ISO 2795-2014 pdf free.Plain bearings – Sintered bushes – Dimensions and tol lerances. ISO 2795 specifies the dimensions and tolerances applicable to sintered bearings for the following ranges of inside diameters: — cylindrical bearings: 1 mm to 60 mm; — flanged bearings: 1 mm to 60 mm, — spherical bearings: 1 mm to 20 mm. 2 Normative reference The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5755, Sintered metal materials — Specifications 3 Material The following materials used for manufacturing sintered bearings shall conform to ISO 5755. 4 Cylindrical bearings 4.1 Dimensions See Figu I and Tables 1 and 2. 4.2 Tolerances The tolerances for the bearings after fitting and the tolerances for the housing and insertion pin are given below. In addition, the tolerances for the inside and outside diameters of the bearing before fitting are given. NOTE Since the actual tolerances and combinations of tolerances in the as-delivered state depend upon the characteristics of the materials and the manufacturing methods, they should be…

BS ISO 6280:2018 pdf free.Plain bearings  – Requirements and guidance on backings for thick-walled multilayer bearings. There are no normative references in this document. 3 Terms and definitions No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https://www.iso.org/obp — IEC Elect ropedia: available at http:J/www.electropedia.org/ 4 Backing materials 4.1 General Steel and cast steel, cast iron with lamellar and spheroidal graphite as well as cast copper alloys are used as backing materials. For cast iron backing, additional dovetailed grooves may be used on bond surface for mechanical anchoring. 4.2 Steel and cast steel Before lining, the backing is heat-treated for normalizing and Stresses relieving. Typical contents of elements for bonding: — C < 0.25 % (mass fraction); — Cr 1,1 % (mass fraction); — Ni < 0,5 % (mass fraction). The hydrogen contents of a backing having a thickness of 40 mm or more shall be not more than 1,7 ppm. A properly-controlled process shall be used to reduce the hydrogen content to a level that ensures trouble-free running of the bearing during its initial period operation. The bond…