Abstract: An assembly tool for assembly of a window pane in a window frame of a vehicle is provided. The assembly tool includes a tool body with a support for supporting and holding the tool body on a first edge of the window pane and a tool arm extending along a longitudinal axis. A distal end of the tool arm includes a distance gauge extending transversely to the longitudinal axis of the tool arm and configured to be inserted between a second, guided edge of the window pane and a pane guide part which guides the guided edge of the window pane within the window frame. The assembly tool also includes a push arm that is displaceable relative to the tool body and configured to clamp the tool body between the first edge of the window pane and a frame part of the window frame. The push arm is actuated by external force.

Abstract: A tool for retracting pistons into cylinder bores is disclosed. A plurality of centering cones are provided to engage with a multitude of piston sizes and configurations. A user selects an appropriately sized centering cone and engages the selected centering cone with a spring loaded distal pusher portion of said tool. A female threaded collar and spreader plate combination receives a male threaded thrust bolt. The male threaded thrust bolt carries the spring loaded distal pusher portion. The spreader plate is pressed against a face of the caliper assembly, and rotation of the male threaded thrust bolt by a driver, such as a ratchet wrench or impact gun, applies inward and rotating forces from the spring loaded distal pusher portion of said tool to the piston, while separating the spring loaded distal pusher portion of said tool from the spreader plate.

Abstract: A locking grip extraction tool has plier handles with jaws having sharp beveled edges for moving in a direction so that an axis perpendicular to the plane of movement is oriented at an acute angle to the handles; the axis intersecting the plane of jaw movement at a point midway between the jaws. A locking link coupled to the handles is adapted to releasably lock the jaws onto an orthopedic implant. A connection rod can be threaded into a hole in one of the handles near the jaws, so that a force applying tool such as a slap hammer can be connected to the rod to apply force to remove the implant. The rod is in alignment with the axis, which alignment makes it easier to remove the implant.

Abstract: Aspects of the disclosure relate to an engine support system and method. The engine support system includes a frame mounted engine support and at least one engine mounted coupler. The engine support includes a frame mount with a telescoping body and opposing arms to releasably engage a frame of a vehicle, and at least one jack assembly. Each jack assembly includes a collar coupled to and horizontally movable along the telescoping body, and a jack rod coupled to and vertically movable relative to the collar. The jack rod includes a ball mount configured to insert into the coupler at an underside of an engine block of the vehicle. Each jack assembly is configured to support and/or lift the engine block relative to the vehicle frame by vertical movement of the ball mount into the coupler and relative to the frame mount engaged with the vehicle frame.

Abstract: A bushing installation tool having a plurality of spacer rods with first and second ends and a pressure plate mounted to the first ends of the spacer rods. A first base includes portions configured to engage an end of a cylindrical bushing and to restrain radial expansion of a cylindrical bushing received. The bushing installation tool has a first stage in which the first base being releasably engage with the second ends of the spacer rods. A second base including portions configured to engage the end of the cylindrical bushing and to permit radial expansion of the cylindrical bushing engaged therewith. The second base also including portions configured to releasably engage the second ends of the spacer rods and being alternatively interchangeable with the first base. The bushing installation tool includes a second stage in which the second base is releasably engaged with the second ends of the spacer rods.

Abstract: A mounting element for a dental prosthesis, the prosthesis including at least one bridge, the mounting element and prosthesis being formed using 3D printing, where the mounting element has an axis of elongation and comprises an engagement portion, for fixedly engaging the prosthesis and an attachment portion, for enabling secure attachment of the prosthesis to the jig during machining, the mounting element further comprises a registration portion for aligning, in use, the prosthesis in a precise position and/or orientation on a jig during machining, the registration portion comprises a tapering portion having a conically tapering outer surface.

Abstract: A coupling device for coupling flanges of two pipes includes a chain assembly and a positioning mechanism. The chain assembly includes plural connecting pieces pivotally connected one by one by pivot members. The connecting pieces at two opposite ends of the chain assembly are defined as a first connecting piece and a second connecting piece. A first pivot member is arranged at the free end of the first connecting piece, and a second pivot member is arranged at the free end of the second connecting piece. The positioning mechanism includes a first portion and a second portion pivotally connected. The first portion is pivotally connected to the first pivot member or the first connecting piece, and the second portion is detachably positioned to the second pivot member. The first portion is rotatable between a release position and a fixed position relative to the second portion.

