LUBRICATING DEVICE OF ROLLING BEARING

申请公布号：

JP2008082499(A)

申请号：

JP20060265377

申请日期：

2006.09.28

申请公布日期：

2008.04.10

申请人：

NTN CORP

发明人：

NOJIMA SUSUMU

分类号：

F16C33/66;B23Q11/12;F16C19/26;F16C33/58

主分类号：

F16C33/66

摘要：

PROBLEM TO BE SOLVED: To provide a lubricating device of a rolling bearing capable of supplying lubricating oil that also capable of cooling the bearing, capable of stably supplying the lubricating oil by micro amount as a lubricating oil inflow clearance is maintained constant even if an inner ring and an outer ring are misaligned in an axial direction and thus capable of reducing agitation resistance and shaft driving torque and capable of preventing lubrication shortage. SOLUTION: A circumference groove 6 is provided along a corner part of a width surface and an outer diameter surface of the inner ring 2 of the rolling bearing 1. A nozzle 8 for discharging the lubricating oil into the circumference groove 6 is provided at a lubricating oil introduction member 7 adjoining the outer ring 3. An outer diameter inclined surface 2c of which diameter becomes larger to a raceway surface 2a side is provided between an opening edge of the circumference groove 6 and the raceway surface 2a in the outer diameter surface of the inner ring 2. A lubricating oil introducing ring 12 fitting with this outer diameter inclined surface 2c and extending out to an outer peripheral of the circumference groove 6 is provided. An inflow clearanceδfor flowing the lubricating oil in the circumference groove 6 into the bearing 1 is provided between the lubricating oil introducing ring 12 and the outer diameter inclined surface 2c of the inner ring 2. COPYRIGHT: (C)2008,JPO&INPIT