摘要:
A dental handpiece (10) has a rotor (15) and a ball bearing assembly (14) supporting the rotor (15). The ball bearing assembly (14) has at least one ball (22). The bearing (14) has an inner (20) and an outer race (21), and the outer race (21) has an increased outer diameter.
摘要:
A dental handpiece (10) has a rotor (15) and a ball bearing assembly (14) supporting the rotor (15). The ball bearing assembly (14) has at least one ball (22). The bearing (14) has an inner (20) and an outer race (21), and the outer race (21) has an increased outer diameter.
摘要:
A dental handpiece (10) has a rotor (15) and a ball bearing assembly (14) supporting the rotor (15). The ball bearing assembly (14) has at least one ball (22). The bearing (14) has an inner (20) and an outer race (21), and the outer race (21) has an increased outer diameter.
摘要:
A dental handpiece (10) has a supporting rotor assembly (15) and ball bearings (13, 14) supporting the rotor. Each ball bearing (13, 14) has a plurality of balls (22). Each bearing (13, 14) has an inner race (20) and an outer race (21) and at least the outer race (21) has an increased outer diameter.
摘要:
Improvements in material-to-material connections are provided. For example, metal-to-metal connections are improved, such as the interface connection between a dental handpiece bur tube (10) and a component such as a bearing (12). At least one marking, such as a laser marking (20) is provided such that an amount of excavate material (21) is excavated from the marking (20). When a component such as a bearing (12) is positioned upon the bur tube (10), a portion of the excavate material (21) is physically impinged between the two components (10, 12) filling any spaces or gaps therebetween.
摘要:
A dental handpiece (10) has a supporting rotor assembly (15) and ball bearings (13, 14) supporting the rotor. Each ball bearing (13, 14) has a plurality of balls (22). Each bearing (13, 14) has an inner race (20) and an outer race (21) and at least the outer race (21) has an increased outer diameter.
摘要:
A dental handpiece (10) has a supporting rotor assembly (15) and ball bearings (13, 14) supporting the rotor. Each ball bearing (13, 14) has a plurality of balls (22). Each bearing (13, 14) has an inner race (20) and an outer race (21) and at least the outer race (21) has an increased outer diameter.
摘要:
A dual-string tension dynamometer (1) utilizes two strings (10, 11) wrapped around approximately ninety degrees of a test wheel (12). The lateral forces (E, F) are balanced such that the total lateral force net value is zero. The results reflect purely torsional loading.
摘要:
A dental handpiece (10) of the type having a body (11), a head (13) and a neck (12), is improved by having at least one portion of the handpiece (10) formed by metal injection molding or MIM. The use of MIM allows for improved fabrication and function. According to one aspect of the invention, the head (13) and neck (12) of the handpiece (10) are MIM-formed as a single or unitary piece.
摘要:
A dental handpiece having a distal end including an attachment for assembly of a removable workpiece and a handpiece body intermediate a proximal end and the distal end. The handpiece extends in a substantially axial direction. A coupler is included having a cylinder portion and a supply-end portion, the cylinder portion being assembled into the handpiece extending in the axial direction toward the distal end. The cylinder portion includes at least one seal that interfaces with an interior of the body so as to isolate a portion of the body interior into at least one distinct chamber. The supply-end portion of the coupler extends from the proximal end of the handpiece body at an angle from the axis. The supply-end portion also includes a plurality of outlets, the at least one distinct chamber in fluid communication with one of the outlets of the plurality of outlets.