1、UDC 621.822.6/.8 : 621.753.1 : 003.62 DEUTSCHE NORM February 1988 Rolling bearings Tolerances for rolling bearings Tolerances for radial bearings oiN 620 Part 2 Wlzlager; Wlzlagertoleranzen; Toleranzen fr Radial lager In keeping with current practice in standards published by the International Organ
2、ization for Standardization (SO), a comma has been used throughout as the decimal marker. See Explanatory notes for connection with International Standard IS0 492 - 1986 published by the International Organization for Standardization (ISO). Supersedes June 1982 edition. Con tents Page 1 Scope and fi
3、eld of application . 1 2 Terminology 1 4 Quantities and symbols . 2 in general . 2 3 Gauging methods . 1 4.1 Quantities and symbols for rolling bearings 4.2 Quantities and symbols particular to tapered roller bearings 3 5 Tolerances 3 5.1 Radial bearings except tapered roller bearings . 3 5.1.1 Tole
4、rance class PO (normal tolerance class) . . 4 Page 5.1.2 Tolerance class P6 5 5.1.3 Tolerance class P5 6 5.1.4 Tolerance class P4 7 5.1.5 Tolerance class P2 8 5.2 Tapered roller bearings 8 5.2.1 Tolerance class PO (normal tolerance class) . . 9 5.2.2 Tolerance class P6X . 10 5.2.3 Tolerance class P5
5、 10 5.2.4 Tolerance class P4 11 5.3 Tapered bore (taper 1 : 12) 12 5.3.1 Tolerance class PO (normal tolerance class) . . 12 5.4 Tapered bore (taper 1 : 30). . 13 5.4.1 Tolerance class PO (normal tolerance class) . . 13 1 The tolerances specified in this standard ensure performance and interchangeabi
6、lity of components and bearings of radial rolling bearings. They do not, however, allow any direct conclusions to be drawn in respect of the runout tolerances. The tolerances specified apply to radial rolling bearings covered in the dimension standards for rolling bearings, not, however, to radial r
7、olling bearings for use in the aircraft industry, tolerances for such bearings being specified in separate standards. As compared with IS0 492 - 1986, this standard does not specify tolerances for the outer ring flange; see Explanatory notes. See IS0 1132 - 1982 for definitions and DIN 620 Part 1 fo
8、r gauging methods. Scope and field of application 2 Terminology See IS0 1132 for concepts relating to tolerances specified in this standard. 3 Gauging methods The gauging methods permitting dimensions to be measured for which tolerances are specified in this standard are optional. In cases of arbitr
9、ation, the gauging methods specified in DIN 620 Part 1 shall be used. Continued on pages 2 to 14 Beuih Verlag GmbH. Berlin, has the exclusive right of sale for German Standards (DIN-Normen) DIN 620 Part 2 Engl. Price group i 04.89 Sales No.0111 Page 2 DIN 620 Part 2 L I- Y .- -6- Q-0 a 4 Quantities
10、and symbols 4.1 Quantities and symbols for roller bearings in general Figure 1. Figure 2. Figure 3 l). Symbols and quantities as specified in IS0 1132, June 1982 edition d dl Ads A amp Adlm mean bore diameter deviation at theoretical large end of a basically tapered bore vamp (Y nominal taper angle
11、. - D1 outer ring flange outside diameter. . - Subclause nominal bore diameter. 4.1.1 basic diameter at theoretical large end of a basically tapered bore. deviation of a single bore diameter . 4.1.3 single plane mean bore diameter deviation 4.1.8 bore diameter variation in a single radial plane . 4.
