This invention relates to cutting tools used to machine materials to produce new surfaces and chips of removed material. Embodiments of this invention allow round rotating cutting inserts to be used in a more economical way, with improved accuracy, with improved sealing, and with greater ease of use. The rotary support device and cutting inserts may be used in either radial or tangential mounting types of cutters. It also provides a built-in, fully sealed means of fine adjustment of the cutting insert that is useful in some applications.

This invention relates to simple, compact rotary seals that contract to maintain a seal as the sealing elements may wear over time. Embodiments of this invention allow simple elastic rings, such as an O-ring, to be used as the sealing element.

This invention relates to cutting tools used to machine materials to produce new surfaces and chips of removed material. Embodiments of this invention allow round rotating cutting inserts to be used in a more economical way, with improved accuracy, with improved sealing, and with greater ease of use. The rotary support device and cutting inserts may be used in either radial or tangential mounting types of cutters. It also provides a built-in, fully sealed means of fine adjustment of the cutting insert that is useful in some applications.

The invention relates to an axle arrangement (10) for mounting a tool or a workpiece. The axle arrangement (10) comprises a receiving unit (12) that is supported by a swivel bearing assembly (13) in a base body (11) so as to be rotatable about a longitudinal axis L. The receiving unit (12) has a receiving sleeve (18) that is supported so as to be immovable in longitudinal direction R parallel to the longitudinal axis L and has a gripper actuating element (23) that is supported so as to be slidable in the receiving sleeve (18) along the longitudinal axis L. On one end of the gripper actuating element (23) associated with the front end (18a) of the receiving sleeve (18), there is seated a gripper unit (24) for gripping the tool or the workpiece. The gripper unit (24) is pretensioned by a pretension unit (30) in a clamping position I. An actuatable release unit (34) can move the gripper unitcounter the pretension force FV of the pretension unit (30)into a release position II. By means of a support unit (48), an auxiliary bearing (49) that, in particular, is configured as an axial bearing, can be pressed against the receiving sleeve (18) in order to achieve an improved axial force support of the receiving unit (12) on the base body (11) and to reduce the load on the swivel bearing assembly (13) due to axial forces.