BS ISO 3228:2013 pdf download – Rolling bearings — Cast and pressed housings for insert bearings — Boundary dimensions and tolerances 1 Scope This InternationalStandard specifies boundary dimensions and tolerances for castand pressed housingsfor insert bearings for which boundary dimensions are given in lS0 9628[1]. lt applies to plummer block housings, flanged housings and take-up housings. The inclusion of relubrication features is optional, but when provided it is intended that they intersect thezone specified in ISO 9628[1]in such a way that lubricant satisfactorily feeds from the housing through thiszone.The exact design of the relubrication features is not otherwise covered by this International Standard. 2Normative references The following documents, in whole or in part, are normatively referenced in this document and areindispensable for its application.For dated references,only the edition cited applies. For undatedreferences, the latest edition of the referenced document (including any amendments) applies. ISO 5593,Rolling bearings – Vocabulary ISO 15241, Rolling bearings — Symbols for quantities 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5593 apply. 4 Symbols 4.1 General For the purposes of this document, the symbols given in ISO 15241 and those in 4.2 to 4.7 apply. The symbols (except those for tolerances) shown in Figures 1 to 6, and the values given in Tables 1 to 10denote nominal dimensions, unless specified otherwise. NOTE Figures 1 to 6 are drawn schematically and do not necessarily show all design details. The greasenipple positions in Figures 1 to 4are examples.Other positions are at the discretion of the manufacturer. 4.2 Cast plummer block housing See Figure 1 and Tables 1 and 2. A (overall) width of base D a spherical seating diameter of housing H distance from mounting base to centreline of spherical seating diameter H 1 height of feet J centre distance between bolt holes L (overall) length of base N width of bolt hole N 1 length of bolt hole Δ Hs deviation of single distance from mounting base to centreline of spherical seating diameter 4.3 Cast flanged housing, square See Figure 2 and Tables 3 and 4. A (overall) width A 1 width of flange A 2 distance from mounting face to centreline of spherical seating diameter D a spherical seating diameter of housing J centre distance between bolt holes L (overall) length N diameter of bolt hole X position tolerance of bolt holes Δ A2s deviation of single...

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