TWI385318B - Lubrication apparatus for ball screw - Google Patents
Lubrication apparatus for ball screw Download PDFInfo
- Publication number
- TWI385318B TWI385318B TW99134139A TW99134139A TWI385318B TW I385318 B TWI385318 B TW I385318B TW 99134139 A TW99134139 A TW 99134139A TW 99134139 A TW99134139 A TW 99134139A TW I385318 B TWI385318 B TW I385318B
- Authority
- TW
- Taiwan
- Prior art keywords
- oil
- nut
- hole
- rolling groove
- ball screw
- Prior art date
Links
Landscapes
- Transmission Devices (AREA)
Description
本發明係為一種傳動元件之潤滑裝置，尤指一種具潤滑裝置之滾珠螺桿。The invention relates to a lubricating device for a transmission component, in particular to a ball screw with a lubricating device.
滾珠螺桿是一種藉螺帽和螺桿相對移動來作動機械之工作件，其螺帽的移動是藉由螺帽和螺桿兩者螺牙間之鋼珠滾動來產生相對移動，因而滾珠螺桿具有較佳之機械傳動效率。但是滾珠螺桿如果長時間缺乏潤滑，可能造成螺帽和螺桿間之磨擦加大而加速滾珠螺桿之磨耗。傳統滾珠螺桿之潤滑系統大致有兩種：第一種如第一圖及第二圖所示，係將潤滑系統80加掛於螺帽10兩端，將潤滑油存於潤滑系統80中，再用吸油物81直接塗抹於螺桿70表面上而潤滑螺桿70之滾動溝。另一種則如第三圖所示，係將螺帽10兩端之刮刷器90使用含油材質製造，使含油材質直接與螺桿70表面接觸而潤滑螺桿70之滾動溝。The ball screw is a working piece that moves the machine by the relative movement of the nut and the screw. The movement of the nut is caused by the rolling of the steel ball between the nut of the nut and the screw to generate relative movement, so that the ball screw has better mechanical mechanism. Transmission efficiency. However, if the ball screw lacks lubrication for a long time, the friction between the nut and the screw may increase to accelerate the wear of the ball screw. There are two kinds of lubrication systems for the conventional ball screw: the first one is shown in the first figure and the second figure, the lubrication system 80 is attached to both ends of the nut 10, and the lubricating oil is stored in the lubrication system 80, and then The oil absorbing material 81 is directly applied to the surface of the screw 70 to lubricate the rolling groove of the screw 70. The other is as shown in the third figure. The wiper 90 at both ends of the nut 10 is made of an oil-containing material, so that the oil-containing material directly contacts the surface of the screw 70 to lubricate the rolling groove of the screw 70.
第二種如第三圖所示，係將螺帽10兩端之刮刷器90使用含油材質製造，使含油材質直接與螺桿70表面接觸而潤滑螺桿70之螺牙。The second type, as shown in the third figure, is that the wiper 90 at both ends of the nut 10 is made of an oil-containing material, so that the oil-containing material directly contacts the surface of the screw 70 to lubricate the screw of the screw 70.
然，該習知滾珠螺桿之潤滑系統經實用後，因為此兩種潤滑系統皆會造成螺帽加長，而使滾珠螺桿原有之有效行程縮短，如要解決此問題又必須增加螺桿的總長相對使螺牙長度增加，但這也使製造成本及物料成本增加，也影響到售價而使消費者接受度降低。However, the conventional lubrication system of the ball screw is practical, because both of the lubrication systems cause the nut to lengthen, and the original effective stroke of the ball screw is shortened. To solve this problem, the total length of the screw must be increased. Increasing the length of the thread, but this also increases manufacturing costs and material costs, but also affects the price and reduces consumer acceptance.
基於上述習知技術之問題點，本發明人經過研究改良後，終有確能達成以下發明之目的之發明誕生。Based on the problems of the above-mentioned conventional techniques, the inventors of the present invention have succeeded in research and development, and the inventions which can achieve the object of the following inventions are finally born.
即，本發明首要目的在於，研發一種不會增加滾珠螺桿之螺帽整體體積的潤滑裝置。That is, the primary object of the present invention is to develop a lubricating device that does not increase the overall volume of the nut of the ball screw.
