1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8512 FAX: (724) 776-0243TO PLACE A DOCUMENT
3、 ORDER; (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS http:/www.sae.orgCopyright 1995 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001RECOMMENDEDPRACTICESubmitted for recognition as an American National Sta
4、ndardJ1751ISSUEDDEC95Issued 1995-12LUBRICATION COMPONENTS AND SYSTEMS USED ON MACHINE TOOLSAND EQUIPMENT FOR THE AUTOMOTIVE INDUSTRYForewordThis Document has not changed other than to put it into the new SAE Technical Standards BoardFormat.The automotive industry, machine tool suppliers, and lubrica
5、tion component suppliers are pursuing commonspecifications to improve the reliability and performance of lubrication systems and machines. The recommendedpractices contained within this document represent a consensus of automotive users, machine tool suppliers,lubrication component and system manufa
6、cturers, and suppliers.Deviations from those parts of these recommended practices included in contractual agreements shall be agreedto in writing by the purchaser and supplier.Design enhancements which improve equipment reliability, maintainability, and machine performance areencouraged.Recommendati
7、ons which contain the verb “shall“ are good engineering practices widely applicable with rareexceptions. Use of the word “should“ in the document is not an indication of choice but an indication that thedesirable engineering practices described may have to be modified due to peculiarities of certain
8、 processes,environmental conditions, or equipment size.Use of this document assists:a. In establishing safety requirements and safe practicesb. A purchaser in producing a specification for lubrication equipmentc. A purchaser in establishing the relative merits of similar lubrication equipmentd. A su
9、pplier in producing acceptable lubrication equipment of either his design or at the request of acustomere. Reliabilityf. Maintainabilityg. Designs and installations in accordance with the recommendations of the lubrication equipmentmanufacturerSAE J1751 Issued DEC95-2-Lubrication is required due to
10、tribological considerations. Tribologists have determined the rationale for thelubrication of machine parts by using lubricant metered in predetermined amounts to separate the surfaces whichhave relative motion to each other (slides, ways, gear clusters, spindles, etc).a. Lubrication may serve other
11、 than tribological needs, like purging of contaminants.The application of lubrication systems to industrial equipment requires an understanding and communicationbetween supplier and purchaser.When lubrication is absent or incorrectly applied, the machine may fail and/or the quality of the parts bein
12、gproduced may be affected.The lubrication system shall be designed and installed in accordance with the recommendations of the lubricationequipment supplier. All slides, ways, bearings, and wear surfaces should be lubricated as recommended by themachine manufacturer.TABLE OF CONTENTS1. Scope32. Refe
13、rences32.1 Applicable Publications . 32.2 Other Publications.43. Definitions 54. General Requirements 74.1 Safety74.2 Lubricants .74.3 Specification Requirements 114.4 Presentation of Technical Data .124.5 Identification135. Piping Systems .145.1 Piping146. Centralized Lubrication Systems 196.1 Auto
14、matic Lubrication Systems.196.2 Manual Lubrication Systems.196.3 Control Systems .196.4 Reservoirs, Total Loss Oil Systems 206.5 Reservoirs, Total Loss Grease Systems .206.6 Reservoirs, Circulating Oil Systems216.7 Lubrication Pumps 216.8 Filtration 217. Arrangements .218. System Types228.1 Single L
15、ine Parallel Systems 228.2 Piston Distributor Specific Requirements for Single Line Parallel System238.3 Injector Specific Requirements for Single Parallel Systems .238.4 Restrictor Specific Requirements for Single Line Parallel Systems 248.5 Oil Mist Reclassifier Systems24SAE J1751 Issued DEC95-3-8
16、.6 Single Line Series Progressive Systems 278.7 Dual Line Parallel Systems .288.8 Pump to Point Systems.298.9 Hydrostatic Oil Systems308.10 Circulating Oil Systems.319. Supplementary Equipment .319.1 Individual Points319.2 Lubrication Failure Economical Considerations329.3 Gear Boxes, Speed Reducers
17、, and Support Equipment 329.4 Pillow Block Bearings329.5 Rotating Chucks329.6 Seals, Gaskets, O-Rings.3210. Special Applications3210.1 Lubrication of Spindlesand Multiple Spindle Drill Heads 3210.2 Box Style Spindles (DN Values 250,000 To 800,000).3210.3 Ultra High-speed Box Style Spindles (DN Value
18、s 800,000).3210.4 Multiple Spindle Drill Heads3210.5 Air/oil Arrangements .3210.6 Conveyor Lubrication 3511. Equipment Run-Off and Start-Up at Purchaser Facility 37Appendix A Lubrication System Quality Control Check List.381. ScopeThese recommended practices are applicable for lubrication components