Abstract: A tool to manage flanges during installation and dismantling of flanges includes a first ring support structure and a second ring support structure spaced apart along a tool axis. First and second mechanical arms are retained on the first and second ring support structures. Each of the mechanical arms has an extendible arm joint that is operable to adjust an axial distance between the first and second ring support structures. A guide shaft is coupled to the first and second ring support structures. The guide shaft is positioned to guide a relative movement between the first and second ring support structures during operation of the extendible arm joints of the first and second mechanical arms.

Abstract: A tool includes an operative rod, a guiding rod, a conveying screw and two detaching elements. The guiding rod includes a middle section connected to the operative rod and two terminal sections extending from the middle section. The conveying screw includes two threaded sections. Threads of the threaded sections extend in opposite directions. Each of the detaching elements includes a fixing aperture and a screw hole. The fixing aperture receives a corresponding one of the terminal sections of the guiding rod. The screw hole receives a corresponding one of the threaded sections of the conveying screw. Thus, the detaching elements are moved toward each other when the conveying screw is rotated in a first direction and that the detaching elements are moved from each other when the conveying screw is rotated in a second direction.

Abstract: A hub removal assembly for disengaging a hub stuck to an axle. The hub removal assembly includes a rectangular bar having a central sinkhole. An elongated lead screw having a proximal end and a distal end. The proximal end of the lead screw is transversely screwed into the central sinkhole. The distal end of the elongated lead screw is configured as a head that can be turned by a pneumatic tool.

Abstract: A locking grip extraction tool has plier handles with jaws having sharp beveled edges for moving in a direction so that an axis perpendicular to the plane of movement is oriented at an acute angle to the handles; the axis intersecting the plane of jaw movement at a point midway between the jaws. A locking link coupled to the handles is adapted to releasably lock the jaws onto an orthopedic implant. A connection rod can be threaded into a hole in one of the handles near the jaws, so that a force applying tool such as a slap hammer can be connected to the rod to apply force to remove the implant. The rod is in alignment with the axis, which alignment makes it easier to remove the implant.

Abstract: An improved insertion tool for placing/removing objects in a pressurized vessel, the object mounted on an elongate object-holder of a tool attached to the pressurized vessel, the insertion tool including (a) one or more elongate guides each having a distal end and a proximal end, (b) a retractor assembly attached to the proximal end of the elongate guides, (c) a top-plate assembly attached to the distal end of the elongate guides, and (d) a travel-plate assembly slidably mounted to the elongate guides and configured to be attached to the elongate object-holder and moved along the elongate guides by the retractor assembly, the improvement comprising: the retractor assembly includes a removable link block configured to be removably attached to a body of the connection tool, the link block configured to thereafter be removably mounted in the retractor assembly with no degrees-of-freedom of movement while mounted in the retractor assembly.

Abstract: The jacking system and method for using it to lower an upper column section without the use of a crane is provided. The jacking system is configured to be disposed on a roof of a cold box module and may include: a structural assembly; and a plurality of suspension rods supported at an upper end by the structural assembly, wherein the plurality of suspension rods is configured to provide support to the upper column section.

Abstract: An adjustment system for a fastener pulling head is provided that includes a swivel adapter configured for engagement with a proximal end portion of a drawbolt body of the pulling head, the swivel adapter defining an internal bore. A cap screw is disposed within the internal bore of the swivel adapter and configured to threadably engage the drawbolt body, and a set screw is configured to engage and secure the swivel adapter within the drawbolt body. The set screw is tightened in order to install or remove the fastener pulling head from a power tool. Once installed on the power tool, the set screw is disengaged from the swivel adapter, the pulling head can be rotated, which causes the frame to move relative to the drawbolt body within the pulling head to adjust a jaw gripping force.

Abstract: A maintenance tool for a planetary gear comprises a force generating device (101) comprising an actuator (102) for fastening to an end of a planet wheel pin of the planetary gear and for directing axial force to the planet wheel pin, and a body structure (104) for mechanically supporting a frame of the force generating device with respect to the planet carrier of the planetary gear so as to allow the actuator to move the planet wheel pin axially with respect to the planet carrier. In many cases, the maintenance tool enables removal of a planet wheel pin and installing, the same or another planet wheel pin at an operating site of the planetary gear. Thus, there is no need to move the planetary gear away from its operating site, e.g. a nacelle of a wind power plant, for maintenance work comprising removal of one or more planet wheel pins.

