1、ICS 21.100.20Wlzlager Kugeln fr Wlzlager und allgemeinenIndustriebedarfIn keeping with current practice in standards published by the International Organization for Standardization(ISO), a comma has been used throughout as the decimal marker.Ref. No. DIN 5401 : 2002-08English price group 11 Sales No
2、. 011109.04DEUTSCHE NORM August 2002 No part of this translation may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e.V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Translation by DIN-Sprachendien
3、st.In case of doubt, the German-language original should be consulted as the authoritative text.Balls for rolling bearings and generalindustrial useContinued on pages 2 to 14.SupersedesDIN 5401-1 andDIN 5401-2,November 1993 editions.5401ForewordThis standard has been prepared by the Arbeitsausschuss
4、 Wlzlager (Rolling Bearings Standards Commit-tee).Ball sizes are also expressed in inches, for guidance. It should be noted, however, that the use of such unitsis prohibited under Council Directive 80/181/EEC.See Explanatory notes for connection with International Standard ISO 3290 : 2001 published
5、by the Inter-national Organization for Standardization (ISO).AmendmentsThis standard differs from DIN 5401-1 and DIN 5401-2, November 1993 editions, as follows:a) The two parts of the standard have been combined into one standard.b) Further steel grades have been specified.c) The range of ball sizes
6、 has been updated.d) Further concepts are defined.e) The standard has been editorially revised.Previous editionsDIN 5401: 1953-01,1956-04, 1959-11, 1964-01, 1978-01; DIN 5401-1: 1993-11; DIN 5401-2: 1993-11.1 ScopeThis standard specifies requirements for balls for rolling bearings and for general in
7、dustrial use. It coversballs made of full hardening steel, special steel and other metallic or non-metallic materials.Page 2DIN 5401 : 2002-082 Normative referencesThis standard incorporates, by dated or undated reference, provisions from other publications. These norma-tive references are cited at
8、the appropriate places in the text and the titles of the publications are listed below.For dated references, subsequent amendments to or revisions of any of these publications apply to thisstandard only when incorporated in it by amendment or revision. For undated references, the latest edition ofth
9、e publication referred to applies.DIN EN 10016-2 Non-alloy steel rod for drawing or cold rolling Specific requirements for general purposerodDIN EN 10088-3 Stainless steels Part 3: Technical delivery conditions for general purpose semi-finishedproducts, bars, rod and sectionsDIN EN 10263-3 Steel rod
10、, bars and wire for cold heading and cold extrusion Part 3: Technical deliveryconditions for case hardening steelsDIN EN 12163 Copper and copper alloys Rod for general purposesDIN EN 12166 Copper and copper alloys Wire for general purposesDIN EN ISO 683-17 Heat-treated steels, alloy steels and free-
11、cutting steels Part 17: Ball and roller bearingsteels (ISO 683-17 : 1999)DIN EN ISO 4288 GPS Surface texture: Profile method Rules and procedures for the assessment ofsurface texture (ISO 4288 : 1996)DIN EN ISO 6506-1 Metallic materials Brinell hardness test Part 1: Test method (ISO 6506-1 : 1999)DI
12、N EN ISO 6507-1 Metallic materials Vickers hardness test Part 1: Test method (ISO 6507-1 : 1997)DIN EN ISO 6508-1 Metallic materials Rockwell hardness test Part 1: Test method (scales A, B, C, D, E,F, G, H, K, N, T) (ISO 6508-1 : 1999)ISO 4291 : 1985 Methods for the assessment of departure from roun
13、dness Measurement of variationsin radiusISO 3290 : 2001 Rolling bearings Balls Dimensions and tolerancesCouncil Directive of 20 December 1979 on the approximation of the laws of the Member States relating to unitsof measurement, EC Official Gazette, 1980, No. L 39, pp. 4050 (80/181/EEC)3 Concepts3.1
