Abstract: A bearing unit capable of withstanding a large axial force based on a simple structure including: a bearing 10 having an internal ring 13 fitted to an inside member 2, an outer ring 14 fitted to an outside member 6, lots of rolling elements 15 disposed between the outer ring 14 and the inner ring 13; and a transmitting direction shifting means A transmitting an axial force F from the inner ring 13 to the outside member 6 when the axial force F transmitted from the inside member 2 to the internal ring 13 exceeds a predetermined value or above, and a main spindle device of a machine tool, which is provided with the bearing unit, are provided.

Abstract: A chip discharge device for a machine tool is provided that has a simple structure, enables automatic replacement of tools, and is suitable for a machine tool in which a spindle head is turned about an axis of turning that is not parallel to the center axis of the spindle. A suction pipe 73 on the first support member side is disposed in parallel to a first axis of turning 191 to be centered on the axis of the through hole 192 of a first support member. A right end of the suction pipe 73 on the first support member side is fixed by bolts to a left end surface of the spindle head 18. An outer circumferential surface of the left end of the suction pipe 73 on the first support member side is connected to be able to relatively rotate to an inner circumferential surface at the lower end of a second communicating pipe 74. A seal mechanism 8 is provided in the connection portion, preventing the external air from being sucked into the second communicating pipe 74.

Abstract: A process for producing a liquid crystal display device comprising Smectic liquid crystal material, comprising: providing an LC panel comprising a pair of substrates; and filling the space between the pair of substrates with a Smectic liquid crystal material, while adjusting the liquid crystal molecular primary axis along with the pre-set or pre-designed alignment direction, and while adjusting the liquid crystal moving direction in the space between the pair of substrates at the filling of the Smectic liquid crystal material along with the pre-set alignment direction.

Abstract: A liquid crystal display panel embedded with pillar type of spacers comprising a photo reactive material, wherein the mechanical durability of the pillar type of spacers has at least 15.9 MPs of mechanical strength to the external pressing force.

Abstract: A method of injecting liquid crystal material, which is capable of efficiently injecting a liquid crystal material having a high viscosity at room temperature, such as smectic-phase liquid crystal material while maintaining a high throughput, a seal pattern that can be preferably used for the method, and an apparatus for injecting liquid crystal material.

Abstract: A machine-tool spindle device includes: a spindle; a front housing for rotatably supporting the spindle; a first drive motor having a first rotor installed securely on the spindle and a first stator installed securely within the front housing; a rear housing installed on a rear end side of the spindle in the front housing; a second drive motor having an annular second rotor which is disposed coaxially to the spindle near a rear end of the spindle and which is supported rotatably within the rear housing, and a second stator installed securely within the rear housing; a connecting mechanism for connecting the rear end of the spindle and the second rotor and releasing the connection; and a clamping mechanism, disposed within the attaching hole of the spindle and within the second rotor, for clamping a tool attached to the spindle.