Abstract: A replacement tool removes an old bushing or installs a new bushing in a driveshaft yoke. A fixture has a guide chamber facing a bushing bore and a first threaded passage. A traveler mounted in the fixture has a plunger received in the guide chamber and a socket that holds the bushing. The plunger has a second threaded passage aligned with the first passage and having a smaller diameter. A set screw can lock the bushing into the socket. A removal bolt with a shaft matching the second passage is inserted through both passages. Turning of the removal bolt retracts the traveler and extracts the bushing. The tool is reconfigured with an installation bolt in the first passage only. A push plug is placed in the guide chamber to transfer force from the installation bolt to the plunger during turning of the installation bolt to press fit a new bushing.

Abstract: A differential gear set assembling method includes: a pivoting step of closing openings by guide portion and pivoting a pair of pinions between a pair of side gears; and an insertion step of inserting a pinion shaft into a pair of case shaft holes and a pair of pinion shaft holes from outside the differential case. The pivoting step is performed in a state where projecting portions are buried in the guide portions. The insertion step is performed in a state where the projecting portions are projected from the guide portions toward the pair of side gears, and the pair of side gears are pressed by the projecting portions so as to apply loads against biasing forces of coned disc springs to the pair of side gears.

Abstract: A system for moving loads including a cargo compartment floor into which there is integrated at least one roller conveyor permitting displacement of a load in a direction parallel to a surface of said cargo compartment floor. The system also comprises a transport vehicle comprising a drive system and a platform movable between a first operating position and a second operating position. In its first operating position, the platform is arranged such that the transport vehicle is positionable under a load which is supported on the roller conveyor integrated into the cargo compartment floor. In its second operating position, the platform is arranged such that the load is entrained when a movement of the transport vehicle occurs in a direction parallel to the surface of the cargo compartment floor, and is displaced on the roller conveyor integrated into said cargo compartment floor.

Abstract: Reactor installation tools and methods for installing reactor components in a reactor tube are described herein. A reactor installation tool can include a releasable attachment assembly for securing the tool to a reactor or support for holding reactor components. The tool can include a movable cylinder that can be actuated to engage and push on a reactor component in an interior region of the reactor for positioning the contents of the reactor in a desired location. The tool can further include means for supply blasts of compressed gas to an interior region of the reactor to aid in the expansion and positioning of the reactor contents. A skirt seal can be used to ensure that the blasts of compressed gas are contained in the interior region of the reactor.

Abstract: A hub nut caulking apparatus docked on an axle assembly includes a position setting guider to set a caulking position of a hub nut when the hub nut caulking apparatus is docked on the axle assembly, a caulking unit pressing the caulking position of the hub nut, a driving unit driving a piston rod forward using driving air pressure to provide pressing force to the caulking unit, and a driving control unit controlling the driving unit to drive the piston rod forward only if the setting of the caulking position has been finished by the position setting guider. The convenience, safety, and efficiency of a caulking work are improved, and the configuration is simplified, so that productivity is greatly improved.

Abstract: A plumbing device includes a housing that fits over a rod according to examples of the present disclosure. The rod is movably positioned in the housing. A pin connected to the rod is contained within an elongate opening in the outer surface of the housing. The pin serves as a stop for the rod in an extended position and retracted position.

Abstract: The present invention relates to a tower assembly system, a method of assembling a wind turbine tower and a wind turbine thereof. Three or more guidance devices may be mounted to a mounting flange in the upper end of a lower tower section and/or in the lower end of an upper tower section. The guidance device comprises a contact surface for contacting a mating contact surface on the opposite tower section. The guidance device comprises a mounting flange for mounting the device to the mounting flange of the tower section using fastening means. This allows the guidance devices to catch and guide the free hanging tower section into the correct position on the stationary tower section. This enables the assembly time to be reduced with up to 50% compared with the present assembly methods. The guidance devices allow the workers to guide the free hanging tower section into position from the ground.

Abstract: A device for separating pipe flanges through the application of a transverse force. The device contains a frame, a frame retaining plate, a pusher pin, a leveling pin, an anchoring pin, a member, and anti-slip screws.

Abstract: A cutting tool holder extraction devise comprising a cup, having a back portion having a rearward socket and a front portion having a forward tool socket, and a spacer section having an axial bore with a back orifice opening in the bottom of the rearward socket and a front orifice opening in the bottom of the tool socket; an expandable jack, the jack having an axial bore, and a front face; the front face of the jack is removably engageable with the rearward socket of the cup; a threaded bolt, the bolt having a front end and a rear end, the bolt removably disposable through the cup bore and through the jack bore; and at least one nut, removably attachable to the threaded bolt.