為達上述之目的，本發明係為一種具潤滑裝置之滾珠螺桿，係包含：一長軸，其為長條狀之構型，該長軸外壁面係定義為外緣面，該外緣面設有螺旋狀之滾動溝；一螺帽，其設有供該長軸穿設之穿孔，該穿孔之內壁面係定義為內緣面，該內緣面設有相對該滾動溝之滾動槽，該滾動溝及滾動槽係構成一負荷路徑，且該螺帽設有一軸方向並貫穿螺帽兩端之迴流孔，且於該穿孔之內緣面設有兩安裝槽，兩該安裝槽係分別位於該迴流孔之兩端，且該螺帽之外壁面係定義為外表面，該外表面設有一凹設之容置凹部，其構型概呈U字型；兩迴流元件，其係安裝於該安裝槽，且該迴流元件係設有一迴流道，該迴流道的兩端分別與該迴流孔及負荷路徑銜接，以構成一循環路徑；一潤滑裝置，係包含一油箱本體及塗抹件，該油箱本體係容設於該容置凹部，且該油箱本體之外型係相對該容置凹部設置，且該油箱本體係設有一油槽，該油槽係提供潤滑油容置，該塗抹件係裝設於該油箱本體，且該塗抹件之一端係位於該油槽，另一端係朝該滾動溝凸設並與該滾動溝接觸，該塗抹件係將該潤滑油從油槽傳遞至該滾動溝。In order to achieve the above object, the present invention is a ball screw with a lubricating device, comprising: a long axis, which is an elongated configuration, the long axis outer wall surface is defined as an outer edge surface, the outer edge surface a spiral rolling groove is provided; a nut is provided with a perforation for the long shaft, and the inner wall surface of the perforation is defined as an inner edge surface, and the inner edge surface is provided with a rolling groove opposite to the rolling groove, The rolling groove and the rolling groove form a load path, and the nut is provided with a return hole extending in the axial direction and penetrating the two ends of the nut, and two mounting grooves are provided on the inner edge surface of the through hole, and the two mounting grooves are respectively Located at both ends of the return hole, and the outer wall surface of the nut is defined as an outer surface, the outer surface is provided with a recessed receiving recess, the configuration is U-shaped; two reflow elements are mounted on a mounting groove, and the reflow element is provided with a return flow, the two ends of the return flow are respectively connected with the return hole and the load path to form a circulation path; a lubricating device comprises a tank body and an applicator, The fuel tank system is disposed in the receiving recess, and the fuel tank body The outer casing is disposed opposite to the accommodating recess, and the oil tank system is provided with an oil groove for providing lubricating oil. The squeegee is mounted on the oil tank body, and one end of the smear is located in the oil sump The other end is convex toward the rolling groove and is in contact with the rolling groove, and the applicator transmits the lubricating oil from the oil groove to the rolling groove.
其中，該螺帽兩端更各設有一防塵件，該防塵件設有一供該長軸穿設之貫穿孔，該貫穿孔之內緣面係設有朝該滾動溝凸設之凸伸部。Each of the two ends of the nut is further provided with a dustproof member. The dustproof member is provided with a through hole for the long shaft. The inner edge surface of the through hole is provided with a protruding portion protruding toward the rolling groove.
其中，該螺帽更設有一與該容置凹部鄰接之凹部，該凹部係位於該安裝槽上方，且該凹部具有一開口，該開口係朝軸方向設置；該油箱本體相對該凹部位置係設有一朝該穿孔方向凸伸之凸出部，該凸出部係容設於該凹部，且該凸出部係設有一供該塗抹件穿設之通孔。The nut is further provided with a recess adjacent to the receiving recess, the recess is located above the mounting slot, and the recess has an opening, the opening is disposed in an axial direction; the tank body is disposed relative to the recess And a protruding portion protruding in the direction of the through hole, the protruding portion is received in the concave portion, and the protruding portion is provided with a through hole through which the applicator member is pierced.
其中，該油箱本體係具有一注油孔，該注油孔係與該油槽連通；且潤滑裝置更包含一油塞，該油塞係蓋設於該注油孔，使該注油孔為封閉之狀態。The oil tank system has an oil injection hole, and the oil injection hole is connected with the oil groove; and the lubricating device further comprises a oil plug, wherein the oil plug cover is disposed in the oil injection hole, so that the oil injection hole is in a closed state.