12、1.9 mean bore diameter variation. 4.1.10 D nominal bearing outside diameter. . 4.2.1 A Ds deviation of a single outside diameter . 4.2.3 A Dmp single plane mean outside diameter deviation . 4.2.8 outside diameter variation in a single radial plane. . 4.2.9 VD, VD mean outside diameter variation. 4.2
13、.10 B nominal inner ring width. 4.4.1 A Bs deviation of a single inner ring width. 4.4.3 VBs inner ring width variation 4.4.4 C nominal outer ring width . 4.4.1 A cS deviation of a single outer ring width. . 4.4.3 Vc, outer ring width variation . 4.4.4 Ki, radial runout of assembled bearing inner ri
14、ng 5.1.1 K, radial runout of assembled bearing outer ring 5.1.2 S, inner ring reference face runout with bore 5.3.1 SD variation of bearing outside surface generatrix inclination with outer ring reference face. . 5.5.1 Si, assembled bearing inner ring face runout with raceway. . 5.2.1 S, assembled b
15、earing outer ring face runout with raceway. . 5.2.3 - - Vdp . . . C1 outer ring flange width. - A clS Vcl, outer ring flange width variation. - deviation of a single outer ring flange width . - SD1 variation of bearing outside surface generatrix inclination with flange back face . - SWl assembled be
16、aring outer ring flange back face runout with raceway. . - l) See clause I. DIN 620 Part 2 Page 3 42 Quantities and symbols particular to tapered roller bearings Master outer sub-unit r+r-P-I+l -rl Master inner sub-unit Figure 4. Figure 5. Figure 6. Figure 7 l). Additional quantities and symbols: T
17、nominal bearing width AT T1 AT T2 AT2 AT2s deviation of the actual bearing width nominal effective width of inner sub-unit difference between the largest and smallest value of TI measured deviation of the actual effective width of inner sub-unit nominal effective width of outer sub-unit difference b
18、etween the largest and smallest value of T2 measured deviation of the actual effective width of outer sub-unit 5 Tolerances 5.1 Radial bearings except tapered roller bearings Bore diameter tolerances given in this subclause apply to basically cylindrical bores. Tolerances for tapered bores are given
19、 in subclauses 5.3 and 5.4. li See clause 1. Page 4 DIN 620 Part 2 d mm Over I up to 5.1.1 Tolerance class PO (normal tolerance class) Table 1. Inner rina (tolerance values aiven in um) Admp Deviation upper I lower max. 6 6 6 8 9 11 15 19 23 26 30 max. upper lower upper lower 10 O -40 - - 10 O -120
20、O -250 10 O - 120 O -250 13 O -120 O -250 15 O -120 O -250 20 o -150 O -380 25 O -200 O -380 30 O -250 O -500 40 O -300 O -500 50 O -350 O -5O 60 O -400 O -630 630 800 1 O00 1250 1600 800 O -75 - - - 1 o00 o -100 - - - 1250 O -125 - - - 1600 O -160 - - - 2000 o -200 - - - Deviation I for diameter se
21、ries as in DIN 616 7, 8, 9 I O, 1 I 2, 3, 4 I 2, 3, 4 lower -8 -8 max. max. 6 10 6 “1 10 :I 61 10 6 - 13 - 15 - 18 - 25 - 30 -35 - 40 -45 16 13 10 20 10 19 19 11 26 11 23 23 14 30 14 31 31 19 38 19 38 38 23 - 23 44 44 26 - 26 50 50 30 - 30 56 56 34 - 34 120 150 180 250 315 400 500 630 800 IWO 1250 1
22、600 2000 150 O 180 O 250 O 315 O 400 O 500 O 630 O 800 O 1000 O 1250 O 1600 O 2000 O 2500 O II A Bs for diameter series as in DIN 616 7, 8, 91 O. 1 12, 3, VBS max. max. - 12 15 0,6) 2s 10 2P 10 18 11 20 20 - O -8 18 30 50 30 50 80 20 25 O - 15 80 120 180 250 315 -_ 25 30 30 35 40 _ 120 180 250 315 4
23、00 - 20 - 25 - 30 -35 - 40 400 1 500 1 01 -45 I 56 I 56 I 34 500 I 630 I 01 -50 I 63 I 63 I 38 341 651 O I -4501 - I - 381 701 O I -5001 - I - 50 60 - - I 80 I O I -7501 - I - 70 80 1 O0 120 140 - - Table 2. Outer ring (tolerance values given in pm) II-2) - ves Capped bear i ngs Open bearings D mm 2
24、3 1 30 50 50 80 80 120 O -9 I 12 I 91 71 12 I 7 -11 I 14 I 11 I 81 16 I 8 of inner ring of the same (see table 1). 100 120 ) This diameter is included in the group. *) Applies before mounting and after removal of internal or external snap ring. DIN 620 Part 2 Page 5 vdmp rnax. 8 9 11 14 5.1.2 Tolera
25、nce class P6 Table 3. Inner ring (tolerance values given in um) Kia max. 55 56 57 68 10 10 13 18 - VBS max. - 12 15 20 O o o o o O o O O O O O O - 40 -120 -120 -120 -120 -150 -200 -250 -300 -350 -400 -450 -500 mm Over Up to 6 18 30 30 50 50 80 80 120 6 251) 18 for diameter series as in DIN 616 Devia
26、tion 7, 8,9 I O, 1 I 2,3,4 10.1.2.3.4 upper lower max. O -7 9 7 5 9 O -7 9 7 5 9 O -8 10 8 6 10 O -9 11 9 7 13 O -11 14 11 8 16 O - 13 16 16 10 20 120 150 180 250 315 400 500 630 800 150 O - 15 19 19 11 25 180 O -18 23 23 14 30 250 o -20 25 25 15 - 3 15 O -25 31 31 19 - 400 O - 28 35 35 21 - 500 O -
27、 33 41 41 25 - 630 O - 38 48 48 29 800 o -45 56 56 34 - 1000 O - 60 75 75 45 - - dp for diameter series as in DIN 616 , 8, 91 O, 1 12, 3, 4 Modified 2, deviation Deviation upper I lower Over I pto I upper I lower max lower - - - 250 - 250 - 250 - 250 - 380 - 5 5 5 6 8 9 - 0.6 1) 23 2.5 I 10 10 18 1