Abstract: An apparatus and method for extracting shafts is provided. The apparatus includes a torquing device, threaded rod, support frame, retractable portion, tensional coupler and collar. The torquing device is disposed on a first end of the threaded rod, and the threaded rod threads through a support frame and terminates at a second end that is in a rotatably free relationship with the retractable portion. The collar is connected to the retractable portion through the tensional coupler and is capable of grasping an engagement portion of the shaft. The method includes providing a shaft associated with an object, providing the apparatus, grasping the engagement portion of the shaft with the collar, positioning the support frame of the apparatus adjacent to a support wall and applying force while rotating the torquing device of the apparatus, resulting in the shaft being extracted.

Abstract: A removal tool which exerts an axial pull on an annular element including a tie rod with a widened end head adapted to be inserted in the coaxial passage of the annular element, beyond the annular element, and a mechanism for engaging with the element in a form of an annular cage with lateral prongs capable of deforming elastically in the radial direction, passing through the axial passage to engage via the elastic prongs thereof with the distal transverse surface of the element and to allow the element to be removed by the engagement of the widened head with the prongs, following the axial movement of the tie rod outside of the hole by a control mechanism.

Abstract: The fence post extraction tool is a tool used to extract a wooden fence post from the ground using only vertical movement. The wooden fence post extraction tool includes a threaded rod that screws into an expanding piercing tip. The expanding piercing tip is driven into a pre-drilled hole located on a top surface of the wooden fence post. The piercing tip is driven into the hole via a hammer sleeve that is slideable engaged about the threaded rod. The threaded rod is attached to an attachment clip located at a distal end from the piercing tip. The attachment clip secures to a lifting means suspended under a tripod, and which lifts the wooden fence post vertically from the ground.

Abstract: The present invention will provide sturdy, adjustable support for installing a garbage disposal onto a kitchen sink. Furthermore, the present invention allows the disposal to be installed without the assistance of a second party. This is accomplished by uniquely clamping the garbage disposal to the underside of the sink, enabling the user to secure the device without the need to support it themselves.

Abstract: A puller for removing a pulley off of the shaft is disclosed. The puller may have proximal and distal plates that are disposable around the pulley so that the pulley is disposed entirely between the proximal and distal plates. These plates are held together by frame members. A push rod is threadably engaged to a proximal plate and operative to be further inserted into the proximal plate so that a distal end of the push rod may push against the shaft and transfer a removing force through the puller to the backside of the pulley for removing the pulley off of the shaft.

Abstract: A faucet handle removal device allows a user to repair a faucet without causing damage to the faucet's handle or stem. The device includes a body having a top wall, a bottom wall, and a perimeter wall extending between the top and bottom walls. The bottom wall and perimeter wall define an interior of the body. An interior edge of the top wall defines an access opening into the interior. A first void extends into the perimeter wall and a second void extends into the bottom wall. The first void is configured to receive the faucet handle and the second void is configured to receive the faucet stem. A screw is insertable into the access opening. The screw has a bottom end configured for positioning within a base of the handle wherein manipulation of the screw drives the screw downwardly into the handle and removes the handle from the stem.

Abstract: A device (10) for removing the tooth brush head from the body of an electrical tooth brush is described. Device (10) includes a tooth brush head engaging member (12), a seat member (14) for seating against a body of an electrical-tooth brush and a screw-threaded member (16) positioned operatively between the tooth brush head engaging member (12) and the seat member (14), so as to cause the tooth brush head engaging member (12) to displace relative to the seat member (14) in response to angular displacement of the screw-threaded member (16).

Abstract: An alignment tool (100) aligns a first opening (416A) in a first member (30A) with a second opening (417A) in a second member (30D) to receive a fastener to couple the members. First (102) and second (103) lugs extend from a back plate (101). A first pin (104) is received within a first lug opening (102C) and within a third opening (408A) in the first member (30A). Similarly a second pin (108) is received within a second lug opening (103A) and within a fourth opening (409A) in the second member (30D). The third (408A) and fourth (409A) openings are proximate respective first (416A) and second (417A) openings. Reducing the distance between the back plate (100) and the first pin (104) displaces the third opening (408A) toward the back plate (100) to align the first (416A) and second (417A) openings.