其中，該螺帽之容置凹部係設有複數固定孔，該固定孔具有內螺紋；該油箱本體係設有相對該固定孔之沉頭孔；該潤滑裝置更包含複數固定件，該固定件具有外螺紋，該固定件係穿設於該沉頭孔後，該外螺紋係與該內螺紋相互螺合鎖固，使該油箱本體固定於該螺帽。Wherein, the receiving recess of the nut is provided with a plurality of fixing holes, the fixing hole has an internal thread; the oil tank system is provided with a countersunk hole opposite to the fixing hole; the lubricating device further comprises a plurality of fixing members, the fixing member The external thread is inserted into the counterbore, and the external thread is screwed to the internal thread to fix the tank body to the nut.
其中，該油箱本體之外壁面係定義為表面，該表面係與該螺帽之外表面為相切設置，而使該螺帽恢復原本未設有該容置凹部之外型。Wherein, the outer wall surface of the oil tank body is defined as a surface which is tangentially disposed on the outer surface of the nut, and the nut is restored to a shape not originally provided with the accommodating recess.
為了更進一步瞭解本發明之特徵及技術內容，請參閱以下有關本發明之實施方式說明及圖式，然而此實施方式及圖式僅供說明及參考用，而非用以對本發明做任何限制者。In order to further understand the features and technical aspects of the present invention, reference should be made to the description of the embodiments of the present invention and the accompanying drawings. .
請參閱第四圖至第九圖所示，本發明係為一種具潤滑裝置之滾珠螺桿，係包含：一長軸1，其為長條狀之構型，該長軸1外壁面係定義為外緣面11，該外緣面11設有螺旋狀之滾動溝111；一螺帽2，其設有供該長軸1穿設之穿孔21，該穿孔21之內壁面係定義為內緣面211，該內緣面211設有相對該滾動溝11之滾動槽2111，該滾動溝11及滾動槽2111係構成一負荷路徑，且該螺帽2設有一軸方向X並貫穿螺帽2兩端之迴流孔22，且於該內緣面211設有兩安裝槽2112，兩該安裝槽2112係分別位於該迴流孔22之兩端；且該螺帽2之外壁面係定義為外表面26，該外表面26設有一凹設之容置凹部24，其構型概呈U字型，該容置凹部24係設有複數固定孔25，該固定孔25具有內螺紋；另外，該螺帽2更設有一與該容置凹部24鄰接之凹部23，該凹部23係位於該安裝槽2112上方，且該凹部23係朝軸方向X開設有一開口231；且該螺帽2兩端更各設有一防塵件4，該防塵件4設有一供該長軸穿設之貫穿孔，該貫穿孔之內緣面係設有朝該滾動溝凸設之凸伸部。Referring to FIG. 4 to FIG. 9 , the present invention is a ball screw with a lubricating device, comprising: a long shaft 1 which is in the form of a long strip, and the outer wall surface of the long shaft 1 is defined as The outer peripheral surface 11 is provided with a spiral rolling groove 111; a nut 2 is provided with a through hole 21 through which the long shaft 1 is bored, and the inner wall surface of the through hole 21 is defined as an inner peripheral surface 211, the inner edge surface 211 is provided with a rolling groove 2111 opposite to the rolling groove 11, the rolling groove 11 and the rolling groove 2111 form a load path, and the nut 2 is provided with an axial direction X and penetrates the two ends of the nut 2 a return hole 22, and two mounting grooves 2112 are defined in the inner edge surface 211, and the two mounting holes 2112 are respectively located at two ends of the return hole 22; and the outer wall surface of the nut 2 is defined as an outer surface 26, The outer surface 26 is provided with a recessed receiving recess 24, which is generally U-shaped. The receiving recess 24 is provided with a plurality of fixing holes 25 having internal threads. In addition, the nut 2 is provided. Further, a recess 23 is formed adjacent to the accommodating recess 24, and the recess 23 is located above the mounting groove 2112, and the recess 23 is opened in the axial direction X. And a dustproof member 4 is disposed at each end of the nut 2, the dustproof member 4 is provided with a through hole for the long shaft, and the inner edge surface of the through hole is provided to protrude toward the rolling groove The protrusion.
