ROLLING ELEMENT RECEPTACLE, SLIDING PIECE AND LINEAR GUIDE WITH LIMITED STROKE

Abstract

The present invention relates to a rolling element holder (10), a slider (20), and a limited-stroke linear guide (30). Rolling elements (2) are inserted into the rolling element holder (20) to form the slider (20). The slider (20) is arranged between two fixed-length rails (4) so ​​that the two fixed-length rails (4) can be stably moved against each other to form the limited-stroke linear guide (30). The rolling element holder (10) comprises a housing (1), a plurality of receiving holes (13) distributed on the housing (1) for receiving the rolling element (2), and a plurality of openings (14) formed on the housing (1) and arranged between the receiving holes (13). Lubricating greases or porous lubricants are stored in the openings (14) to provide lubrication when the rolling elements (2) roll.In the longitudinal direction, the housing (1) has a polygonal profile and at least four protruding parts (12) protruding from the housing (1). The protruding parts (12) extend continuously over all adjacent receiving holes (13). Thus, the rolling element holder (10) has better rigidity and more holes (13) to accommodate more rolling elements (2), thereby improving the load-bearing capacity of the limited-stroke linear guide (30).

Description

BACKGROUND OF THE INVENTION(a) Field of the InventionThe present invention relates to a roller retainer, a slider and a linear guide with limited stroke, more particularly to a roller retainer having receiving holes for receiving therein rollers and openings which are received between the receiving holes and connected to the receiving holes for storing grease or porous lubricants for lubricating the rollers. The roller retainer has protruding parts that extend continuously and span all the adjacent receiving holes, so that the roller retainer has higher rigidity.(b) Description of Prior ArtA linear guide with limited travel comprises two rails with fixed length, which can be moved against each other. Between the two fixed length rails is a slider which assists the relative movement of the two fixed length rails. The slider includes a retainer having a certain length and a plurality of rolling elements spaced apart from each other by the retainer. The rolling bodies roll on the running surfaces and bear the load. Linear guides with a limited stroke are generally used in machining processes with short travel paths.U.S. Patent No. US08360644B2 entitled "LINEAR MOTION WITH CAGE GUIDE UNIT" describes that the linear motion guide unit includes a plate-shaped cage. The cage has longitudinally arranged openings. The rollers are obliquely disposed in the respective openings. Adjacent recesses 23 and lips 2 are arranged around the openings to hold the rolling elements.U.S. Patent No. US08360644B2 describes that the cage is plate-shaped. The holder is thinner and less rigid. For sufficient strength of the cage, the number of openings arranged in the longitudinal direction of the cage has to be reduced, wherein a smaller number of rolling bodies is provided in the openings, which leads to a lower load on the linear guide with limited stroke. Furthermore, this patent does not take into account how the rolling bodies are lubricated in order to ensure a smooth rolling.As in German Patent No. DE3709039C2 entitled "LINEAR ROLLER BEARING HOLDER", the holder consists of a plurality of holder units connected in series. The holder units each have a receiving groove. A rolling element is inserted into the receiving groove. The adjacent holder units are connected to each other at the end side by locking members 13 and are elastically locked in locking holes 16. In order to facilitate elastic deformation of the locking parts 13 to be locked in the locking holes 16, the locking parts 13 each have a through hole for the space required for deformation.As in German Patent No. DE3709039C2, the retainer covers the rolling elements (pocket type) and has higher rigidity than the above-mentioned U.S. Pat. No. US08360644B2. However, the through hole of the locking part 13 is designed for the space formed for the deformation of the locking part. This patent does not address the question of how the rolling bodies can be lubricated during rolling in order to ensure a smooth rolling of the rolling bodies.As in Patent No. JP2021012648 entitled "LINEAR GUIDE DEVICE" of Japan, the bracket is comprised of a first segment and a second segment abutting each other. Figures 9 and 10 of the present invention show that the rectangular holder body 40 has anti-fall portions extending longitudinally at the upper and lower corners and segmented protrusions adjacent to the receiving groove at the left and right corners. The rolling elements are held by the fall prevention portions and the segmented protruding parts. In addition, the holder is equipped with a toothed wheel to prevent slipping. On the first segment and on the second segment of the bracket, recesses 25 are formed for receiving the axle of the toothed wheel.Patent No. JP2021012648 of Japan describes that the retainer is provided with the fall preventing portions and the segmented protruding portions to hold the rolling elements and thus further improve the structural rigidity of the retainer. However, the segmented protrusions on the left and right sides do not extend over the entire length of all the rolling elements, and the tensile strength against the axial tensile force generated by the axial sliding of the rails is lower. The present invention does not address the question of how the rolling bodies can be lubricated in order to ensure a smooth rolling of the rolling bodies. When the support is provided with a toothed wheel, the axle of the toothed wheel is connected to the recesses 25 of the support, which can lead to instability of the toothed wheel.SUMMARY OF THE INVENTIONAccording to one aspect of the present invention, a rolling element receptacle is provided. The rolling element receptacle comprises a housing, a plurality of receptacle holes and a plurality of openings. The body extends along a path. In a longitudinal direction, the housing has a polygonal profile and at least four protruding parts protruding from the housing. The receiving holes are distributed in the housing along the path and are located between the protruding parts. The receiving holes are formed at a distance from each other. The receiving holes each receive a rolling element. The openings are formed on the housing and are located between the receiving holes. The openings are connected to the receiving holes. The openings are designed to receive grease or a porous lubricant. At least one of the protruding portions extends along the path and spans all adjacent receiving holes.Preferably, the receiving holes each have a width that is somewhat greater than that of the rolling element. The receiving holes each have an opening on the housing. The