19、 and systems supplied onmachines and equipment used in the automotive industry; for the purpose of this document, any equipmentdispensing lubricant used in manufacturing and/or assembly processes.These practices do not apply to injection of pneumatic components.2. References2.1 Applicable Publicatio
20、nsThe following publications form a part of the specification to the extent specifiedherein. Unless otherwise indicated the latest revision of SAE publications shall apply.2.1.1 SAE PUBLICATIONSAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.SAE J517Hose, HydraulicSAE J524Seaml
21、ess Low Carbon Steel Tubing Annealed for Bending and FlaringSAE J525Welded and Cold Drawn Low Carbon Steel Tubing Annealed for Bending and FlaringSAE J1065Pressure Ratings for Hydraulic Tubing and FittingsSAE J1689Hydraulic Power Units Used on Machine Tools and Equipment for the Automotive IndustryS
22、AE J2066Filter and Filter Element for Hydraulic System(s) Used on Manufacturing and AssemblyEquipment2.1.2 AAMA PUBLICATIONAAMA 502Designation of lubricants and marking of lubricant containers, equipment and lubricatingpointsSAE J1751 Issued DEC95-4-2.1.3 ANSI PUBLICATIONSAvailable from ANSI, 11 Wes
23、t 42nd Street, New York, NY 10036-8002.ANSI B93.2Glossary - Fluid Power Systems and ProductsANSI/IEEE 268American National Standard for Metric PracticeANSI/T2.24.1 (NFPA/JIC)Hydraulic Fluid PowerSystems Standard for Stationary Industrial MachineryANSI/SAE J534Lubrication Fittings2.1.4 ISO PUBLICATIO
24、NSAvailable from ANSI, 11 West 42nd Street, New York, NY 10036-8002.ISO 1000SI units and recommendations for the use of their multiples and of certain other unitsISO 1436Rubber hoses and hose assembliesWire reinforced hydraulic type-SpecificationISO 3448Industrial liquid lubricants - ISO viscosity c
25、lassificationISO TR3498Lubricants, industrial oils and related products (class L)Recommendations for the choiceof lubricants for machine toolsISO 3862Rubber hoses and hose assembliesRubber covered, spiral wire reinforced, hydraulic typeISO 3949Plastic hoses and hose assembliesThermoplastics, textile
26、 reinforced, hydraulic typeISO 4406Hydraulic fluid power - Fluids - Method for coding level of contamination by solid particlesISO 4413Hydraulic fluid powerGeneral rules for the application of equipment to transmission andcontrol systemsISO 5169Machine toolsPresentation of lubrication instructionsIS
27、O 5170Machine toolsLubrication systemsISO 5598Fluid power systems and componentsVocabulary.ISO 6149-1Connections for fluid power and general usePorts and stud ends with ISO 261 threads andO-ring sealingPart 1.ISO 6743Lubricants, industrial oils and related products (class L)Classification.ISO 10763H
28、ydraulic fluid powerPlain-end seamless and welded precision steel tubesDimensionsand nominal working pressuresISO 12151Connections for hydraulic fluid power and general useHose fittingsISO R369Symbols for indications appearing on machine tools2.1.5 NFPA PUBLICATIONAvailable from National Fluid Power
29、 Association, 3333 North Mayfair Road, Milwaukee,WI 53222-3219.NFPA/T2.24.2Hydraulic fluid power systems - Methods to improve sealing reliability2.2 Other PublicationsGeneral Motors CorporationBasic Lubrication Standard LS1 for Industrial Equipment and Machine ToolsGeneral Motors Powertrain Lubricat
30、ion Specifications Supplement - Revision 1.2 - August 3, 1992Chrysler Trenton Engine Lubrication Specification # 66377Ford Motor CompanyLubrication Standard of Industrial Equipment, LX1Ford PowertrainLubrication Process PrinciplesSAE J1751 Issued DEC95-5-3. Definitions and Glossary of Terms3.1 Defin
31、itions3.1.1 The Term “EQUIPMENT“ includes single, transfer, dial and pallet machines, automation and conveyorsystems, washers, flushers, testers, dust collectors, chip drags, central coolant systems, and other processequipment and/or special machinery.3.1.2 For terms used with lubrication systems, s
32、ee Glossary.3.1.3 Units of measurement are given in both metric (ISO 1000) and inch. Conversions use ANSI/IEEE 268 MetricPractice (exception: piping - U. S. units are used for piping where they are employed for identification, ratherthan measurement).3.2 Glossary of Lubrication Terms3.2.1 AUTOMATIC
33、CONTROLSControl method that operates without human intervention.3.2.2 AUTOMATIC FEEDBACK DEVICESa. Fluid Level SwitchFor automatic sensing of fluid level by means of an electrical device. Used toprovide an electrical signal prior to the loss of lubricant reservoir supply.b. Pressure SwitchFor automa
34、tic sensing of system pressure by means of an electrical device. Whena pressure level higher or lower than design intent is encountered, the device provides the appropriatesignal to the control circuit.c. Cycle SwitchFor automatic sensing of metering device actuation by means of an electrical device