兩迴流元件(未顯示)，其係安裝於該安裝槽2112，且該迴流元件係設有一迴流道(未顯示)，該迴流道的兩端分別與該迴流孔22及負荷路徑銜接，以構成一循環路徑；一潤滑裝置3，係包含一油箱本體30、塗抹件33、油塞37及複數固定件36，該油箱本體30係容設於該容置凹部24，且該油箱本體30之外型係相對該容置凹部24設置，且該油箱本體30係設有一油槽31，該油槽31係提供潤滑油容置，該油箱本體30相對該凹部24位置係設有一朝該穿孔21方向凸伸之凸出部32，該凸出部32係容設於該凹部23，且該凸出部32係設有一供該塗抹件33穿設之通孔321，使該塗抹件33之一端係位於該油槽31，另一端係朝該滾動溝111凸設並與該滾動溝111接觸，該塗抹件33係將該潤滑油從油槽31傳遞至該滾動溝111之表面；且為了方便使用者填充潤滑油，於該油箱本體30係具有一注油孔35，該注油孔35係與該油槽31連通，該油塞37係蓋設於該注油孔35，使該注油孔35為封閉之狀態，以防止潤滑油外洩。另外，為了預防該油箱本體30於螺帽2運行時脫離該螺帽2，故該油箱本體30係設有相對該固定孔25之沉頭孔34，而該固定件36具有外螺紋，該固定件36係穿設於該沉頭孔34後，該固定件36之外螺紋係與該固定孔25之內螺紋相互螺合鎖固，使該油箱本體30固定於該螺帽2。再者，為了達成本發明之目的，該油箱本體30設置於該螺帽2之位置，係移除該螺帽2多餘的壁厚而設置該容置凹部24，而該油箱本體30的體積係等於該容置凹部24之所移除壁厚的體積，故當該油箱本體30設置於該螺帽2後，並不會增加該螺帽2整體的體積，且該油箱本體30之外壁面係定義為表面38，該表面38係與該螺帽2之外表面26為相切設置，而使該螺帽2恢復原本未設有該容置凹部24之外型，故該油箱本體30之表面38亦不會外凸於該螺帽2之外表面26，相對不會增加該螺帽2之軸方向X的長度，以避免縮短該螺帽2運行之有效行程，故已解決習知技術無法克服的問題。Two reflow elements (not shown) are mounted on the mounting groove 2112, and the reflow element is provided with a return flow path (not shown), and two ends of the return flow path are respectively connected to the return hole 22 and the load path to constitute A circulation path; a lubricating device 3 includes a tank body 30, an applicator member 33, an oil plug 37, and a plurality of fixing members 36. The tank body 30 is received in the receiving recess 24 and outside the tank body 30. The sump is disposed opposite to the accommodating recess 24, and the sump 31 is provided with an oil sump 31 for providing lubricating oil. The tank body 30 is disposed opposite to the recess 24 in a direction toward the through hole 21. The protruding portion 32 is disposed in the recessed portion 23, and the protruding portion 32 is provided with a through hole 321 through which the applicator member 33 is disposed, so that one end of the applicator member 33 is located in the oil groove. 31. The other end protrudes toward the rolling groove 111 and is in contact with the rolling groove 111. The application member 33 transfers the lubricating oil from the oil groove 31 to the surface of the rolling groove 111; and for the user to fill the lubricating oil, The tank body 30 has an oil hole 35, and the oil hole 35 is The communication oil groove 31, the oil-based cap plug 37 disposed in the injection hole 35, the oil hole 35 so that the closed state, in order to prevent oil leakage. In addition, in order to prevent the oil tank body 30 from being detached from the nut 2 when the nut 2 is in operation, the oil tank body 30 is provided with a countersunk hole 34 opposite to the fixing hole 25, and the fixing member 36 has an external thread, and the fixing After the member 36 is threaded through the counterbore 34 , the external thread of the fixing member 36 and the internal thread of the fixing hole 25 are screwed together to fix the oil tank body 30 to the nut 2 . Furthermore, in order to achieve the object of the present invention, the tank body 30 is disposed at the position of the nut 2, and the excess wall thickness of the nut 2 is removed to provide the accommodating recess 24, and the volume of the tank body 30 is It is equal to the volume of the removed wall thickness of the accommodating recess 24, so that when the oil tank body 30 is disposed on the nut 2, the overall volume of the nut 2 is not increased, and the outer wall surface of the oil tank body 30 is The surface 38 is defined as a tangent to the outer surface 26 of the nut 2, and the nut 2 is restored to a shape that is not provided with the receiving recess 24, so the surface of the tank body 30 38 does not protrude from the outer surface 26 of the nut 2, and does not increase the length of the axial direction X of the nut 2, so as to avoid shortening the effective stroke of the nut 2, so that the conventional technology cannot be solved. Overcome the problem.
