摘要:
A dental handpiece (10) has a rotor (15) and a ball bearing assembly (13, 14) supporting the rotor (15). At least one of the ball bearing assemblies (13, 14) has a ball (20) and a retainer (21). The retainer (21) has at least one grease retaining groove (30, 50) or void (51) therein.
摘要:
A motion transmitting remote control assembly (10) comprising a conduit (12) having an inner surface slidably supporting a motion transmitting core element (16) and a coating of lubricant (28) on the core element (16) for reducing friction between the core element (16) and the inner surface of the conduit (12). The assembly (10) is characterized by an additive material (30) of phosphorous mixed with the lubricant (28) for visually determining the presence of lubricant (28) with ultra violet light (32) . The invention also includes a method of checking for the presence of a lubricant (28) on the core element (16) comprising the steps of mixing a lubricant (28) with a phosphorous material (30) , applying the mixture to the core element (16) and subjecting the core element (16) to ultra violet light conditions (32) to visually inspect for the coverage of lubricant (28) over the core element (16) .
摘要:
An end cap for a bicycle cable (11) of the type wherein an inner cable (12) slides within an outer casing (13) includes a housing (14) defining a hollow lubricant-filled chamber (22). The housing (14) has a first end (26) defining an opening (30) for receiving the inner cable (12) therethrough and a second end (34) adapted to fit to the outer casing (13) of the bicycle control cable (11). A first screen (72) screens the opening (30) at the first end (26) of the housing (14), wherein the first screen (72) is structured to rupture when the inner cable (72) is passed therethrough. A displaceable second screen (84) screens the second end (34) of the housing. A seal (46) is preferably disposed at the first end (26) of the housing (14). The seal (46) includes an annular seal member (64) defining an inner area (68), and the seal member (64) is sized to sealingly fit over the outer periphery of the inner cable (12) of the bicycle control cable (11).
摘要:
In the case of a shaft arrangement having a shaft (7) which extends within a casing (1) filled with a fluid and which can be actuated by means of a drive (8) from outwith the casing (1), the shaft (7) having on its outer peripheral surface a surface structure which conveys the fluid in a flow direction (30) in the longitudinal direction of the shaft during rotation, a sleeve (19) is provided according to the invention, which can rotate with the shaft and has at least one conveying element (20) for conveying the fluid in a counterflow direction opposite to the flow direction. As a result, a bubble-free conveyance of the fluid along the shaft (7) is facilitated.
摘要:
A wire wound flexible shaft has layers of wire wound one upon another, with a dry film of lubricant bonded to the outer surfaces of a number of the outer layers; or if desired, to the outer surfaces of all layers of the shaft. The lubricant is applied by preheating the partially completed flexible shaft to a temperature substantially above 212°F but below the decomposition temperature of the lubricant. A liquid medium comprising a carrier and particles of the lubricant is sprayed onto the shaft surface, causing the liquid to vaporize and the lubricant particles to be deposited on the shaft. One or more successive wire layers may then be wound onto the partially completed shaft and the spraying step repeated. Thereafter the shaft is heated to cause the lubricant particles to bond to the adjacent wire layers and to reduce internal stresses in the shaft.
摘要:
A method for fabricating a stranded cable (1) particularly for mechanical motion transmission, which cable is composed of multiple strands or wires (101,102,103), helically wound around a common longitudinal axis, including the steps of: a - winding the strands (101,102,103) that form the cable (1) in a helical arrangement around a common longitudinal axis, b - flattening and smoothing the exterior profile of the each strand (101,102,103) of the cable (1). Cable (1) produced by that method.
摘要:
A grease fed into a metering pressure feeder (22) from a grease tank (10) is accurately weighed to be fed into an injection cylinder (30) and the entire grease in the injection cylinder (30) is injected from a nozzle (34). The nozzle (34) can advance toward an electric motor (60) so as to, bring a first packing (50) and a second packing (52) at a front (34a) of the nozzle (34) into close contact with an outer ring (66a) and an inner ring (66b) of a bearing (66), respectively. When in this state the grease is injected from an injection hole (34b), it is forced into the working space of rolling elements (66c) of the bearing (66) and filled into a grease pocket (68).