14、 Nominal ball diameterThe diameter used to identify a ball size; designated by Dw.3.2 Single ball diameterThe distance between two parallel planes tangential to the surface of a ball; designated by Dws.3.3 Mean ball diameterThe arithmetical mean of the largest and the smallest of the single diameter
15、s of a ball; designated by Dwm.3.4 Ball diameter variationThe difference between the largest and smallest of the single diameters of a ball; designated by VDws.3.5 Deviation from spherical formThe greatest radial distance, in any equatorial plane, between the smallest circumscribed sphere and thegre
16、atest inscribed sphere, calculated using the least squares centre method; designated by tDws.NOTE: Information regarding the measurement of the deviation from spherical form is given in Annex B.3.6 LotFor the purposes of this standard, a definite quantity of balls manufactured under conditions which
17、 are pre-sumed uniform, and which is considered an entity.3.7 Lot mean diameterThe arithmetic mean of the mean diameters of the largest ball and the smallest ball in a lot (designated by DwmL)3.8 Lot diameter variationsThe difference between the mean diameter of the largest ball and the smallest bal
18、l in a lot; designated by VDwL.NOTE: This definition only applies to ball grades G3 to G200, except grade G80.3.9 Ball gauge toleranceRange within which diameter DwmLmay vary for a particular ball gauge, designated by ST.Page 3DIN 5401 : 2002-083.10 Ball diameter variation within a gaugeThe differen
19、ce between the largest and the smallest mean ball diameters established for a particular gauge;designated by VdwA.NOTE: This definition only applies to ball grades G500 to G700 and G80.3.11 Gauge intervalOne of the intervals into which the limit deviation for the nominal diameter of a ball is divide
20、d; designated by IG.3.12 Ball gradeA specific combination of dimensional, form and sorting tolerances, and of surface roughness for balls.NOTE: A ball grade is identified by the letter G followed by a number.3.13 Ball gaugeThe amount by which the mean ball diameter of a lot (for VDwL) or of a subset
21、 of a lot (for VDwA), differs fromthe nominal ball diameter, rounded to a whole multiple of the ball gauge interval; designated by S.3.14 Gauge deviationThe maximum deviation of the mean ball diameter from the nominal diameter.3.15 Arithmetical mean deviation of the profileThe arithmetical average v
22、alue of the departure of the profile of a surface from the mean line throughout aspecified sampling length, with deviations of form and waviness being ignored; designated by Ra.3.16 WavinessSurface irregularities of random or periodical deviation from the ideal spherical form.3.17 Surface defectAny
23、deviation of the surface from the ideal spherical form. Surface defects include irregularities originating frommanufacture (e.g. inhomogenous surface texture), mechanical damage, cracks or staining.3.18 HardnessMeasure of resistance to penetration as determined by specific methods.NOTE: The values i
24、ndicated in table 2 refer to Brinell hardness (HB), Vickers hardness (HV10) and Rockwellhardness (HRC), determined by the methods specified in DIN EN ISO 6506-1, DIN EN ISO 6507-1 andDIN EN ISO 6508-1, respectively.3.19 Material groupCollective term to denote materials of specific properties.4 Dimen
25、sions and designationRecommended nominal diameters of steel balls shall be as specified in table 1, other sizes being subject toagreement.The designation shall include the material number or name. Group 1 materials need not be included in thedesignation.EXAMPLES:Designation of a ball with a nominal