綜所上述，所以本發明之『具有產業之可利用性』應已毋庸置疑，除此之外，在本案實施例所揭露出的特徵技術，於申請之前並未曾見於諸刊物，亦未曾被公開使用，不但具有如上所述功效增進之事實，更具有不可輕忽的附加功效，是故，本發明的『新穎性』以及『進步性』都已符合專利法規，爰依法提出發明專利之申請，祈請惠予審查並早日賜准專利，實感德便。In view of the above, the "industrial availability" of the present invention should be unquestionable. In addition, the feature technology disclosed in the embodiment of the present invention has not been seen in publications before the application, nor has it been disclosed. The use of not only has the fact that the effect is improved as described above, but also has an additional effect that cannot be neglected. Therefore, the "novelty" and "progressiveness" of the present invention are in compliance with the patent regulations, and the application for the invention patent is filed according to law. Please give us a review and grant a patent as soon as possible.
以上所述實施例之揭示係用以說明本發明，並非用以限制本發明，故舉凡數值之變化與等效元件之置換，仍應隸屬本發明之範疇。The above description of the embodiments is intended to be illustrative of the invention and is not intended to limit the scope of the invention.
10．．．螺帽10. . . Nut
70．．．螺桿70. . . Screw
80．．．潤滑系統80. . . Lubrication system
81．．．吸油物81. . . Oil absorbing material
90．．．刮刷器90. . . Scraper
1．．．長軸1. . . Long axis
11．．．外緣面11. . . Outer rim
111．．．滾動溝111. . . Rolling groove
2．．．螺帽2. . . Nut
21．．．穿孔twenty one. . . perforation
211．．．內緣面211. . . Inner edge
2111．．．滾動槽2111. . . Rolling groove
2112．．．安裝槽2112. . . Mounting slot
22．．．迴流孔twenty two. . . Return hole
23．．．凹部twenty three. . . Concave
231．．．開口231. . . Opening
24．．．容置凹部twenty four. . . Included recess
25．．．固定孔25. . . Fixed hole
26．．．外表面26. . . The outer surface
3．．．潤滑裝置3. . . Lubricating device
30．．．油箱本體30. . . Fuel tank body
31．．．油槽31. . . Oil tank
32．．．凸出部32. . . Protrusion
321．．．通孔321. . . Through hole
33．．．塗抹件33. . . Smear
34．．．沉頭孔34. . . Spigot
35．．．注油孔35. . . Oil filling hole
36．．．固定件36. . . Fastener
37．．．油塞37. . . Oil plug
38．．．表面38. . . surface
4．．．防塵件4. . . Dustproof
41．．．凸伸部41. . . Protrusion
5．．．滾動體5. . . Rolling body
X．．．軸方向X. . . Axis direction
第一圖係為第一種習知具有潤滑系之統滾珠螺桿立體圖。The first figure is a perspective view of the first conventional ball screw with a lubrication system.
第二圖係為第一種習知的潤滑系統剖視圖。The second figure is a cross-sectional view of the first conventional lubrication system.
第三圖係為第二種習知之具潤滑系統之滾珠螺桿示意圖。The third figure is a schematic view of a second known ball screw with a lubrication system.
第四圖係為本發明具潤滑裝置之滾珠螺桿立體圖。The fourth figure is a perspective view of the ball screw with the lubricating device of the present invention.
第五圖係為本發明具潤滑裝置之滾珠螺桿分解圖。The fifth figure is an exploded view of the ball screw with the lubricating device of the present invention.
第六圖係為本發明具潤滑裝置之滾珠螺桿之螺帽與潤滑裝置的剖視圖。Figure 6 is a cross-sectional view showing the nut and lubrication device of the ball screw with the lubricating device of the present invention.
第七圖係為本發明具潤滑裝置之滾珠螺桿之螺帽立體圖。The seventh figure is a perspective view of the nut of the ball screw with the lubricating device of the present invention.
第八圖係為本發明具具潤滑裝置之滾珠螺桿之軸方向半剖視圖。Figure 8 is a half cross-sectional view of the axial direction of the ball screw with the lubricating device of the present invention.
第九圖係為本發明潤滑裝置之滾珠螺桿之徑方向剖視圖，係顯示塗抹件與長軸之滾動溝接觸態樣。The ninth drawing is a radial cross-sectional view of the ball screw of the lubricating device of the present invention, showing the contact state of the applicator member and the rolling groove of the long axis.
