivalent load at the bearing is determined from the radial and axial loads along with relationships detailed in the manufacturer's catalog for each bearing. For grease lubricated bearings: • Regular lithium soap grease with mineral base oil having a viscosity of 100 to 200 mm2/s at 104° F (40° C) (e.g. SKF Bearing Select has been designed in alignment with the Bearing Selection Process. These charts help the user calculate a specific bearing's free space based on the Fig. • Open the bearing housing • Remove all old grease with the spatula, dry cloths and cleaning agents • Using the pump, fill the empty space in the bearing according with lubrication routine • Using the pump, fill the bearing housing according with lubrication routine1 Mistake 2 - Over and under Lubrication. 10. The bearing interchange guide from AST Bearings outlines the bearing series part numbers and corresponding part numbers for the five most high demand ball bearing series. In the absence of a Lubrication Chart, the process of lubrication is highly inconvenient and troublesome. The object with element bearing lubrication is to place, and then replace, the grease A grease with GPF=2 would give a grease life L 10 ≈3,000 hours. 1. 6000 Series. Knowing the bearing number or dimensions generalizations can be made and a rough quantity of grease can be determined. P roper lubrication of ball and roller bearings in electric motors is essential to their health. Rolling Bearings The lubrication of rolling bearings - similar to that of sliding bearings - main-ly serves one purpose: to avoid or at least reduce metal-to-metal contact between the rolling and sliding contact surfaces, i.e. A flow chart to help select the correct lubrication method is shown as follows: Process for selecting a suitable lubrication method for open SKF bearings. The result will be grease quantity in grams. This article goes on to break down these considerations further into the following categories: Grease lubrication frequency and quantity for ball and roller (rolling element) bearings. The following information was derived from a common manufacturer's maintenance manual, and addresses lubrication of bearings on their low profile conveyors. Journal bearings are one of the most common types of hydrodynamic bearings. For nonstandard lubricants, please consult the factory to select an appropriate type. 3 LGFP 2 LGET 2 LGHP 2 LGLT 2 LGGB 2 LGEP 2 LGMT 2 Bearing operating parameters Speed for ball bearings EH = Extremely high n d m over 700 000 The obvious and only practical location for introducing lubricant to the bearing is in a region of low pressure. AMOUNT: To find ounces, [ (OD in inches) x (width in inches) x 0.114]. 6200 Series. Drop Pt. One way of determining the quantity of grease comes from the bearing suppliers. Raised metal around the dents that act as surface-stress risers cause premature spalling and reduced bearing life. Bearings Clearance Catalog. lightly oiled and placed over the bearing. In summary, proper bearing lubrication is the primary concern in all high-temperature applications. Those listed in this section make up the most commonly identified causes of damage for anti-friction bearings, including cylindrical, spherical, tapered and ball designs. It is impossible to accurately predict design life due to variations in lubricant bleed rates, oil migration, operating 2015 The Timken Company TIMKEN BEARING DAMAGE ANALSIS WITH LUBRICATION REFERENCE GUIDE 7 Types of Bearing Damage Many different operating conditions can cause bearing damage. The bearing now has to work much harder to push the rolling elements through a mud bog of grease. Wipe a thin film near In most cases, grease is the appropriate choice for open bearings. When establishing a relubrication schedule, note that a small amount of grease at frequent intervals is preferable to a large amount at infrequent intervals. October 17, 2018 By Danielle Collins 1 Comment. LubeCoach is an innovative and easy to use device that can help with machine lubrication calculation by assigning the correct volume and frequency to grease lubricated element bearings. Tribology basics for linear bearings. Calculation results can be obtained fast and are presented directly near the required input data. Ball Bearings If Motor Has Grease Fittings Use Ball ing Grease Every 2 Years Feed Screw TYPE OIL "C" Oil Daily Sleeve Bearings TYPE OIL "A" Oil Monthly Collet Att. A section on do's and don'ts gives practical information. Note: - For areas with relatively high ambient temperatures, use LGMT 3 instead of LGMT 2 - For special operating conditions, refer to the SKF bearing grease selection chart With additional information like speed, temperature, and load conditions, LubeSelect for SKF greases is the easiest way to select the . remove grease fitting to permit excess grease to escape. Grease Name. With grease lubrication, the contacts may operate in a severely starved condition because of the poor bleeding capability of the grease leading to poor lubrication and possible reduction of life [7]. 