| 摘要 |
1454398 Combined brake and bearing assemblies SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 7 Nov 1973 [9 Nov 1972 28 Nov 1972] 51690/73 Headings F2E and F2A The brake disc or drum is integral with the inner ring of the wheel bearing. As shown, a brake disc 4 is integral with a flange part 3, to which a wheel part 7 is secured by bolts 8, and with an inner bearing ring 2 having a running surface 2A for two sets of spherical rolling elements 13 associated with a cage 14. An outer bearing ring 11 has a flange 12 for securing it to fixed shaft parts (not shown). The plane l of brake surface 4A of the disc 4 lies to the right or running surface 2A to permit unhindered grinding &c of surface 2A. Part of brake casing 9 is accommodated between wheel part 7 and disc 4. The integral structure has an inner strengthening flange 5 and is pierced by cooling openings 17. Resilient bearing-seals 15, 16, are fixed to outer ring 11. Bolt 8 has a structure enabling it to be introduced from outside, after which turning on it of the nut, not shown, expands the head 8A. In Fig. 3 (not shown) the disc is replaced by a brake drum, the plane of the drum edge lying to one side of the running surface of ring 22. The inner strengthening flange has bolt-holes and preferably key-ways or splines. In each case the integral structure may be made by hot or cold pressing from powder followed by heat treatment, or it may be made of forged or pressed steel surface-treated after manufacture. |
