| 摘要 |
<p>A bearing assembly (22) for a sign (10) having a rotatable panel (18) has a first cylindrical member (48) having an axial bore (26) in one end thereof the bore (26) defining a sleeve (74). The bore (26) communicates with an axial passage (30) which has a diameter less than that of a ball bearing (36) and constitutes a first seat for the ball bearing. There is a second cylindrical member (50) having a recess (52) in one end, the recess having a diameter greater than that of the ball bearing (36) and a depth less than that of the ball bearing (36), and constitutes a second seat (54) for the ball bearing. The first member (48) may be connected respectively to a panel (18) or the frame (12) of the sign (10) and the second member may be connected to the other of those two elements.</p> |
