1、UDC 621.873 : 621.861 DEUTSCHE NORM July 1982 E m m o W 3 L E z 3 L L c - c c - v S v 3 m c o z a - c 0 !2 E Q L 0 5 a f s P o c O u O u L a o. o O. , E; L I 5 z U c u). v) - L O - a O z Cranes Bottom blocks Sealing covers for type A rope pulleys with I- cylindrical rolling bearing and internal slee
2、ve - IDIN I 15422 Part 3 Krane; Unterflaschen; Verschlussdeckel fr Seilrollen der Form A mit Zylinderrollenlager und Innenbuchse In keeping with current practice in standards published by the International Organization for Standardization (SO), a comma has been used throughout as the decimal marker.
3、 Dimensions in mm 1 Scope and field of application The specifications of this standard apply for sealing covers for type A rope pulleys conforming to DIN 15422 Part 1. Dimensioning and finish are specified in this standard. This standard provides the necessary basis for exchanging sealing covers. 2
4、Dimensions, designation See page 2 for illustrations, dimensions and designation. 3 Material Steel at the manufacturers discretion. 4 Finish Finish of all surfaces machined by cutting in accordance with DIN IS0 1302 - in the region of d7 and d11, roughness grade N 8; - elsewhere, roughness grade N 9
5、. DIN 7168 - m and DIN 7168 -S general tolerances shall apply to the dimensions with no tolerance indication. Unless otherwise agreed, only sealing covers for shaft gaskets shall be used. When mounting the chaff gasket, ensure that the sealing lip faces outward. Continued on page 2 Standards referre
6、d to DIN 3760 Selection sheet 1 DIN 6912 DIN 7168 Part 1 DIN 7168 Part 2 DIN 15408 DIN 15409 DIN 15422 Part 1 DIN IS0 1302 Radial shaft gaskets; selection of types and dimensions for steel works installations and rolling mill installations and cranes Hexagon socket flat head cap screws with pilot fo
7、r wrench key General tolerances; linear and angular dimensions General tolerances; form and position Cranes; twin sheave bottom blocks; assembly Cranes; quadruple sheave bottom blocks; assembly Cranes; bottom blocks; type A rope pulleys with cylindrical rolling bearing and internal sleeve Technical
8、drawings; methods of indicating surface texture on drawings Other relevant standards DIN 15422 Part 2 Cranes; bottom blocks; spacer sleeves for type A rope pulleys with cylindrical rolling bearing and internal sleeve International Patent Classification F 16 H 55/50 B 66 D _ _ Beuth - - Verlag GmbH.
9、Berlin 30. has exclusive sale rights for German Standards (DIN-Normen) DIN 15 422 Part 3 Engl. Price group 03.815 Sales No. 0104 Page 2 DIN 15422 Part 3 d7 f7 Sealing cover with deep groove seal (DI 7% Associated radial conforming to DIN 3760 Number shaft gasket type A dio b di1 42) 43) 44 di5 di6 t
10、z) t3 of H8 bores Detail 1 200 I 161 Sealing cover for shaft gasket (E) 20.5 190 11 18 192 225 250 9 14.5 6 160 X 190 X 15 Detail Y Other dimensions as for type D sealing cover Designation of a sealing cover with deep groove seal (DI, with diameters d7 = 180 mm and di0 = 131 mm: Sealing cover DIN 15422 - D 180 X 131 Table 1. Rope pulleysfor twin sheave bottom blocks conforming to DIN 15408 215 I 171 270 300 241 320 350 I 281 1) See table 1 - I.
