1. A clamping device, comprising: a plurality of clamping element receptacles; at least one clamping element having a clamping jaw support and a clamping jaw connectable to said clamping jaw support, the clamping element held by each clamping element receptacle, wherein said clamping element receptacles have at least one inclination running obliquely to a clamping direction of said clamping device and by means of which said at least one clamping element is at least partially guided, a coupling having a first coupling part and a second coupling part that transmit a clamping force independently of one another and into a different clamping law support of a plurality of clamping jaw supports, and wherein said clamping jaw is connected to said clamping jaw support by engaging in an undercut provided on said clamping jaw support and is additionally fixed by a fixing means to said clamping jaw support wherein said clamping device is configured to connect to an adapter having an adapter side including bayonet mount parts, wherein said first coupling part and a second coupling part are coupleable to one another and wherein said coupling has bayonet mount parts for coupling to the bayonet mount parts of the adapter.
2. The clamping device according to claim 1, wherein said undercut of said clamping jaw support each absorbs clamping forces acting substantially parallel to said fixing means.
3. The clamping device according to claim 1, wherein said clamping jaws are designed substantially hook-like.
4. The clamping device according to claim 1, wherein said coupling parts are each connectable to the bayonet mount parts on said adapter side, wherein each bayonet mount part is independent of other bayonet mount parts provided for other coupling parts.
5. A clamping device, comprising: a plurality of clamping element receptacles; at least one clamping element having a clamping jaw support and a clamping jaw connectable to said clamping jaw support, the clamping element held by each clamping element receptacle, wherein said clamping element receptacles have at least one inclination running obliquely to a clamping direction of said clamping device and by means of which said at least one clamping element is at least partially guided; a coupling having coupling parts, each coupling part having a bayonet mount part, wherein said clamping jaw is connected to said clamping jaw support by engaging an undercut provided on said clamping jaw support and is fixed to said clamping jaw support by a fixing means, wherein said clamping jaws are designed substantially hook-like, and wherein said clamping device is configured to connect to an adapter having bayonet mount sections, wherein said coupling parts are designed such that they transmit a movement of said bayonet mount sections along said clamping direction to said clamping jaw support.
6. The clamping device according to claim 1, wherein an even number of said clamping element receptacles are provided.
7. The clamping device according to claim 6, wherein a plurality of clamping jaw supports can be driven in pairs to generate a clamping effect.
8. The clamping device according to claim 6, wherein a plurality of clamping jaw supports can be driven in total to generate a clamping effect.
9. The clamping device according to claim 1, wherein said clamping device has a basic element that is designed for the substantially immovable holding of counter-pieces to said clamping jaws on a front end facing a workpiece to be clamped.
10. The clamping device according to claim 9, wherein said basic element has a central recess for receiving said coupling parts, wherein said recess is closable by means of a cover piece.
11. The clamping device according to claim 1, wherein said clamping jaw is substantially arc-shaped, wherein a hook-like section is provided at an end of said arc-shaped jaw for engaging in said undercut of said clamping jaw support, wherein said hook-like section extends in a hook-part enclosed by said arc-shaped jaw.
12. The clamping device according to claim 11, wherein said hook-like section extends in a direction opposite to a course of said arc-shaped jaw.
13. The clamping device according to claim 5, wherein said undercut of said clamping jaw support absorbs clamping forces acting substantially parallel to said fixing means.
14. The clamping device according to claim 5, wherein said coupling parts are each connectable to the bayonet mount parts on said adapter side, wherein each bayonet mount part is independent of other bayonet mount parts provided for other coupling parts.
15. The clamping device according to claim 5, wherein an even number of said clamping element receptacles are provided.
16. The clamping device according to claim 15, wherein a plurality of clamping jaw supports can be driven in pairs to generate a clamping effect.
17. The clamping device according to claim 15, wherein a plurality of clamping jaw supports can be driven in total to generate a clamping effect.
18. The clamping device according to claim 5, wherein said clamping device has a basic element that is designed for the substantially immovable holding of counter-pieces to said clamping jaws on a front end facing a workpiece to be clamped.
19. The clamping device according to claim 18, wherein said basic element has a central recess for receiving said coupling parts, wherein said recess is closable by means of a cover piece.
20. The clamping device according to claim 5, wherein said clamping jaw is substantially arc-shaped, wherein a hook-like section is provided at an end of said arc-shaped jaw for engaging in said undercut of said clamping jaw support, wherein said hook-like section extends in a hook-part enclosed by said arc-shaped jaw.
21. The clamping device according to claim 20, wherein said hook-like section extends in a direction opposite to a course of said arc-shaped jaw.
22. The clamping device according to claim 1, wherein each coupling part is connectable to a different bayonet mount section that is independent of other bayonet mount sections provided for other coupling parts.
23. The clamping device according to claim 1, wherein at least one of the first coupling part and the second coupling part is designed such that it transmits a movement of the bayonet mount sections along the clamping direction to the clamping jaw support.
The claims below are in addition to those above.
All refrences to claims which appear below refer to the numbering after this setence.
1. A sintered metal bearing, which is obtained by compression-molding and sintering subsequent thereto of a raw-material powder containing a plurality of metal powders, and which includes therein a large number of pores capable of impregnating oil,
wherein the raw-material powder contains a Cu powder, an SUS powder, and a pure Fe powder, and respective containing rates of the Cu powder, the SUS powder, and the pure Fe powder with respect to the raw-material powder are adjusted as follows:
the Cu powder: 15 wt % or more and 60 wt % or less;
the SUS powder: 10 wt % or more and 35 wt % or less; and
the pure Fe powder: 20 wt % or more and 60 wt % or less.
2. A sintered metal bearing according to claim 1, wherein the raw-material powder further contains an Fe-phosphide powder.
3. A sintered metal bearing according to claim 2, wherein respective containing rates of the Cu powder, the SUS powder, the pure Fe powder, and the Fe-phosphide powder with respect to the raw-material powder are adjusted as follows: the Cu powder: 15 wt % or more and 60wt % or less; the SUS powder: 10 wt % or more and 30 wt % or less; the pure Fe powder: 20 wt % or more and 60 wt % or less; and the Fe-phosphide powder: 0.1 wt % or more and 2.0 wt % or less.
4. A sintered metal bearing according to claim 1, wherein the raw-material powder further contains a low-melting-point-metal powder.
5. A sintered metal bearing according to claim 4, wherein the low-melting-point-metal powder comprises an Sn powder.
6. A sintered metal bearing according to claim 4, wherein respective containing rates of the Cu powder, the SUS powder, the pure Fe powder, and the low-melting-point-metal powder with respect to the raw-material powder are adjusted as follows: the Cu powder: 15 wt % or more and 45 wt% or less; the SUS powder: 10 wt % or more and 30 wt% or less; the pure Fe powder: 20 wt % or more and 60 wt % or less; and the low-melting-point-metal powder: 0.5 wt % or more and 10 wt % or less.
7. A sintered metal bearing according to claim 1, wherein the raw-material powder further contains graphite.
8. A sintered metal bearing according to claim 1, which is obtained by sintering at a temperature lower than a melting point of Cu.
9. A sintered metal bearing according to claim 1, wherein a sintering density is adjusted within a range of 6.8 gcm3 or more and 7.3 gcm3 or less.
10. A sintered metal bearing according to claim 1, comprising a dynamic pressure generating portion for generating a dynamic pressure action of a fluid between the dynamic pressure generating portion and a shaft to be rotationally supported.
11. A fluid dynamic bearing device comprising the sintered metal bearing according to claim 1.