Abstract: A grommet includes two semicircular closing plate sections that protrude from inner peripheries of a larger diameter end of an enlarging diameter tubular section provided with a vehicle body latch recess. Two half ring sections protrude from peripheral edges of central circular cut-outs at opposed ends of the semicircular closing plate sections. Adhesive tape is wound around the half ring sections. The semicircular closing plate sections are thinner than the enlarging diameter tubular section and have bellows-like configurations with projections and depressions. The half ring sections deform in accordance with an outer diameter of the wire harness and a bending direction of the wire harness. Deformation of the semicircular closing plate sections is absorbed by the bellows-like configurations, and the vehicle body latch recess of the enlarging diameter tubular section coupled to an outer periphery of the semicircular closing plate sections.

Abstract: A metal member defining a hole in which the hole is reinforced by forming a flange and turning the flange back upon itself so that the rolled outer surface of the flange defines the perimeter of the hole. The sheared edge is spaced from the perimeter of the hole. The shaft of the fastener inserted in the hole contacts a non-sheared surface. A reinforcement ring may be assembled around the flange.

Abstract: A grommet includes an inner tube and an outer tube coupled to the inner tube by an annular coupling section. A slant wall section of the outer tube has a curved portion at a position having an outer diameter equal to an inner diameter of a through-hole in a vehicle body panel. The curved portion has a different inclination angle from the slant wall section. An inclination angle of the slant wall section at a larger diameter side with respect to the curved portion is set to be smaller than an inclination angle at a smaller diameter side with respect to the curved portion. The slant wall section is provided on an inner peripheral surface at the smaller diameter side with a bending stress absorbing portion of which an inner surface is recessed annularly to be a smaller thickness.

Abstract: Embodiments of the present invention resolve the safety and product management issues associated with conventional abrasive wheel bushings by, for example, reducing the opportunity for improperly mounting an abrasive wheel without the appropriate reducing bushing, simplifying the purchasing process, and/or reserving valuable SKU space for primary products. The abrasive wheel itself can be tailored to any number of purposes, such as grinding, cutting, and polishing. The bushing described herein can be used with any such abrasive wheels. The techniques could readily be extended to any arbor-based products that use reduction bushings or similar schemes.

Abstract: A grommet includes a body having a first wall and a second wall. A passageway extends from the first wall to the second wall, and a service port extends from a first end adjacent to the first wall to a second end adjacent to the second wall. A first cap is integral with the first wall and covers the first end of the service port. Similarly, a second cap is integral with the second wall and covers the second end of the service port.

Abstract: A bushing includes a bronze backing layer having a first axial end, a second axial end, and a central opening, the bushing having a cylindrical shape and a porous bronze layer. PTFE or other suitable low friction material is impregnated into the porous bronze layer at one of a radially inner or outer surface of the bushing. A PTFE or other suitable low friction material topical layer is disposed adjacent the impregnated layer. The bushing may optionally comprise a flange which also includes the bronze backing layer, the porous bronze and impregnated layer, and the topical layer on an axially inner or outer surface.

Abstract: Ductwork (1) for arranging at least one pipe through an opening (2) in a partitioning (3), including a flange (4) having an outer periphery area (5) and a central area (7) which is formed with a guide opening (8) for every pipe, the flange (4) being provided with a number of mounting apertures (11), the flange (4) having an inner side (9) and an outer side (10) opposite the inner side (9), where the inner side (9) is adapted for bearing against one side (6) of the partitioning, wherein the ductwork (1) further includes a connecting arrangement mounted in each mounting aperture (13), the connecting arrangement including force transmission means (15) with an operating member (22) disposed over the outer side (10) of the flange, and with a shank (17) extending through the mounting aperture (11), a clamping means (23) disposed on the shank (17) of the force transmission means and which is displaceable around and/or along the shank (17) by actuating the operating member (22), and an engagement arrangement (19) dis

Abstract: A sealing grommet, particularly for data centers and the like, formed of one or a pair of U-shaped frame sections, each co-molded with a thermoplastic elastomeric seal of corrugated wave form, with corrugated edges of the seals exposed at the open sides of the U-shaped frames. A pair of such grommet sections joined together, with the corrugated edges arranged to be in contact and in phase, provides a uniquely efficient seal to hold back air under pressure while allowing various pass-through elements, such as cables, hoses, etc., to be extended through the grommet and while enabling the pass-through elements to be easily added, removed, or rearranged as may be necessary to accommodate the dynamic changes experienced in the operation of a data center.

