First, the cage:
① A5052S aluminum alloy
② copper alloy
③ POM polyacetal resin
Second, the ball:
SUJ2 bearing steel, ball sphericity 0.25μm, ball heat treatment hardness 62 ~ 67HRC
Ball bushing because of its special purpose of its production process is also more special: the production process using a special lock beads process, to eliminate the ball off and dead beads phenomenon. Ball bushing steel ball size consistent within 0.0025mm, steel ball sleeve with the amount of interference is 0.01-0.02mm, so that the mold movement balance flexible.
Ball bushing is widely used in SRP, TRP, continuous die, independent guide post, cold punch die holder, high precision punch and machine tool attachment above, with high precision axial or radial movement to maintain the movement of uniform properties.
Ball bushing diameter calculation formula diameter = diameter + (2 * ball diameter)
Ball bushing work high precision, smooth operation, ideal for high repetition accuracy, fast response small machinery. This bearing provides load capacity up to 19lbf and is completely corrosion resistant. Available in 1mm ball size 5 * 7 * 10 Pore diameter 5mm, it has a coefficient of friction of only 0.001, low inertia, light weight, compact size, precision machined ball bearings with corrosion-resistant stainless steel.
Ball bushing in the mold parts on the use of examples
Steel Ball GB308-84 accuracy of 5 standard, used in high-precision axial or radial movement of uniform movement. Domestic manufacturers can also provide different standards based on different needs and non-standard ball sets.