摘要:
A cable lubrication device (10) for directing pressurized lubricant into the internal space of a control cable, the cable lubrication device having a main body tube (12), a locking ring (14), a plunger (16) and a spiral-cut seal (18).
摘要:
A lubricated spline joint (30) for providing a viscous damping function includes a first member (32) defining an internal spline (62), a second member (34) defining an external spline (64) engaged therewith, a seal ring (76) between the members (32, 34) at one end of the splines, and a radially inwardly facing chamber (80) at the other end which is exposed to lubrication fluid. The improvement features an internal barrier (84) for assuring a fixed internal radius R and thus a preselected centrifugal pressure head of the fluid mass (86) in the chamber (80) and about the splines, and a plurality of venting passages (94) located radially outwardly of the radius R for continually exhausting fluid from the splines as a result of centrifugal force so that fresh and/or less aerated fluid is circulated through the splines.
摘要:
An improved seal (10) for use in a universal joint (11) having an elastic seal ring (23) compressed between a pair of right circularly cylindrical sleeves (24, 25). The seal ring is bonded to the sleeves. The sleeves are adapted to have press-fitted relationship with association portions of the universal joint, such as the journal trunnion (12) and the bearing retainer (14). In one form, the elongated extent of the sleeves is parallel to the axis (15) of the journal trunnion (12) and in a modified form, the sleeves (124, 125) extend perpendicularly thereto. In each form, a portion of one of the sleeves is disposed adjacent the inner end of the needle bearings (22, 122) so as to limit axial movement thereof. The sleeves are bonded to the seal ring so as to preclude sliding movement therebetween while yet permitting limited axial play in the universal joint thereby to provide long troublefree life of the seal.
摘要:
A polymeric tubular control cable liner is provided. The polymeric tubular control cable liner includes a series of transverse lubricant retention cavities A projecting radially outwardly from its internal bearing surface. The lubricant retention cavities A facilitate improved lubrication and reduced sliding resistance against a force transmitting core (not included). The polymeric tubular control cable liner is manufactured by an extrusion process.
摘要:
A dental handpiece (10) of the type having a rotary member supported by at least one bearing assembly (13, 14), wherein said at least one bearing assembly (13, 14) has an annular retainer (21) and a plurality of balls (20) at least partially supported by said annular retainer (21), characterized in that the annular retainer (21) rollingly supporting the balls (20) within ball apertures (23) and having at least one hole, aperture, depression, detent, dimple, cut, void, or slice upon any external surface of said annular retainer (21) for providing a place for excess amounts of grease and facilitating the physical retention of grease in proximity to contacting parts.
摘要:
Helical members applied in flexshaft assemblies for retaining lubricant inside a flexshaft casing 22. The helical members have a helix that is opposite of a helix of wires that make up a flexible drive member. The helical members direct the lubricant away from an end of the flexshaft assembly that the helix of wires tends to direct the lubricant toward.