Abstract: In one aspect of the present disclosure, a tool for removing a dowel pin from a component is shown. The tool includes an elongated nut, a bolt, a hollow pipe, at least one washer, and a fastening nut. The elongated nut has a first end and a second end. The first end has a threaded portion to receive the dowel pin. The bolt has a threaded first end and threaded second end. The bolt threaded first end is configured to be threaded into the second end of the elongated nut. A hollow pipe is positionable to cover the elongated nut and the bolt such that the first end of the hollow pipe is positioned around the dowel pin and a portion of the bolt extends outward beyond the second end of the hollow pipe. At least one washer is disposed through a bolt to make contact with the second end of the hollow pipe. A fastening nut is engaged to thread onto the second end of the bolt and is configured to apply pressure to the at least one washer, thereby extracting the dowel pin.

Abstract: A universal ball joint extractor has a first body having a first applying end for engaging with a ball joint. A second body has a second applying end for pushing against a member having the ball joint. A connecting rod connects the second body and the first body to allow relative movements thereof. A control screw for pushing an rear end of the second body and an rear end the first body provides an opposite force to the first applying end to push out the ball joint.

Abstract: An installation tool for one or more components of a fluid filter includes a first body portion configured to engage a filter socket to advance the tool and filter components into the socket, and a second body portion configured to apply a direct force to one or more filter components. The first and second body portions can rotationally move relative to each other, such that the filter components may not grind against the socket or other filter components, which can, among other things, reduce or eliminate the creation of foreign object debris and/or minimize the amount of human force required to install the filter components.

Abstract: A tube fitting for sealing an end of a tube uses a notch formed in the exterior surface of the tube as a sealing seat. An internally threaded body is configured to receive an externally threaded end of a nut, while the body and the nut are mounted in a surrounding relationship to the tube end. A ferrule mounted between the nut and the tube is forced to plastically deform and move into the notch to thereby seal the tube end.

Abstract: A puller includes a main body, a plurality of hook elements, a plurality of connecting rods, and an operating rod. The main body has a threaded hole and a plurality extending arms, and each extending arm has an abutting trough at an end. Each hook element has at least one claw portion. Two opposite ends of each connecting rod are pivotably connected with one of the hook elements and one of the extending arms. The operating rod has threaded rod screwed with the threaded hole. When the hook element abuts against one of the abutting trough, the extending arm covers at least half the hook element in width to position it. Thereby, durability and stability are improved.

Abstract: A method of lifting a nacelle installed on a tower is provided. The method includes attaching a tapered bushing mechanism to a through-hole provided for a member of the tower; attaching a push-up bolt to the tapered bushing mechanism; and raising the push-up bolt while pushing the push-up bolt against a first member provided for the nacelle. The tapered bushing mechanism includes a tapered bushing inner cylinder and a tapered bushing outer cylinder. The tapered bushing inner cylinder includes a first taper section whose outer diameter becomes larger toward an end of the tapered bushing inner cylinder and a first screw thread formed on an inner surface of the tapered bushing inner cylinder. The tapered bushing outer cylinder includes a second taper section whose inner diameter becomes smaller toward an end of the tapered bushing outer cylinder.

Abstract: The CV joint removal tool's clamps surround an axle proximal to the CV joint to be separated from the axle. The tool clamps onto the axle and applies a constant axial force to separate the two CV joint components via the push plate and push rods. Removal of the entire axle assembly is negated, saving parts cost and labor costs. The tool does not require complete drive axle removal, as do other devices attempting the same function. The CV joint removal tool pushes the CV joint and the axle apart, further differentiating from previous methods and devices. The tool utilizes Newton's law of equal and opposite reactions. The key challenge that the CV joint removal tool overcomes is that when CV joints are installed, neither end of the drive axle is accessible.

Abstract: An installation tool and method are disclosed for installing a combustion liner within a combustor. The installation tool comprises a frame and a pusher block. The frame includes a substantially horizontal member and a plurality of side members. The pusher block is disposed between the side members and may be configured to push against the combustion liner.

Abstract: A universal ball joint extractor has a first body having a first applying end for engaging with a ball joint. A second body has a second applying end for pushing against a member having the ball joint. A connecting rod connects the second body and the first body to allow relative movements thereof. A control screw for pushing an rear end of the second body and an rear end the first body provides an opposite force to the first applying end to push out the ball joint.

Abstract: A puller includes a main body, a plurality of hook elements, a plurality of connecting rods, and an operating rod. The main body has a threaded hole and a plurality extending arms, and each extending arm has an abutting trough at an end. Each hook element has at least one claw portion. Two opposite ends of each connecting rod are pivotably connected with one of the hook elements and one of the extending arms. The operating rod has threaded rod screwed with the threaded hole. When the hook element abuts against one of the abutting trough, the extending arm covers at least half the hook element in width to position it. Thereby, durability and stability are improved.