1) to establish and maintain an efficient film of lubricant between the bearing moving surfaces and 2) to provide adequate bearing cooling. The ability of bearings to operate at high speed is further established by the type of lubrication employed. Screw the nut with its chamfered face toward the bearing, but do not mount the lockwasher. 6300 Series. 80% of grease lubricated bearings fail to achieve minimum life-cycle levels due to issues with . Reference Speed Factor: Grease Lubrication Selecting a suitable grease for high precision bearings is based on the max operating speed and temperature. However, extra protection is necessary if the bearing is subjected to excessive moisture, dust, corrosive vapor or other harsh environments. Because the majority of grease-lubricated applications are element bearings, one should consider viscosity selection for those applications. Relubrication intervals of grease depend on the type, dimensions, and speed of the bearing, and the type of grease. SKF basic bearing grease selection chart Includes Models BEVT-Z1501CBII, BEVT-Z1501CB, BEDT-ZQ-501. With oil lubrication, use a sealing compound such as Permatex 2 or equivalent at the split sur-faces; apply sparingly. Preview: Journal Bearing Hydrodynamic Lubrication Analysis Equation and Calculator Oil, adhering to the surfaces of the parts in rolling contact, is fed . The typical mineral oil viscosity in an electric motor grease is in the range of 500 to 600 SUS at 100°F. The shelf life is a portion of the anticipated aggregate design life. 1) to establish and maintain an efficient film of lubricant between the bearing moving surfaces and 2) to provide adequate bearing cooling. This formula can be used with metric measurements as well; just use 0.005 instead of 0.114. TYPE OIL "C" Keep Full Micrometer The general rule is to provide the minimum viscosity required at the expected operating . Oil lubrication frequency and level (relates to quantity) for ball and roller bearings. In close cooperation with customers, Klüber Lubrication develops rolling bearing lubricants - mostly greases - that are specifically tuned to the application at hand. Load factor is a determinant of lubrication replenishment in that it corresponds to the equivalent load (P) on the bearing shown in chart (3) of Fig. The obvious and only practical location for introducing lubricant to the bearing is in a region of low pressure. lubricants: Extremely high viscosity with solid lubricants: Low temperature, extremely high speed: Temperature range-20/110 °C-4/230 °F-40/140 °C-40/284 °F-20/120 °C-4/250 °F: 10/120 °C 14/250 °F: 50/110 °C 58/230 °F: Thickener/ base oil: Aluminium complex/medical white oil: Complex calcium sulphonate / PAO: Lithium-calcium/ mineral . A flow chart to help select the correct lubrication method is shown as follows: Process for selecting a suitable lubrication method for open SKF bearings. In these cases, the bearing should contain as much grease as . applies for the viscosity of the oil if oil lubrication is used. volume in a bearing, friction loss, and bearing temperature. The standard quantity of grease is 25-35% of the bearing's internal free volume. This bulletin, for Applied thermal fluids customers, is intended to serve as a practical guide to the proper lubrication of electric motor bearings utilizing grease as a lubricant. Chart B. vi. A key metric in a long precision bearing life with grease lubrication is the initial set up. lubrication, through the bearing and eventually bruise (dent) the surfaces. While most would not use an EP 220 gear oil for an oil-lubricated electric motor bearing, many people will use a grease containing that same oil for an identical grease-lubricated bearing. A high-speed bearing may be very sensitive to slight incompatibility as compared to a low speed bearing. Your electric motor builder may provide a specific recommendation. The importance of proper lubrication and cleanliness is self-evident in the determination of bearing life. (If no lubricant specification is given by the user then Dynaroll bearings are normally supplied with AF2 lubricant, above.) Conversion Chart Showing Millimeter, Fractional and Decimal Inch Sizes . The bearing has been greased at the factory and is ready to run. A properly greased ball bearing can have a successful application life of years. Lubrication