Abstract: A grommet includes a wire passage supporting a wire harness, a pinch-grip, and a connector. The pinch-grip is fixable to a vehicle body panel by pinching a peripheral edge of the panel surrounding a through-hole. The connector has an annular shape having a curved portion recessed to an inner periphery, the recessed portion extending in a peripheral direction. One end of the connector is joined to the wire passage and the other end is joined to the pinch-grip.

Abstract: A continuous composite fiberglass sucker rod for connection between a pump and a pump drive has a rectangular cross section. End fittings having a rod receiving cavity are connected to the rod ends using a curable adhesive. The rod fitting is maintained in a vertical position with the cavity facing upwardly. The rod end portion is positioned in the cavity with the end at the bottom of the cavity. Curable adhesive is introduced into the cavity. A centralizer bushing is used to maintain alignment of the rod relative to the cavity. A portable heating device receives the fitting and rod end portion and enhances the curing process.

Abstract: A cable mounting structure for an electric apparatus is provided which ensures sealing properties, such as waterproof properties and dustproof properties, and which can effectively contribute to downsizing, while easing restrictions on the size of a connecting tool mounted on one end of a cable connected to an electric apparatus body. The cable mounting structure comprises a housing (10) for accommodating an electric apparatus body, a cable (11) connected to the electric apparatus body via a second connector (12) or the like, a grommet (20) mounted on the cable (11), a recessed housing section (15) provided in the housing (10), and a lid (30) for closing the recessed housing section. The recessed housing section is formed in a closed-bottomed tubular shape recessed inwardly of the housing.

Abstract: A bushing for securing a grip to a firearm that includes a housing made from a resilient material and an insert made from a material having a hardness greater than the resilient material of the housing. The housing has a top end, a bottom end, a housing bore extending from the top end to the bottom end, and a contact surface that is configured to engage an internal surface of a receiver of the firearm. The insert is sized and shaped to be received within the housing bore and includes an insert bore configured for engagement with a fastener. The housing is configured to undergo elastic deformation when compressed between the insert and the internal surface of the receiver as the fastener is tightened to draw the insert toward the internal surface of the receiver.

Abstract: A grommet includes a small diameter tubular section and a large diameter tubular section contiguous with the small diameter tubular section. The large diameter tubular section is provided on the outer peripheral surface with a plurality of projecting portions that extend from a connecting part between both of the sections to a side wall of vehicle body engagement annular recess in an axial direction of the large diameter tubular section and are separated from one another in a peripheral direction of the large diameter tubular section. Each of the projecting portions includes an increasing diameter directing slant portion that extends from the proximal end point through the contact point to the bending point in parallel to the outer peripheral surface of the large diameter tubular section, and a decreasing diameter directing slant portion that extends from the bending point to the distal end point and inclines in a reversed slant direction.

Abstract: For facilitating mounting of a head section of a sleeve, which is used for guiding a line, in a mounting opening, a reinforcing part is provided. The reinforcing part is placed in the radial direction on the line only after the guiding-through of the line and the insertion of the head section in the mounting opening. The reinforcing part is divided at least into two mutually displaceable sections. After the placing of the reinforcing part on the line, the two sections of the reinforcing part are guided together. Subsequently, the reinforcing part is inserted in the axial direction into the head section of the sleeve. By use of the reinforcing part, the sealing effect of the sleeve is improved, and a twisting of the sleeve in the mounting opening is prevented.

Abstract: An aircraft interior bushing is disclosed comprising in one form interoperating bushing portions. Each bushing portion in one form comprising a recessing portion, a radially inner surface operably configured to contact a surface defining a void in a panel, a perimeter portion wherein the perimeter portion is substantially larger than the recessing portion, a support arm receiver, and a support arm. Each support arm comprises a first end coupled to the bushing, and a second end comprising a conduit receiver. In one form, the bushing assembly is operably configured to support a conduit at a distance from the radially inner surface of the interoperating bushings to substantially prohibit contact between the conduit and the bushing assembly once the conduit is installed and fixed to the conduit receiver.

