1、February 2008 Translation by DIN-Sprachendienst.English price group 7No part of this translation may be reproduced without 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).IC
2、S 21.100.20!$nZB“1755531www.din.deDDIN 628-3Rolling bearings Angular contact radial ball bearings Part 3: Double rowEnglish translation of DIN 628-3:2008-02Wlzlager Radial-Schrgkugellager Teil 3: ZweireihigEnglische bersetzung von DIN 628-3:2008-02Roulements Roulements radial contact oblique Partie
3、3: Roulements deux rangesTraduction anglaise de DIN 628-3:2008-02SupersedesDIN 628-3:1993-12www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.904.11 DIN 628-3:2008-02 A comma is used as the decimal marker. Contents Page Foreword. 3 1
4、 Scope . 4 2 Normative references . 4 3 Type, designation, dimensions . 4 3.1 General. 4 3.2 Type 5 3.3 Designation . 5 3.4 Dimensions and symbols 6 4 Material 7 5 Design 7 Annex (informative) Explanatory notes 9 Bibliography . 9 Figures Figure 1 Without filling slot 5 Figure 2 With filling slot . 5
5、 Figure 3 With lateral recesses . 5 Figure 4 With two shields (2Z) . 5 Figure 5 With two seals (2RS) 5 Tables Table 1 Dimensions, symbols 6 Table 2 Limit values for the axial internal clearance Ga . 8 2 DIN 628-3:2008-02 Foreword This standard has been prepared by Working Committee NA 118-01-02 AA K
6、ugellager und Spannlager einschlielich Teile, allgemeines Wlzlagerzubehr und Gehuse of the Normenausschuss Wlz- und Gleitlager (Rolling Bearings and Plain Bearings Standards Committee). Amendments This standard differs from DIN 628-3:1993-12 as follows: a) the standard has been completely revised; b
7、) Table 1 has been extended to include types 3224, 3226, 3228 and 3312-2Z to 3315-2Z and 3312-2RS; c) information on masses has been deleted from Table 1; d) in Table 2, a new class C4 has been added for the axial internal clearance; e) the normative references have been updated. Previous editions D
8、IN 622: 1922-01, 1923-12 DIN 622-1: 1928-07, 1929-04 DIN 622-2: 1927-04 DIN 623: 1923-12 DIN 628: 1939-12 DIN 628-1: 1942-08, 1959-09, 1962-03, 1973-03, 1993-12 DIN 628-3: 1993-12 3 DIN 628-3:2008-02 1 Scope This standard specifies dimensions and symbols for double row (self-locking) angular contact
9、 radial ball bearings with cage. It covers a selection of angular contact ball bearings of this type matched to the practical needs of users, taking into account the dimension plan specified in DIN 616. 2 Normative references The following referenced documents are indispensable for the application o
10、f this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 616, Rolling bearings General plan for boundary dimensions DIN 620-1, Rolling bearings Gauging methods for dimensional
11、and running tolerances DIN 620-2, Rolling bearings Tolerances for rolling bearings Tolerances for radial bearings DIN 620-6, Rolling bearings Rolling bearing tolerances Part 6: Chamfer dimension limits DIN 623-1, Rolling bearings Fundamental principles Designation, marking DIN EN ISO 683-17, Heat-tr
12、eated steels, alloy steels and free-cutting steels Part 17: Ball and roller bearing steels 3 Type, designation, dimensions 3.1 General The designs shown are for illustrative purposes only; however, the dimensions of double row angular contact ball bearings shall be as specified. Details of the inner
13、 design are not standardized. Bearings with reinforced ball sets are still frequently available with filling slots. Basic type bearings without seals and shields can have recesses at the side. The symbols used shall comply with DIN 623-1. 4 DIN 628-3:2008-02 3.2 Type Figure 1 Without filling slot Fi
14、gure 2 With filling slotFigure 3 With lateral recessesFigure 4 With two shields (2Z) Figure 5 Withtwo seals (2RS) 3.3 Designation Designation of a double row angular contact ball bearing of diameter series 2 with a bore diameter, d, of 30 mm, external diameter D = 62 mm and width B = 23,8 mm (symbol
15、 3206), basic type, tolerance class PN, axial internal clearance CN, cage at the manufacturers discretion: Angular contact ball bearing DIN 628 3206 Designation of a double row angular contact ball bearing of diameter series 3 with a bore diameter, d, of 40 mm, external diameter D = 90 mm and width
16、B = 36,5 mm (symbol 3308), with two seals (2RS), tolerance class P6 plus axial internal clearance C2 (= P62), cage at the manufacturers discretion: Angular contact ball bearing DIN 628 3308-2RS-P62 5 DIN 628-3:2008-02 3.4 Dimensions and symbols Table 1 Dimensions, symbols Dimensions in millimetres S
