BS ISO 9448-9:2013 pdf download.Tools for pressing — Guide bushes Part 9: Form B, ball cage bushes, plain, type 2
This part of ISO 9448 specifies the main dimensions and tolerances, in millimetres, of guide bushes of form B, plain ball cage bushes, type 2, intended for use in press tools and to be mounted in the clamp plate by means of interference fit. It gives guidance on the materials, and specifies the hardness and the designation of bushes in accordance with this part of ISO 9448.
2 Dimensions
The dimensions of type 2 plain ball cage bushes (form B) shall conform to the indications of Figure 1 and Table 1.
Details not stated, such as chamfers, radii and lubrication grooves, are left to the manufacturer’s discretion.
3 Material
The material is left to the manufacturer’s discretion and the hardness shall be 60 +2 0 HRC.
4 Designation
A guide bush in accordance with this part of ISO 9448 shall be designated by:
a) “Guide bush”;
b) a reference to this part of ISO 9448, i.e ISO 9448-9;
c) its form;
d) its guiding diameter, D 1 , in millimetres;
e) its length, l 1 , in millimetres.
EXAMPLE A guide bush of form B, plain ball cage bush, type 2 of guiding diameter D 1 = 25 mm and of length l 1 = 50 mm is designated as follows:
Guide bush ISO 9448-9 B – 25 × 50.BS ISO 9448-9 pdf download.ISO 9448-9-2013 pdf download