Abstract: Apparatus and methods provide for a bushing that compensates for thermal expansion and contraction to maintain a preload on a corresponding structure at various operating temperatures. According to embodiments described herein, a bushing may include two bushing components coupled to a load compensation sleeve between the two bushing components. The load compensation sleeve may have a coefficient of thermal expansion (CTE) greater than the two bushing components and the corresponding abutting structure. The configuration of the bushing components and load compensation sleeve, along with the corresponding CTE characteristics, maintains the preload imposed by the two bushing components on the structure throughout operations at various temperatures.

Abstract: Disclosed herein are embodiments of an electrical wiring grommet. In one aspect, an electrical wiring grommet includes a body mounting portion, a closure panel mounting portion and a flexible conduit portion extending between the body mounting portion and the closure panel mounting portion. The flexible conduit portion includes a longitudinally extending body contact segment having a circumference, the circumference having a first circumferential portion and a second circumferential portion. The first circumferential portion includes a corrugated surface having a plurality of ridges with a first ridge height, and the second circumferential portion includes a corrugated surface having a plurality of ridges with a second ridge height less than the first ridge height.

Abstract: A raceway bushing which has a substantially cylindrical peripheral wall that forms a bushing inner surface and a bushing outer surface, a bottom wall which extends from the peripheral wall and has an inner bottom surface and an outer bottom surface, and a bottom opening configured in the bottom wall. The bottom opening is bordered by an annular collar that rises axially beyond the inner bottom surface.

Abstract: The present invention provides an electrical feed-through (200) for making a durable and reliable electrical connection through a wall (227) of a vacuum chamber (225). The electrical feed-through (200) comprises a tubular member having an open end (217) and a closed end (219). At least one conductor (201) extends through the closed end (217) and is fixed thereto by a vacuum sealing joint (214). The joint (214) is arranged so that it is not in line-of-sight from the open end (217). In this way impinging elements (220) and direct heat radiation (221) is prevented from directly reaching the joint (214), thereby extending the time it takes for contamination of the joint (214) to cause problems.

Abstract: A bushing is disclosed for pivotally mounting a damper in ductwork of the type generally used with heating, ventilation, and air conditioning (HVAC) systems. The bushing is a circular shaped member of silicone rubber material, which is particularly configured and dimensioned to provide an airtight fit with the ductwork to prevent loss of conditioned air at the pivot location, without compromising the rotational capability of the damper to alter the direction of the conditioned air. The bushing is dimensioned to be inserted into the ductwork and includes a peripheral groove which receives the ductwork in a manner which compresses the inner surface of the groove to provide the airtight seal. The bushing also includes a longitudinally tapered square central opening, which opening is dimensioned to engageably receive the damper pivot rod snugly to provide additional sealing at the interface between the bushing and the pivot rod.

Abstract: A bushing assembly includes a washer that includes an opening defined therethrough. A cylindrical body includes a first end that is sized to be inserted within the washer opening and an opposite second end. The cylindrical body is fabricated from a smart material that is configured to selectively expand when at least a portion of the body is positioned within the washer opening.

Abstract: A grommet device and method of using a grommet device is provided. The device includes a base structure having a base surface and a top structure having a top surface. A middle portion is connected between the top structure and the base structure, wherein an aperture is positioned through the middle portion, the aperture having an interior space defined by an aperture sidewall extending from the base surface to the top surface. A protruding structure is affixed to a portion of the aperture sidewall at a first end and extending towards a central axis of the aperture along a protrusion axis, wherein the protrusion axis is substantially aligned with a length of the protruding structure from the first end to the second end, and wherein a second end of the protruding structure is flexibly movable in at least one direction substantially perpendicular to the protrusion axis.

Abstract: A bushing assembly including a first bushing element, a second bushing element, and a locking subsystem. The first bushing element has a first end, a second end, a first outer surface with a first outer diameter, a first inner surface defining a first channel, and a first flange positioned proximate the first. The second bushing element has a first end, a second end, a second inner surface having a second inner diameter greater than the first outer diameter, a second outer surface, and a second flange positioned proximate the second end. The second inner surface defines a second channel that receives a portion of the first bushing element. The locking subsystem is proximate the first end of the first bushing element and secures the first bushing element to the second bushing element.

Abstract: A method and apparatus comprising providing a temporary or permanent connection of one or multiple sheets of material and providing an attachment point to hold these materials. A mating two part base and cap connected by a central tube connector that securely sandwiches sheet material between the two. The base may have additional passthrough holes for affixation to supports or ground. The connector may be threaded or frictionally attached and may optionally have thumb wings for easy turning. The connector may have one or more wings for easy manipulation. The connector may also be configured to receive various staking means including ones with eyelits or other attachment points and have pass throughs for stable engagement to other structures.