26、diameter, Dw, of 6 mm, made of hardened steel of grade 100 Cr6(material number: 1.3505), ball grade G10:Ball DIN 5401 6 G10Designation of a ball with a nominal diameter, Dw, of 6 mm, made of hardened steel of grade X45Cr13(material number: 1.3541), ball grade G20:Ball DIN 5401 6 G20 1.3541Designatio
27、n of a ball with a nominal diameter, Dw, of 6 mm, made of sintered ceramics, ball grade G5:Ball DIN 5401 6 G5 Si3N4Page 4DIN 5401 : 2002-08Table 1: Nominal diameters and mass of steel ballsApprox. massNominal ball diameter, Dw, in Size recommended for material of group2) per 1 000 units(7,85 g/cm3),
28、mm in1) 123456789 in kg3)0,4 X X X 0,000 260,5 X X X 0,000 511 XXXX XXX 0,0411,5 XXXXX XXX 0,1391,5881/16XXXXX XXX 0,1652 XXXXX XXX 0,3292,3813/32XXXXX XXX 0,552,5 XXXXX XXX 0,6422,7787/64XXXXX X 0,813 XXXXX XXX 0,113,1751/8XXXXX XXX 0,1323,5 XXXXX XXX 0,1763,9695/32XXXXX XXX 0,2574 XXXXX XXX 0,2634
29、,5 XXXXX XXX 0,3754,7623/16XXXXX XXX 0,445 XXXXX XXX 0,5145, XXXXX XXX 0,6845,5567/32XXXXX XXX 0,7055,95315/64X X 0,846 XXXXXXXXX 0,886,351/4XXXXXXXXX 1,056,5 XXXXXXXXX 1,136,74717/64X X X 1,267 XXXXXXXXX 1,417,1449/32XXXXXXXXX 1,57,5 XXXXXX X 1,737,9385/16XXXXXXXXX 2,068 XXXXXXXXX 2,118,5 X X X X X
30、 2,528,73111/32XXXXXX XX 2,749 XXXXXX XX 39,5 XXXXXX 3,529,5253/8XXXXXXXXX 3,5510 XXXXXXXXX 4,1110,31913/32XXXXXX X 4,5210,5 X XXXX X 4,751 XXXXXXXXX 5,4711,1127/16XXXXXXXXX 5,6411,5 X X X X 6,2511,90615/32XXXXXX X 6,9412 XXXXXXXX 7,112,30331/64X X X 7,6512,5 X X X X X 8,0312,71/2XXXXXXXXX 8,4213 XX
31、XXXXXXX 9,03(continued)Page 5DIN 5401 : 2002-08Table 1 (continued)Approx. massNominal ball diameter, Dw, in Size recommended for material of group2) per 1 000 units(7,85 g/cm3),mm in1) 123456789 in kg3)13,49417/32X X X X X 10,114 XXXXXXXXX 11,314,2889/16XXXXXX X 1215 XXXXXXXXX 13,915,08119/32X X X X
32、 X 14,115,8755/8XXXXXXXXX 16,416 XXXXXXXXX 16,816,66921/32XXX 1917 XXXX XXX 20,217,46211/16X X X X 21,918 XXXX XXXX 2418,25623/32XXX 2519 X X X X 28,219,053/4XXXX XXX 28,419,84425/32X 32,120 XXXX XXXX 32,920,5 X 35,420,63813/16XXXX X 36,121 X X 38,121,43127/32X 40,52 XXXX X X 43,822,2257/8XXXX X 45,
33、123 X X X 5023,01929/32X 50,123,81215/16X X X X 55,524 XXXX X 56,824,60631/32X X 61,225 XXXX XXX 64,225,4 1 XXXX 67,426 X X X 72,226,988 11/16X X 80,828 X X X 90,228,575 11/8X X X X X 95,930 XXXX XX 1130,162 13/16X X 11331,75 11/4XXXX 13232 X X 13533,338 15/16X 15234 X 16234,925 13/8X X 17535 XXXX17
34、636 X X 19236,512 17/16X 20038 X 22638,1 11/2XXXX 2739,688 19/16X 257(continued)Page 6DIN 5401 : 2002-08Table 1 (concluded)Approx. massNominal ball diameter, Dw, in Size recommended for material of group2) per 1 000 units(7,85 g/cm3),mm in1) 123456789 in kg3)40 XXXX XX 26341,275 15/8X X 28942,862 11
35、1/16X 32444,45 13/4X X 36145 XXXX 37546,038 113/16X X 40147,625 17/8X X 44450 XXXX 51450,8 2 X X 53953,975 21/8X 64655 X X X 68457,15 21/4X 76760 XXXX 8860,325 23/8X 90263,5 21/2X X 1 05265 X X X 1 12966,675 25/8X 1 21869,85 23/4X X 1 40170 XXXX 141073,025 27/8X 1 60175 X X 1 73476,2 3 X 1 81980 XXX
36、 21082,55 31/4X 2 31285 X X 2 52488,9 31/2X 2 88890 X X 2 99695 X 3 52495,25 33/4X 3 552100 X X X 4 110110 X 5 471114,3 41/2X 6 138120 X 7 103150 X 13 8721) Inch sizes, for information only.2) See table 2 for classification of materials into groups.3) Values for steel of group 1. When calculating ma
37、ss for other materials, use the correction factor given inthe last column of table 2.5 Materials and hardnessBalls shall be made of one of the materials listed in table 2, the use of other materials being subject to agreement.Page 7DIN5401:2002-08Material Ball diameterHardness1)Grade2)Correctionfact
