BS ISO 2795 pdf free download

BS ISO 2795-2020 pdf free download.Plain bearings — Sintered bushes — Dimensions and tolerances.
This document 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 references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. 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 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 Electropedia: available at http:// www .electropedia .org/
4 Material
Materials used for manufacturing sintered bearings shall conform to ISO 5755.
5 Cylindrical bearings
5.1 Dimensions
Dimensions for cylindrical bearings are shown in Figure 1, Table 1 and Table 2.
5.2 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 bearings before fitting are given. 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 discussed with the manufacturer.
As-delivered:
— on outside diameter, D: in the ranges
— r6 to s7, for D ≤ 50 mm, and
— r7 to s8, for D > 50 mm;
— on inside diameter, d: in the ranges
— F7 to G7, for D ≤ 50 mm, of and
— F8 to G8, for D > 50 mm;
— on bearing length, L: js13;
— on coaxiality of the outside diameter with respect to the inside surface diameter (tolerance based
on the outside diameter, D)
— t1 = IT9, for D ≤ 50 mm, and
— t2 = IT10, for D > 50 mm.
Insertion pin: in the range m5 to m6.
Housing: H7.
Bearing bore after fitting (assuming the housing is rigid):
— H7, for D ≤ 50 mm;
— H8, for D > 50 mm.
6 Flanged bearings
6.1 Dimensions
Dimensions for flanged bearings are shown in Figure 2, Table 3, Table 4 and Table 5.
6.2 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 and on the flange before fitting are given. 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 discussed with the manufacturer.
As-delivered:
— on outside diameter, D: in the ranges
— r6 to s7, for D ≤ 50 mm, and
— r7 to s8, for D > 50 mm;
— on inside diameter, d: in the ranges
— F7 to G7, for D ≤ 50 mm, and
— F8 to G8, for D > 50 mm;
— on bearing length, L: js13;
— on flange diameter, D fl : js13;
— on flange thickness, e: js13;
— on coaxiality of the outside diameter with respect to the inside surface diameter (tolerance based
on the outside diameter, D)
— t1 = IT9, for D ≤ 50 mm, and
— t2 = IT10, for D > 50 mm.
Insertion pin: in the range m5 to m6.
Housing: H7.
Bearing bore after fitting (assuming the housing is rigid):
— H7, for D ≤ 50 mm;
— H8, for D > 50 mm.BS ISO 2795 pdf download.