Abstract: An article of manufacture to retrofit a mounting bolt into an enlarged bracket bolt hole defined by an enlarged bracket bolt hole diameter in a mounting bracket includes a main body defined by a first side and a second side, a main body diameter, and a main body height. The article includes a hub extending from the second side of the main body, the hub being defined by a hub diameter and a hub height. The hub diameter is less than the main body diameter, and the hub diameter is selected to fit within the enlarged bracket bolt hole diameter and to provide a total clearance between the hub and the enlarged bracket bolt hole of less than 0.05 inches. The article further includes a bushing bolt hole opening defined through the main body and the hub, and a land defined on the first side of the main body.

Abstract: A grommet device for use with a medical instrument sterilization tray is provided. The grommet device includes a base structure having a base surface. A top structure has a top surface, wherein the top structure is connected to the base structure with a middle portion. An aperture is connected between the base surface and the top surface, and positioned within the base structure, the top structure, and the middle portion. A pull-tab is connected to the top structure.

Abstract: A grommet includes an inner tube, an outer tube coupled through an annular coupling section to the inner tube and provided with a slant wall section. The outer tube is provided on a larger diameter end of the slant wall section with a larger thickness portion and an annular latch recess between the larger diameter end of the slant wall section and the larger thickness portion. The slant wall section has a plurality of stepped projecting ribs that extend radially from a smaller diameter end of the slant wall section to the larger diameter end. Each of the projecting ribs is provided on a stepped top surface with a first slant surface that is inclined down to the side surface end of the latch recess, and is provided on both side surfaces with a second slant surface and a third slant surface that are inclined down from the top surface across the first slant surface. The first, second, and third slant surfaces form a three- side-cut-away portion.

Abstract: Bush to be arranged between two fitting elements for passing through cables, lines or the like in protected fashion, comprising an elongate, hose-shaped bush body (10) with a substantially linearly running central section (11) and heads (12, 13) at the ends, wherein the heads (12, 13) form a first inner circumferential face (20) at their open ends and a latching device (14, 15) for knocking the bush into installation openings in the fitting elements (M) is formed on each of the heads (12, 13) and integrally therewith, which latching device has a circumferential web (16) with at least one latching hook (17), which is formed thereon and has at least one radially outer latching tab (18), wherein the web forms a second inner circumferential face (19) opposite the latching tab (18), characterized in that the bush body (11) is formed from rubber and the latching devices (14, 15); are formed from hard-elastic plastic, and in that at least one of the second inner circumferential faces (19) is configured in such a way

Abstract: A pallet protector unitarily formed as a molded plastic part reinforces a wooden pallet. Its faceplate is nailed or screwed to the front and optionally the back face and side faces of the pallet. The protector has entry openings for the tines of a forklift and the openings are articulated into hollow collars that extend into the pallets inner regions. These collars provide a structure that accepts the weight and moment between the tines and the pallet and spread it across of the entire front of the pallet. RFID modules can also be included.

Abstract: A pallet protector unitarily formed as a molded plastic part reinforces a wooden pallet. Its faceplate is nailed or screwed to the front and optionally the back face and side faces of the pallet. The protector has entry openings for the tines of a forklift and the openings are articulated into hollow collars that extend into the pallets inner regions. These collars provide a structure that accepts the weight and moment between the tines and the pallet and spread it across of the entire front of the pallet. RFID modules can also be included.

Abstract: An improved hose clamp having an annular band having an inner face, tensioning means, and an annular spring liner; the spring liner having a circumferential shoulder near an edge of the liner; and a central, cylindrical, rippled, contact portion of smaller circumference than the shoulder, and of smaller width than the inner face of the band. The shoulder is adapted to abut the inner face and the contact portion is adapted to contact a hose or other article to be clamped. The ripples may be symmetric, for example, sinusoidal, or asymmetric, such as saw-tooth shaped.

Abstract: The invention relates to a connector device for a retainer device (2) on a cover of an openable vehicle roof on an operating mechanism, in particular, on an operating lever (3) with a bearing pin (4), comprising a mid axis (104), about which the operating lever (3) is mounted to pivot relative to the cover, characterized in that the bearing pin (4) is mounted to rotate relative to the operating lever (3) and has a housing device (10, 13) for the retainer device (2) in a region facing the a vehicle inner side (111), wherein the retainer device (2) is connected with fixing means (22) to the housing device (10, 13) in an axially and rotationally fixed manner relative to the bearing pin (4).