35、.d. Flow SwitchFor automatic sensing of lubricant flow by means of an electrical device. Upon a no-flowor low-flow condition, provides a signal to be used for an alarm or shutdown. Commonly used incirculating oil systems.e. Flow Divider DeviceDevices that equally divide the flow of lubricant into se
36、parate outlets and providean electrical signal as to lubricant flow.f. Temperature SwitchFor automatic sensing of lubricant temperature by means of an electrical device.Device provides a signal to indicate when lubricant temperature is not to design intent (high and/orlow). Used where temperature is
37、 critical to proper system function.3.2.3 BREATHERDevice to equalize to atmosphere, air or vapor pressures or vacuums in a container.3.2.4 CENTRAL STATIONCommon assembly of which the reservoir, pump, filter, valves and related componentsare mounted, and from which the primary dispensing of lubricant
38、 is originated.3.2.5 CENTRALIZED LUBRICATION SYSTEMSWhen all points on a machine or group of machines requiring the samelubricant are connected to a common system for application.3.2.6 CROSS PORTINGMethod used with single line series progressive systems as a means by which a measuredamount of lubric
39、ant from one metering device outlet is combined with a measured amount of lubricant froman adjacent metering device outlet. Purpose is to provide an increase in lubricant output volume beyond thecapability of a single metering valve.3.2.7 DRAIN LINEPipe which returns internal leakage fluid to the re
40、servoir.3.2.8 FAULT TIMEThe length of time counted by an automatic control that has been determined to exceed thetime required to complete a cycle. If this time setting is reached, the control displays that a fault has occurredand some operator warning.SAE J1751 Issued DEC95-6-3.2.9 FILL OPENINGSOpe
41、nings leading into tanks, reservoirs, gear boxes, etc., through which the lubricant can bepoured.3.2.10 FILM THICKNESSThe depth of the lubricant on the bearing. It is a factor of load between the bearingsurfaces and the load carrying properties of the lubricant, of which viscosity or stiffness, and
42、molecularbonds are factors.3.2.11 GEAR BOXAn enclosed unit whose primary purpose is to transmit mechanical power. It normally consistsof a gear train, bearings, shafts, and other allied parts in a housing.3.2.12 HIGH PRESSURE FAULTA system failure and/or control signal produced from operating pressu
43、re exceedingthe design limit of the system where pressure is higher than necessary for proper operation.3.2.13 LUBRICATING GREASESLubricating greases are refined petroleum oils with thickeners and soaps added.Frequently the soaps used to form greases have a metallic base like lithium and calcium. Wh
44、en theseadditives are used, the grease is referred to as lithium base grease or calcium base grease. Common terms:a. DROP POINTThe temperature at which a grease releases its thickened consistency and reverts tooil.b. GRADEA measure of the thickness (consistency) of the grease. The grades are establi
45、shed by theNational Lubrication Grease Institute (NLGI) and represent worked penetration values from grade 000(fluid grease) to grade 6 (extremely thick). Most industrial applications use greases from 000 to 2.c. WORKED PENETRATIONGenerally refers to the consistency of the grease after it has beench
46、urned (worked) for a length of time.3.2.14 LUBRICATING OILSLubricating oils are generally refined petroleum oils with specific additives blended intothem to create properties and characteristics to best fit a particular application. Terms used for somecommon oil properties:a. EXTREME PRESSURE (EP)A
47、measure of the film strength qualities of the oil. More commonlyused with gear lubricants but may also be useful in the lubricants for heavily loaded bearings.b. FLASH POINTThe lowest temperature at which an oil will ignite when exposed to a flame.c. POUR POINTThe lowest temperature that an oil will
48、 still flow.d. STICK-SLIPMeasures the ability of a lubricant to prevent jerky or erratic movement of the machinetable or slide even when it is moving at extremely slow speeds.e. VISCOSITYA measure of the fluidity, frequently referred to as the “resistance to flow,“ of lubricatingoils when tested und
49、er specific conditions of temperature and pressure.f. VISCOSITY INDEXA measure of a lubricants change in viscosity relative to the change intemperature.3.2.15 LUBRICATION FREQUENCYHow often the lubrication system needs to cycle for proper lubrication of themachine/equipment. Normally expressed in minutes between cycles or number of cycles/hour.3.2.16 LUBRICATION POINTConnection or drip point where lubricant is to be dispensed and which leads to thebearing surface.SAE J1751 Issued DEC95-7-3.2.17 METERING DEVICE