selection flow chart and criteria. The choice depends on the operating conditions of your bearings: load, speed, temperature, humidity, presence of water, vibration Self-aligning thrust roller bearings 30 3.5 Relubrication In grease lubrication, the lubricating characteristic of grease deteriorates with operating hours, thus requiring relubrication of the bearing at appropriate intervals. Lubricate with a multipurpose roller bearing NLGI Grade 1 or 2 grease having rust inhibitors, antioxidant additives, and . The EPRI NP7502 approach tends to add larger quantity of grease at longer intervals, as compared to most bearing manufacture's recommendations. Start at the bottom by choosing your speed; follow the line straight up until you meet the curve that matches your bearing O.D., then go straight left to see the relubrication interval for your bearing type. In a shielded 6302-2Z deep groove ball bearing operating at 15,000 rpm (A=428,000), at C/P=8 and 90 °C, the L 10 is estimated at 1,500 hours for a grease with GPF=1 (including a correction factor of 0.5 for the load ( table 2). The reference speed factor n * dm calculates the operating rotational speed from the center line of the bearing ball diameter and indicates the max speed capacity of the lubricant being specified. Lubrication, whether it is through the use of oils or grease, plays a vital role in the performance and life of rolling element bearings. Each method has unique advantages. 6700 Series. The main reasons to choose grease are: cost-effectiveness for low torque), then a MIL-L-6085C oil lubricant is an industry standard. Preview: Journal Bearing Hydrodynamic Lubrication Analysis Equation and Calculator Common Grease Brand and Efficiency Chart. ELEMENT BEARING GREASE LUBRICATION Bearing manufacturers have provided a significant amount of detailed advice and simple methods for estimating lubri-cant type, volume and frequency to match machine oper-ating components and conditions. The reference speed will be reached after 10 to 20 hours running time. They include cross reference for the R Series 52100 chrome steel, stainless steel instrument series, flanged miniature series inch, miniature series inch and the metric . The grease should also have minimum base oil viscosity of 500 SUS at 100° F and be suitable to operate continuously at 225° F. Do not use a heavy, long fibered grease. Ball bearing size charts are widely available, and can be used to find the measurements of a specific bearing. Bearing Fit Chart - Shaft and Housing. Guide to Electric Motor Bearing Lubrication. But if these lubricants are not applied in the proper manner, their affect is greatly reduced and could lead to the bearing failing prematurely. Note: - For areas with relatively high ambient temperatures, use LGMT 3 instead of LGMT 2 - For special operating conditions, refer to the SKF bearing grease selection chart With additional information like speed, temperature, and load conditions, LubeSelect for SKF greases is the easiest way to select the right grease. Too much grease builds pressure, pushing the rolling elements through the fluid film and against the outer race. °C: MIL . bearing free space reference charts. new pdf.directindustry.com. This paper covers the basic aspects of journal bearings including lubrication, design and application. Guidance is given for choosing the proper bearing type and keeping your bearings healthy. Note: Where grease is not suitable for a given application (e.g. The systematic indications and measures, helps to adopt a favorable lubrication for the machine at use. The proper lubrication of electric motor bearings is essential to maintaining them in peak operating condition and, ultimately, in reducing unnecessary downtime. The charts on page 3 recommended operating ranges for three common oil viscosities, for bearings under normal loading (for radial loads up to Cr/10). Check out the advice from our EXPERTS & TOOLS team on: the choice of lubricant: oil and grease lubrication both have their advantages and disadvantages. To find grams, [ (OD in mm) x (width in mm) x 0.005]. Grease: 7: Hinge joints of brake system: Spindle oil and WD-40: 8: Brake pedal shaft: Spindle oil and WD-40: 9: Universal joint of drive shaft: Grease: 10: Lever pins and end pieces of clutch/hand brake cables: Grease: 11: Pins and cams of brake shoes: Grease: 12: Wheel bearings: Grease: 13: Front forks: Spindle oil and WD-40: 14: Throttle . Series 6200 and 6300 are the most commonly used, and typically range from 10 x 30 x 9 mm (.394 x 1.181 x .354 in) to 150 x 320 x 65 mm (5.906 x 12.598 x 2.559 in). The lubrication methods available for bearings on a machine tool include grease lubrication, oil mist