28、; - 10 - 12 j. 15 15 19 19 23 23 28 28 31 38 38 44 44 50 50 - O O O 20 20 25 25 30 30 - 11 14 17 O O O - 380 - 500 - 500 120 120 180 180 250 250 315 315 400 400 500 500 630 19 23 26 30 - 500 - 630 - - - 35 40 45 50 - -30 - 35 l) This diameter is included in the group. I 2, This refers to bearings ma
29、de for paired mounting. Table 4. Outer ring (tolerance values given in ri.m) 10 8 13 10 18 Identical to of inner ring of the same bearing (see table 3). and vBs 30 25 40 29 50 34 60 45 75 1 This diameter is included in the group. 2, Applies before mounting and after removal of internal or external s
30、nap ring. Page 6 DIN 620 Part 2 max. 8 8 8 9 10 13 15 20 5.1.3 Tolerance class P5 Table 5. Inner ring (tolerance values given in pm) Deviation deviation upper lower upper lower max. 70 -40 O -250 5 70 -40 O -250 5 70 -80 O -250 5 O -120 O -250 5 O -120 O -250 5 O -150 O -250 6 o -200 o -380 7 O -250
31、 O -380 8 O -300 O -500 10 O -350 O -500 13 O -400 O -630 15 VD, 2, 1 mm Over Up to 2,511 6 6 18 18 30 30 50 50 80 80 120 120 150 150 180 180 250 Z50 315 315 400 100 500 i00 630 630 800 Deviation upper lower O -5 O -5 O -6 O -7 O -9 o -10 O -11 O - 13 O - 15 O - 18 o - 20 O - 23 O - 28 O - 35 for di
32、ameter series as in DIN 616 7, 8,910, 1, 2, 3. 4 max. am Sd m ax 3 3 3 3 4 5 5 7 8 9 12 - - - - - max. 4 4 4 - nax. 7 7 7 - upper lower - 10 - 13 - 15 O - 18 O - 23 Over 0,61 23 10 18 30 50 80 120 180 up to 25 10 18 30 50 80 120 180 250 _- - 5 5 5 6 8 9 10 13 15 - 4 4 4 5 6 7 4 5 5 8 8 8 8 10 12 6 8
33、 10 9 10 11 315 400 18 23 14 18 13 15 13 15 250 315 1 This diameter is included in the group. 2, Applies to groove ball bearings only. 3, This refers to bearings made for paired mounting. Table 6. Outer ring (tolerance values given in pm) 1 VC 5 max. 5 5 5 5 6 8 8 8 10 11 13 15 18 20 kr for diameter
34、 series asin DIN616 1 Vmp I Kea I SD 1 Sea3) I ADmp Identical to ABS of inner ring of the same bearing (see table 5). l) This diameter is included in the group. 3, Applies to groove ball bearings only. No values have been specified for capped bearings. DIN 620 Part 2 Page 7 general plan of boundary
35、dimensions Rolling bearings; gauging methods for dimensional and runout tolerances Rolling bearings; radial bearings; tolerances Rolling bearings; radial bearings; tolerances Other relevant standards DIN 620Part3 Rolling bearings; tolerances for thrust bearings DIN 620Part4 DIN 620 Part6 DIN 7160 IS
36、OIR 286 - 1962 “1 Rolling bearings; tolerances for rolling bearings; radial internal clearance Rolling bearings; metric bearing series; limits of size for chamfer distances IS0 allowances for external dimensions (shafts) for nominal dimensions from 1 mm to 500mm IS0 system of limits and fits. Part 1
37、: General, tolerances and deviations Previous editions DIN 620: 11.32,03.36; DIN 620 Part 1: 08.42; DIN 620 Part 3: 03.64; DIN 620 Part 2: 07.40; 03.63,01.65,06.82. Amendments The following amendments have been made to the June 1982 edition. a) The scope of the standard has been extended to include
38、tolerance values for taper 1 : 30. b) The title of all the standards of the DIN 620 series has been amended to Tolerances for rolling bearings. c) The standard has been brought into line with IS0 492 - 1986 except for the tolerance values for the outer ring flange. Explanatory notes In the course of
39、 international standards work, the system of rolling bearing tolerances has been amended, elaborated and the representation modified. The Arbeitsausschu Wlzlager (Rolling Bearings Standards Committee) decided to adopt this system in its DIN 620 series. The specifications of clauses 4 and 5 of this s
40、tandard have been adopted from IS0 492 “),except for subclause 5.4 and for the tolerance values for the outer ring flange, the latter not meeting with general approval in the Federal Republic of Germany. In this respect, the German committee will prepare a proposal which, once accepted by ISO, will
41、be included in this standard. The DIN 620 series specifies a complete range of values for tolerances, radial internal clearance and chamfer distances, thus enabling the user of these standards, as hitherto, to check compliance of bearings with these standards as regards dimensional accuracy, radial
42、internal clearance and chamfer distances. The combination of values for all tolerance classes of radial bearings in one standard, identified by internationally accepted symbols, to a certain extent already represents formal equivalence with IS0 492. International Patent Classification F 16 C 33/34 F 16 C 33/58 F 16C 19/22 *) Obtainable from Beuth Verlag GrnbH (Auslandsnormenverrnittlung), Burggrafenstrae 6, D-1000 Berlin 30.