38、ornumber designation Relevant standard Over Up to(mass)3)Material group 1: Hardened steel for roller bearings (except for stainless steel)4) 12,7 740 to 900 HV10 X X X X X X X X12,7 25,4 60 to 66 HRC X X X X X X X25,4 38,1 60 to 66 HRC X X X X38,1 50,8 60 to 66 HRC X X X X150,8 70 59 to 65 HRC X X X
39、70 100 57 to 63 HRC X X100 120 57 to 63 HRC X120 150 55 to 61 HRC XMaterial group 2: Hardened stainless steel for roller bearings 12,7 580 to 700 HV10 X X12,7 25,4 54 to 60 HRC X X25,4 38,1 54 to 60 HRC X38,1 50,8 54 to 60 HRC X50,8 70 54 to 60 HRC X 0,9870 100 54 to 60 HRC X 12,7 640 to 780 HV10 X1
40、2,7 25,4 57 to 63 HRC X25,4 38,1 57 to 63 HRC X(continued)Table 2: Materials, hardness and grades of ballsG3 G5 G10 G16 G20 G28 G40 G80 G100 G200 G300 G500 G600 G7001.3505 100Cr6 DIN EN ISO 683-171.3520 100CrMnSi6-4 DIN EN ISO 683-171.3536 100CrMo7-3 DIN EN ISO 683-171.3541 X47Cr14 DIN EN ISO 683-17
41、1.3543 X108CrMo17 DIN EN ISO 683-171.3549 X89CrMoV18-1 DIN EN ISO 683-17Page8DIN5401:2002-08Table 2 (continued)G3 G5 G10 G16 G20 G28 G40 G80 G100 G200 G300 G500 G600 G7001.4034 X46Cr13 DIN EN 10088-31.4112 X90CrMoV18 DIN EN 10088-31.4125 X105CrMo17 DIN EN 10088-3Material Ball diameterHardness1)Grade
42、2)Correctionfactornumber designation Relevant standard Over Up to(mass)3)Material group 3: Hardened stainless steel 12,7 580 HV10 to 700 HV10 X X X12,7 25,4 54 HRC to 60 HRC X X25,4 38,1 54 HRC to 60 HRC X38,1 50,8 54 HRC to 60 HRC X50,8 70 54 HRC to 60 HRC X 0,9870 100 54 HRC to 60 HRC X 12,7 X12,7
43、 25,4 X25,4 50,8 55 HRC to 60 HRC XMaterial group 4: Stainless steel, non-hardenable1.4301 X5CrNi18-10 DIN EN 10088-3 5 280 HV10 to 380 HV10 X X X1.4401 X5CrNiMo17-12-2 DIN EN 10088-3 5 25,4 280 HV10 to 380 HV10 X X 1,011.4571 X6CrNiMoTi7-12-2 DIN EN 10088-3 25,4 70 280 HV10 to 380 HV10 XMaterial gr
44、oup 5: Hardened carbon steel1.0616 C86D DIN EN 10016-2 20 700 HV10 to 860 HV10 X X X 1Material group 6: Carbon steel, non-hardenable1.1132 C15E2C DIN EN 10263-3 25,4 120 HV10 to 180 HV10 X11.0304 C9D DIN EN 10016-2 25,4 120 HV10 to 260 HV10 X(continued)Page 9DIN5401:2002-08Table 2 (concluded)G3 G5 G
45、10 G16 G20 G28 G40 G80 G100 G200 G300 G500 G600 G700CW508L CuZn37DIN EN 12163DIN EN 12166Material Ball diameterHardness1)Grade2)Correctionfactornumber designation Relevant standard Over Up to(mass)3)Material group 7: Copper-zinc alloy 25,4 120 HB to 280 HB X25,4 50,8 120 HB to 280 HB X 1,0950,8 75 1
46、20 HB to 280 HB XMaterial group 8: Copper-tin alloy 25,4 120 HB to 280 HB XCW453K CuSn8 DIN EN 12166 25,4 50,8 120 HB to 280 HB X 1,1250,8 75 120 HB to 280 HB XMaterial group 9: Sintered ceramics Si3N4 25,4 1550 HV10 to 1900 HV10 X X X 0,411) Material groups 1 to 3 and 5:The (surface) hardness value
47、s specified are achieved by heat treatment. During subsequent processing, work hardening in the surface zone may cause theupper hardness limit in that zone to be slightly exceeded.Material groups 4 and 6 to 8:Guideline values. Work hardening due to the manufacturing process may result in slightly de
48、viating values.2) Boxes shaded grey indicate all sizes covered by this standard, with boxes marked with an X identifying sizes to which preference should be given.3) See footnote 3) in table 1.4) The choice of the steel grade is up to the manufacturer.Page 10DIN 5401 : 2002-086 Requirements6.1 Dimen
49、sional and form tolerances, and surface roughnessTable 3: Dimensional and form tolerances, and surface roughnessDwtDws,GradeNominal size, Limit VDws, Ra6), VDwL5), VDwA5), IG, ST, Preferred gauges7),in mm deviations, in m in m in m in m in m values in mOver Up to in m5) Max. Max. Max. Max.G3 12,7 t 5,32 0,08 0,01 0,13 . 0,5 5 to 0,5 0 + 0,5 to + 5G5 12,7 t 5,63 0,13 0,014 0,25 . 15to10+1to+5G10 25,4 t 9,75 0,25 0,02 0,5 . 19to10+1to+9G161) 25,4 t 11,4 0,4 0,025 0,8 . 2 10 to 2 0 + 2 to + 10
