Roller-bearing unit for shaft of e.g. motor or generator - has gap filled with oil or elastomer between rim of inner and surface of outer section

摘要

The free end (12a) of the shaft turns in a roller bearing (16) whose outer ring is fixed to an inner section (18) of the bearing plate with a radially outward projection (18a). The outer section (22) has a corresp. recess (22a) with a gap (24) covered by an annular plate (26) and sealed with O-rings (28) above and below the gap (24). Another O-ring (30) is inserted between the radial surfaces of the inner and outer sections (18,22) to prevent leakage of fluid out of the gap. ADVANTAGE - Security of operation of motors or generators is achieved even in critical speed ranges.