17、ymbol r1sr2sType d D B min. Basic type 2Z 2RS 10 30 14a0,6 3200 3200-2Z 3200-2RS 12 32 15,9 0,6 3201 3201-2Z 3201-2RS 35 15,9 0,6 3202 3202-2Z 3202-2RS 15 42 19 1 3302 3302-2Z 3302-2RS 40 17,5 0,6 3203 3203-2Z 3203-2RS 17 47 22,2 1 3303 3303-2Z 3303-2RS 47 20,6 1 3204 3204-2Z 3204-2RS 20 52 22,2 1,1
18、 3304 3304-2Z 3304-2RS 52 20,6 1 3205 3205-2Z 3205-2RS 25 62 25,4 1,1 3305 3305-2Z 3305-2RS 62 23,8 1 3206 3206-2Z 3206-2RS 30 72 30,2 1,1 3306 3306-2Z 3306-2RS 72 27 1,1 3207 3207-2Z 3207-2RS 35 80 34,9 1,5 3307 3307-2Z 3307-2RS 80 30,2 1,1 3208 3208-2Z 3208-2RS 40 90 36,5 1,5 3308 3308-2Z 3308-2RS
19、 85 30,2 1,1 3209 3209-2Z 3209-2RS 45 100 39,7 1,5 3309 3309-2Z 3309-2RS 90 30,2 1,1 3210 3210-2Z 3210-2RS 50 110 44,4 2 3310 3310-2Z 3310-2RS 100 33,3 1,5 3211 3211-2Z 3211-2RS 55 120 49,2 2 3311 3311-2Z 3311-2RS 110 36,5 1,5 3212 3212-2Z 3212-2RS 60 130 54 2,1 3312 3312-2Z 3312-2RS 120 38,1 1,5 32
20、13 3213-2Z 3213-2RS 65 140 58,7 2,1 3313 3313-2Z 125 39,7 1,5 3214 3214-2Z 3214-2RS 70 150 63,5 2,1 3314 3314-2Z 130 41,3 1,5 3215 3215-2Z 3215-2RS 75 160 68,3 2,1 3315 3315-2Z 140 44,4 2 3216 3216-2Z 3216-2RS 80 170 68,3 2,1 3316 150 49,2 2 3217 3217-2Z 3217-2RS 85 180 73 3 3317 160 52,4 2 3218 90
21、190 73 3 3318 170 55,6 2,1 3219 95 200 77,8 3 3319 180 60,3 2,1 3220 100 215 82,6 3 3320 6 DIN 628-3:2008-02 Table 1 (concluded) Symbol r1sr2sType d D B min. Basic type 2Z 2RS 190 65,1 2,1 3221 105 225 87,3 3 3321 200 69,8 2,1 3222 110 240 92,1 3 3322 120 215 76 2,1 3224 130 230 80 3 3226 140 250 88
22、 3 3228 rsSingle chamfer dimension aBearing width differs from general plan given in DIN 616 . 4 Material Balls and rings shall be made from ball and roller bearing steels as in DIN EN ISO 683-17. The material of the cage shall be at the manufacturers discretion or subject to agreement, with due con
23、sideration being given to DIN 623-1. 5 Design The following types of double row angular contact ball bearings are available: a) Basic type (see Figures 1 to 3); b) Ball bearings with shields or seals: 1) shields (non-contact seals); 2Z (see Figure 4); 2) seals (contacting seals); 2RS (see Figure 5).
24、 Basic type bearings may be designed with or without filling slots. The contact angle shall be between 25 and 35 at the manufacturers discretion. Unless otherwise specified by the purchaser, the bearing manufacturer may supply the bearings with recesses to accommodate seals or shields. The type of l
25、ubrication of bearings with shields or seals shall be at the manufacturers discretion. Tolerances shall be as specified in DIN 620-2. Chamfer dimensions: Maximum values as specified in DIN 620-6. Gauging methods for dimensional and running tolerances shall be as specified in DIN 620-1. 7 DIN 628-3:2
26、008-02 Axial internal clearance shall be as specified in Table 2. The cage design shall be at the manufacturers discretion or subject to agreement, with due consideration being given to DIN 623-1. Mass: Because cage design and cage material vary depending on the manufacturer, no information on mass
27、is provided. Table 2 Limit values for the axial internal clearance Ga Ga m 30 35 Classesad mm C2 CN C3 C4 over up to min. max. min. max. min. max. min. max. 10 1 11 5 21 12 28 25 45 10 18 1 12 6 23 13 31 27 47 18 24 2 14 7 25 16 34 27 47 24 30 2 15 8 27 18 37 30 50 30 40 2 16 9 29 21 40 33 54 40 50
28、2 18 11 33 23 44 36 58 50 65 3 22 13 36 26 48 40 63 65 80 3 24 15 40 30 54 46 71 80 100 3 26 18 46 35 63 55 83 100 120 4 30 22 53 42 73 65 96 120 140 4 34 25 59 48 82 74 108 aFor bearings having a contact angle of 30. Axial internal clearance at the discretion of the manufacturer. 8 DIN 628-3:2008-0
29、2 9 Annex (informative) Explanatory notes The external dimensions of the double row angular contact ball bearings conform to ISO 15. Bibliography DIN 628-1, Rolling bearings Angular contact radial ball bearings Part 1: Single row self-locking DIN 628-4, Rolling bearings Angular contact radial ball b
30、earings Part 4: Single row, double-direction not self-locking, with double-split inner ring (Four-point contact bearing) DIN 628-5, Rolling bearings Angular contact radial ball bearings Part 5: Double row, with spacer balls DIN 5418, Rolling bearings Dimensions for mounting DIN 5425-1, Rolling bearings Mounting tolerances General guidelines DIN ISO 76, Rolling bearings Static load ratings DIN ISO 281, Rolling bearings Dynamic load ratings and rating life ISO 15, Rolling bearings Radial bearings Boundary dimensions, general plan
