| 摘要 |
The housing comprises extraction bolt holes (4F) and bolts (7) passing axially through a wedge-shaped ring (4). The bolt front ends (7) force against the end of the other ring wedge (5) pushing the two wedge-shaped rings (4,5) apart. Ringed grooves (2D,3D) are incorporated within an axial middle zone of the outer circumferential surface of one inner ring (2), and the inner surface of one outer ring (3). The circular groove (2D) forms stepped sections (K,L) between it and the two sides of the ring-shaped groove (2D) coned surfaces (2B,2C). Likewise, the ring-shaped groove (3D) forms stepped sections (K',L') between it and the coned surfaces (3B,3C) on both sides of the ring shaped groove. Flange-like retaining sections (4D,4E,5D,5E) are formed on or near to the opposite ends of the wedge rings.
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