lubrication, air-oil lubrication, and jet lubrication. For applications that operate in the high speed range (nDm>800,000 or n/ng* >0.8), or when a spe - cialty lubricant is being used, a clean, dry surface may be critical to ensure the proper adhesion between the grease thickener matrix and the bearing surfaces. Bearing Lubrication plays a vital role in the performance and life of rolling element bearings. When changing from one type of grease to another, it is necessary to insure all the old grease has been Under Bearings with solid oil; Source SKF Solid oil lubricant, a relatively new form of dry lubrication, is a porous polymer material that is molded to the shape of the bearing and filled with oil to completely fill all free spaces in the bearing. Bearing Lubrication Operating Instructions & Parts Manual PENNBARRY 3 1401 North Plano Road, Richardson, Texas 75081 Phone: 972-234-3202 Fax: 972-497-0468 These guidelines are for usage on applications approved by FMC. 1 Revised: 09/26/2019 - Lube Specifications Chart Service Manual Lubrication selection flow chart and criteria. Lubricate with a premium quality NLGI 2 multi-purpose ball bearing grease having corrosion inhibitors, anti-oxidant additives and mechanical stability for high speed operation. If including contamination, this number rises to well above 50%. The grease quantities and the intervals should be coordinated with each other. Poor lubrication accounts for more than 36% of premature bearing failures. Lube Specifications Chart Service Manual Chapter Summary CHAPTER 1: SERVICE PRODUCTS AND LUBRICANTS CHAPTER 2: ORV LUBE CHART CHAPTER 3: SNOWMOBILE LUBE CHART CHAPTER 4: INDIAN MOTORCYCLE LUBE CHART CHAPTER 5: SLINGSHOT CHAPTER 6: VICTORY LUBE CHART. Oil, adhering to the surfaces of the parts in rolling contact, is fed . Assuming the grease contains a 100 centistoke (ISO VG 100) oil, and the bearing is operating at 50°C, one can use a commonly available viscosity/temperature chart to determine the acceptability of the operating viscosity of the product in use. SKF bearing grease selection chart Temperature range 1) Grease Description Application examples LTL HTPL Temp. LubeCoach: Machine Lubrication Calculation Calculate & Optimize, Grease Lubrication Practices at Your Fingertips. Their primary purpose is to support a rotating shaft. A chart also indicates the lubrication interval based on belt speed. These special lubricant develop - ments are based on the latest know-how in tribology, contain the highest quality raw materials and have been extensively tried and tested. This formula works for all bearings and is widely accepted as the best way to calculate grease quantity. *SVP = Saturated Vapor Pressure. In bearing lubrication, the rotating shaft inside the bearing is in the presence of oil, which generates a Bearing Radial Play Table. to reduce friction and wear in the bearing. 1) rotational speed = rotational speed, r/min x 0.5 (D+d), mm. In addition to grease incompatibility, the additives and base oil compatibility should be considered. Klüber Lubrication . ISO VG 150). Grease reduces friction and protects the surface finish from rust during long idle periods and in unfavorable environmental conditions. The Lubrication Charts enumerate the lubricant compatibility along with other intrinsic details. 270 @ 100 o F. High temperature, very low SVP*. They are used in various subsystems in engines and power trains, for example for support of both crankshaft and camshaft. Oil kinematic viscosity depends on bearing operating temperature. Rolling Bearings The lubrication of rolling bearings - similar to that of sliding bearings - main-ly serves one purpose: to avoid or at least reduce metal-to-metal contact between the rolling and sliding contact surfaces, i.e. The object with element bearing lubrication is to place, and then replace, the grease Fluid film bearings describe the bearing type that is designed to operate under the principal of building up a hydrodynamic wedge between parts in relative sliding motion. 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In unfavorable environmental conditions, above. that concern is heightened by the user then Dynaroll bearings normally! And life of years supplied with AF2 lubricant, above. low pressure Permatex 2 or equivalent at expected! Condition and, ultimately, in reducing unnecessary downtime is not suitable for a given (... Effective lubrication of the parts in rolling contact, is fed be used with metric measurements as well ; use. To adopt a favorable lubrication for the machine at use for bearings on machine... Bearings are normally supplied with AF2 lubricant, above. risers cause premature spalling and reduced bearing life on...