Abstract: A clamping system with a clamping nut and a wrench for tightening the clamping nut, wherein the clamping nut includes at least one recess on either the outside edge or the inside edge of the end face of the clamping nut to receive projections of the wrench. The edge opposite the edge with at least one recess is closed. The at least one recess is provided with at least one undercut, which the projections of the wrench can grip from underneath.

Abstract: A method of lifting a nacelle installed on a tower is provided. The method includes attaching a tapered bushing mechanism to a through-hole provided for a member of the tower; attaching a push-up bolt to the tapered bushing mechanism; and raising the push-up bolt while pushing the push-up bolt against a first member provided for the nacelle. The tapered bushing mechanism includes a tapered bushing inner cylinder and a tapered bushing outer cylinder. The tapered bushing inner cylinder includes a first taper section whose outer diameter becomes larger toward an end of the tapered bushing inner cylinder and a first screw thread formed on an inner surface of the tapered bushing inner cylinder. The tapered bushing outer cylinder includes a second taper section whose inner diameter becomes smaller toward an end of the tapered bushing outer cylinder.

Abstract: A flange clamp also known as a quick release clamp, in a preferred embodiment, includes a first half clamp body and a second half clamp body; the first half has a first arc outer side and a first arc inner side with the inner side having a first arc first load bearing shoulder and a first arc second load bearing shoulder. The first arc having a curvature of about 175 degrees to about 350 degrees with a first space is formed between the load bearing shoulders and is adapted to fit about a flange.

Abstract: A device to remove a metal servo horn in an efficient way by utilizing the lifting force to separate servo horn from a servo output shaft when screw is rotated counter-clockwise and hits against the concave of lower surface of upper front plate of the device. Clamping force provided by two fastening members combines the device and servo horn into one integrated unit to avoid the distortion of open end of the device when lifting force is greater than rigidity of the device. When a lifting force for removing the integrated unit is applied in direction opposite to installing direction of servo horn, it overcomes the friction between the inner splines of servo horn and the outer splines of servo output shaft then separates both splines. The removal of the servo horn from the servo output shaft is achieved.

Abstract: A mandrel extraction tool includes an actuator assembly and a first mandrel interface arm operably associated with the actuator assembly and adapted to engage a first mandrel. The mandrel extraction tool further includes a second mandrel interface arm operably associated with the actuator assembly and adapted to engage a second mandrel, the second mandrel interface arm being slidingly coupled with the first mandrel interface arm, such that the first mandrel interface arm moves generally linearly with respect to second interface arm when the actuator assembly is actuated. A method for extracting a mandrel includes providing a mandrel extraction tool, engaging the mandrel extraction tool with a mandrel, and applying a force to the mandrel to linearly extract the mandrel from a first portion of a structure.

Abstract: A component removal apparatus for use with a turbine engine is provided. The apparatus includes a main body and at least one alignment member that extends from the main body, wherein the alignment member is configured to position the apparatus relative to at least a portion of a component of the turbine engine. At least one leg member extends outwardly from at least one end portion of the main body. At least one lifting member is coupled to the leg member and is configured to apply a force to the leg member and/or the main body to facilitate the removal of the component from the turbine engine.

Abstract: An improved structure of the driving axis of a puller includes a screw bar, a driving assembly with a through hole, and a driven assembly underneath the driving assembly, with a screw hole. A plurality of connecting arms is disposed in the radial direction of the driven assembly. The screw bar penetrates downward through the driving assembly and the driven assembly with its bottom end, while its top end is provided with a rotating element for mounting a tool to rotate the screw bar. With a positioning element penetrated the rotating element into the screw bar, the rotating element is fixed on the screw bar for simultaneous rotation.

Abstract: A pressing disc for disassembling bearings includes three arc members each has a clamp portion and a through hole on each of two sides thereof. The three arc members are coupled with each other to allow any one through hole of any one arc member to communicate with the opposing through hole of the neighboring arc member to form a channel. The three clamp portions are connected with each other to form a clamp space. The pressing disc also has three penetrating rods respectively running through the channel. Each penetrating rod has one set of fastening member to push the arc members close to each other to shrink the clamp space. Thus a bearing placed in the clamp space can be firmly clamped through the three clamp portions from three pressing directions without slipping during disassembly.