2．．．螺帽2. . . Nut
21．．．穿孔twenty one. . . perforation
211．．．內緣面211. . . Inner edge
2111．．．滾動槽2111. . . Rolling groove
2112．．．安裝槽2112. . . Mounting slot
22．．．迴流孔twenty two. . . Return hole
23．．．凹部twenty three. . . Concave
24．．．容置凹部twenty four. . . Included recess
26．．．外表面26. . . The outer surface
3．．．潤滑裝置3. . . Lubricating device
30．．．油箱本體30. . . Fuel tank body
31．．．油槽31. . . Oil tank
32．．．凸出部32. . . Protrusion
321．．．通孔321. . . Through hole
33．．．塗抹件33. . . Smear
34．．．沉頭孔34. . . Spigot
38．．．表面38. . . surface
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99134139A TWI385318B (en) | 2010-10-07 | 2010-10-07 | Lubrication apparatus for ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99134139A TWI385318B (en) | 2010-10-07 | 2010-10-07 | Lubrication apparatus for ball screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201215783A TW201215783A (en) | 2012-04-16 |
| TWI385318B true TWI385318B (en) | 2013-02-11 |
Family
ID=46786940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW99134139A TWI385318B (en) | 2010-10-07 | 2010-10-07 | Lubrication apparatus for ball screw |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI385318B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795172A (en) * | 1987-12-07 | 1989-01-03 | Cincinnati Milacron Inc. | Grease seal for a power screw system |
| US6125968A (en) * | 1996-12-09 | 2000-10-03 | Thk Co., Ltd. | Lubricating oil supply system for a rolling guide apparatus |
| US20030145670A1 (en) * | 2002-02-07 | 2003-08-07 | Thk Co., Ltd. | Screw device having lubricant applying portion |
| CN101038021A (en) * | 2006-03-16 | 2007-09-19 | 上银科技股份有限公司 | Self-lubricating ball screw |
| TW201031841A (en) * | 2009-02-26 | 2010-09-01 | Hiwin Tech Corp | Nut rotary type ball screw having grease injecting device |
-
2010
- 2010-10-07 TW TW99134139A patent/TWI385318B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795172A (en) * | 1987-12-07 | 1989-01-03 | Cincinnati Milacron Inc. | Grease seal for a power screw system |
| US6125968A (en) * | 1996-12-09 | 2000-10-03 | Thk Co., Ltd. | Lubricating oil supply system for a rolling guide apparatus |
| US20030145670A1 (en) * | 2002-02-07 | 2003-08-07 | Thk Co., Ltd. | Screw device having lubricant applying portion |
| CN101038021A (en) * | 2006-03-16 | 2007-09-19 | 上银科技股份有限公司 | Self-lubricating ball screw |
| TW201031841A (en) * | 2009-02-26 | 2010-09-01 | Hiwin Tech Corp | Nut rotary type ball screw having grease injecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201215783A (en) | 2012-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5110250B2 (en) | Oil seal | |
| JP5902832B2 (en) | Oil level gauge device | |
| US20200132185A1 (en) | Harmonic Reducer with an Oil Guiding Ring | |
| TWI385318B (en) | Lubrication apparatus for ball screw | |
| JP5984101B2 (en) | Low dust generation / anti-dust shock absorber | |
| CN104428559B (en) | Gearing | |
| JP5138463B2 (en) | Ball screw device | |
| JP4101243B2 (en) | Replaceable ball screw with oil storage | |
| JP5793436B2 (en) | Engine input control lever shaft sealing device | |
| CN212225782U (en) | Novel cylindrical roller bearing | |
| JP6650226B2 (en) | Linear motion guide unit | |
| JP4668706B2 (en) | Torque goods | |
| CN204845908U (en) | Self -lubricating type brake pedal mechanism | |
| JP5408461B2 (en) | Oil seal | |
| JP2018048660A (en) | Seal device | |
| TW201237292A (en) | Ball screw device having lubricating structure | |
| JP2005042796A (en) | End cap type ball screw device | |
| TWM540948U (en) | Transmission element with lubrication device | |
| TWI401373B (en) | Ball screw having a dust keeper | |
| JP3108596U (en) | Automatic lubricator for linear rail | |
| CN216407690U (en) | Gearbox end face sealing structure | |
| CN209977174U (en) | Ball screw nut | |
| JP7073225B2 (en) | Oil level gauge removal prevention structure | |
| TWI432661B (en) | A drive element with a double nut assembly | |
| TWM530374U (en) | Ball screw with lubrication structure |