Abstract: A clamping assembly for permitting passage of an elongated member through a wall. The clamping assembly includes a first clamping member and a second clamping member. The first clamping member includes a first arm extending outwardly from a first central portion of the first clamping member. The second clamping member includes a second arm extending outwardly from a second central portion of the second clamping member. The second clamping member is configured to be removably engaged with the first clamping member, such that the first arm and the second arm define an opening for permitting passage of the elongated member.

Abstract: A grommet is provided which can reduce an insertion load without decreasing a disengagement load of an inserting member. The inserting member, having a leg portion and a head portion formed by increasing the diameter of a tip end of the leg portion, is inserted from one end side of a body portion of the grommet into an insertion hole and attached to an inserted member with the grommet interposed. On the one end side from a groove portion formed in an outer circumferential surface of the body portion, a diameter of the insertion hole is equal to or larger than a diameter of the head portion. On the other end side from the groove portion, the grommet has a small diameter portion in which a diameter of the insertion hole is smaller than the diameter of the head portion and is equal to or larger than a diameter of the leg portion.

Abstract: A clamp is for clamping a first member to a second member. The clamp comprises a lever that is rotatably coupled to the first member and a plunger. The lever comprises a handle and a cam that rotate together about a rotational axis. Rotation of the lever about the axis in a first direction cams the plunger towards the second member to couple the first and second members together and wherein rotation of the lever about the axis in a second, opposite direction cams the plunger away from the second member to uncouple the first and second members from each other.

Abstract: A positionable hinge includes a first section and a second section. The first section includes a first leaf and a first hinge barrel secured thereto. The first hinge barrel has a first barrel surface. The second section also includes a second leaf and a second hinge barrel secured thereto. Each of the first and second barrel have barrel surfaces at an interface. These barrel surfaces are opposed textured mating surfaces that allow the hinge to be held in place in any desired position.

Abstract: A sleeve installation for a penetration in a panel may include a sleeve and a sleeve lock assembly. The sleeve may have an outer sleeve surface and may extend at least partially into the penetration in the panel. The sleeve lock assembly may be mounted to the sleeve and may include a female ring member, a male ring member, and an annular locking member. The female ring member may include a threaded interior portion and an annular lip. The annular lip may include an annular ramp surface. The male ring member may have an axial flange and a radial flange extending outwardly from the axial flange. The axial flange may have an annular end face and a threaded exterior portion for engaging the threaded interior portion of the female ring member. The locking member may have opposing ends defining a gap therebetween. The locking member may include a central band and at least one annular gripping flange having a gripping edge to engage the outer sleeve surface.

Abstract: The invention relates to a device (1) for feeding one or more lines through an opening in a wall or a floor, comprising a frame (2) arranged in the opening, wherein the frame (2) forms one or more feed-through openings (3), which can be closed by means of one or more covers (6), and wherein brush bristles (11) are reversibly attached by attachment means to the inner wall (9) that forms the inner edge (4) of the feed-through opening (3), wherein the brush bristles (11) are arranged in such a way that the brush bristles cover the feed-through opening (3).

Abstract: In a grommet fitted around a wire harness wired in a vehicle, and mounted in a through hole of a vehicle body panel, a radially outward extending portion is provided on an outer peripheral surface at an end of a small diameter cylinder portion, in which the wire harness is tightly inserted. A large diameter cylinder portion is connected to an outer peripheral end of the radially outward extending portion. An annular stretchable portion is provided at a portion connecting the small diameter cylinder portion to the radially outward extending portion. A step is provided on an inner peripheral surface at a boundary position between the small diameter cylinder portion and the stretchable portion, such that a thickness of the stretchable portion is thinner than a thickness of the small diameter cylinder portion. An annular rib is provided on an outer peripheral surface of the boundary position.

Abstract: A grommet includes a smaller diameter tubular section, an increasing diameter tubular section, and a larger diameter tubular section. The smaller diameter tubular section is connected through the increasing diameter tubular section to the larger diameter tubular section in an axial direction. A U-shape folded portion is provided on a connecting portion (a middle diameter tubular section) between the smaller diameter tubular section and the increasing diameter tubular section. A flap section that spreads conically toward the increasing diameter tubular section is provided on an outer periphery of the smaller diameter tubular section or an outer periphery of the folded portion. The folded portion is stretched straightly when the grommet is inserted into a through-hole.

Abstract: The invention concerns an interference fit comprising a carrier and at least one stepped bushing seated with an interference fit on the carrier. The stepped bushing is made by shaping a sheet metal and is characterized by a special wall thickness configuration. Through this wall thickness configuration, it becomes possible to assure that the stepped bushing conforms to close shape tolerances in the pressed-in state in regions of functional relevance.

Abstract: A portal and method facilitate routing and holding at least one electrical cable having a plug end. The portal may include a body which fits into a hole in a mounting surface and has a cable opening therein. A closure member moves between a closed position and an open position relative to the cable opening. A retainer movably mounted to the closure member confines the cable in a desired position to inhibit the plug end from moving back toward the interior of the portal body and to permit the plug end to be pulled substantially freely away from the body.

Abstract: A clamping bushing which, due to the particular eccentric geometry and composite materials used to manufacture the same, comprising elastomers (14, 15) and metal sheets (10, 11), is suitable for the reduction of principally vertically acting vibrations and structure-borne sound which can arise in machines/gearboxes and, in particular, in wind turbines.

Abstract: A bushing has a body with a cylindrical shape, an axis, and a plurality of dimples formed in the body extending in a radial direction with respect to the axis. The body is electrically conductive. A sliding layer that is electrically non-conductive is formed on at least a portion of the body. A coating that is electrically non-conductive is formed on at least a portion of the body. The bushing has an uninstalled configuration where the bushing is electrically non-conductive, and an installed configuration where the bushing is electrically conductive.

Abstract: A box for shipping and dispensing a welding wire wound into a generally cylindrical mass having a cylindrical core cavity concentric with a vertical axis. The box has four sidewalls with an integral generally triangular flap where at least one of the flaps has an upper generally square crown section with a wire outlet opening. The flaps have a folded down position wherein they overlap each other in a flat plane above the wire mass and an assembled up position defining a four sided pyramid shaped tent above the wire mass, with the crown section assembled in a plane generally parallel to the flat plane and at least 6.0 inches above the flat plane with the wire outlet opening aligned with the axis.

Abstract: An integration ring is configured to interconnect two components, such as an exhaust manifold and a turbine housing. The integration ring may include an outer wall and an inner wall spaced apart from one another. A spacer may be positioned between the inner wall and outer wall. A first and second pocket may be formed between the inner and outer walls.

Abstract: A grommet (10) for use with the face or web of a component such as sheet material for protecting the surface of articles passing through apertures formed in said component, said grommet comprising a generally cylindrical main wall portion (12) having adjacent one axial end thereof an outwardly extending lip portion(14), said main wall portion including a plurality of axially directed resilient fingers (24), at least some of said fingers having means (26) for resisting disengagement of said grommet from said component.

Abstract: A bearing plate assembly for a turbine engine fuel injector includes a bearing plate 30, with an opening 80 bordered by a race 82. A swivel ball 90 nests inside the race and is rotatable relative thereto. A lock, which may be a tip bushing 108 resists disengagement of the swivel ball from the race. A fuel injector nozzle 38 extends through an opening 98 in the swivel ball. During engine operation, the ball can swivel inside the race to accommodate rotational movement of the nozzle about lateral and radial axes.

Abstract: A single, integral piece configured into a self-coupling bushing for pivotally securing within a circular opening of a structure without external fasteners, while accommodating a polygonal shaft. The bushing includes a base that is larger than the opening of the structure, and an aperture within the base. The aperture of the base of the bushing has a perimeter that includes first members for lining the opening of the structure, and pivotally securing the bushing within the opening, and second members for absorbing a rotational torque of the shaft, enabling the first members of the bushing to securely pivot within the opening of the structure.

Abstract: A plug plugs into a ROV drive bucket limiting rotation of a drive shaft therein to say 15° and reducing the build-up of marine growth in the bucket. As shown it includes a polyethylene body (which may be made in two parts 12, 13) housing a metal socket 11 mounted for limited angular orientation therein. The socket has a twenty four point aperture or recess (22) which fits over a squared end of a drive shaft 10 at various angles orientation. The socket has external splines (20) which fit loosely in wide internal grooves (21) in the body and self-orientates within the body when the body is plugged into the bucket. The plug has a pair of diametrically opposite dogs (4) which engage in slots (5), included in flanges on conventional buckets.