opening has a width which is somewhat smaller than that of the rolling element. The rolling element is forcibly inserted into the receiving hole through the opening without dropping freely. The rolling element has a rolling surface which protrudes from the housing.Preferably, the rolling body receptacle consists of a first segment and a second segment. The first segment and the second segment extend along the path and are interconnected at a coupling surface by respective coupling members.Preferably, a spindle is integrally formed with the housing in the longitudinal direction. A toothed wheel is pivotally mounted on the spindle. The housing has a notch corresponding to the position of the toothed wheel. The toothed wheel partially protrudes from the notch. The rolling element receptacle consists of a first segment and a second segment. The first segment and the second segment extend along the path and are interconnected at a coupling surface by respective coupling members. The clutch surface is parallel to an axis of the toothed wheel.Preferably, the path is a straight path or a curved path.According to another aspect of the present invention, a slider is provided. The slide consists of the aforementioned roller body receptacle. The receiving holes each receive the rolling element.The rolling body is preferably a roller or a ball.Preferably, the rolling axes of adjacent rolling bodies in the receiving holes are offset with respect to one another.According to a further aspect of the present invention, a linear guide with a limited stroke is provided. The linear guide with limited stroke consists of the aforementioned rolling body receptacle and two rails with fixed length. The receiving holes each receive the rolling element. The two fixed-length rails each have a raceway groove on the opposite sides. The raceway grooves of the two fixed-length rails define a raceway surface in the longitudinal direction. The raceway surface has a contour which corresponds to that of the rolling body receptacle. The rolling body receptacle is arranged in the raceway surface. The rolling element rolls along the raceway groove. The raceway surface is formed with a rail gap and a receiving groove in the longitudinal direction. The protruding parts are located in the rail gap and in the receiving groove.Preferably, the two fixed-length rails each have a tooth groove corresponding to the toothed wheel. The toothed wheel engages the toothed groove.According to the above technical features, the present invention can achieve the following effects: 1. the roller housing has a plurality of openings formed between the housing housing receiving holes. The openings are connected to the adjacent receiving holes. The opening stores grease or a porous lubricant for lubrication when the rolling element rolls, which can prevent the rolling element from rolling unevenly and causing vibrations of the two fixed-length rails when they are moved against each other. 2. in the longitudinal section of the roller body receptacle, the protruding parts pass through the corners of each receptacle hole in the axial direction. All the protruding portions distributed around the corners of the receiving holes provide better connection strength between the adjacent receiving holes, whereby the rigidity of the roller receptacle can be effectively improved and the roller receptacle is given a greater tensile strength in the axial direction. Due to the protruding parts for improving the rigidity of the roller body receptacle, the roller body receptacle of the same length has more receiving holes for receiving more roller bodies, so that the linear guide with a limited stroke has a higher load capacity and a breakage of the housing due to external forces during assembly or use is prevented. 3. in the longitudinal section of the roller body receptacle, the receptacle space of the receptacle hole extends as far as the protruding parts, so that the exposed surface of the roller has a larger contact area. 4. the toothed wheel is arranged in the middle region of the roller body receptacle and engages in the toothed grooves of the two rails with a fixed length. As the two fixed length rails move against each other, the roller retainer is held in place and slides on the two fixed length rails without creep. The spindle of the toothed wheel is formed integrally with the housing of the roller housing, which does not have to be separately mounted in order to ensure squareness of the spindle and to allow stable rotation of the toothed wheel.BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a perspective view of a roller retainer and the slider according to a first embodiment of the present invention;FIG. 2 shows a sectional view of FIG. 1 ;FIG. 3 shows a sectional view of FIG. 2 ;FIG. 4 shows a further sectional view of FIG. 2 ;FIG. 5 is a perspective view of the linear guide with limited stroke of the present invention;FIG. 6 shows a front view of FIG. 5 ;FIG. 7 shows a perspective view of the roller body receptacle according to a second exemplary embodiment of the present invention;FIG. 8 is a front view of FIG. 7 ;FIG. 9 shows a sectional view of FIG. 7 ;FIG. 10 is a perspective view of the slider according to the second embodiment of the present invention;FIG. 11 is a perspective view of the linear guide with limited stroke according to the second embodiment of the present invention;FIG. 12 is an exploded view of the roller retainer according to a third embodiment of the present invention, the roller retainer being composed of the first segment and the second segment;FIG. 13 is a perspective view of the roller retainer according to the third embodiment of the present invention, the roller retainer being composed of the first segment and the second segment;FIG. 14 is a planar schematic view of the roller retainer according to the third embodiment of the present invention, the roller retainer being composed of the first segment and the second segment;FIG. 15 shows a sectional view of FIG. 14 ;FIG. 16 shows a further sectional view of FIG. 14 ;FIG. 17 is an exploded view of the roller retainer according to a fourth embodiment of the present invention, the roller retainer being composed of the first segment and the second segment;FIG. 18 is a front view of the segment in FIG. 17 ;FIG. 19 is a sectional view of the segment in FIG. 17 ;FIG. 20 is a perspective view of the roller retainer according to the fourth embodiment of the present invention, the roller retainer being composed of the first segment and the second segment;FIG. 21 is a planar schematic view of the roller retainer according to the fourth embodiment of the present invention, the roller retainer being composed of the first segment and the second segment;FIG. 22 is a sectional view of FIG. 21 ;FIG. 23 is a perspective view of the roller retainer and the slider according to a fifth embodiment of the present invention;FIG. 24 shows a sectional view of FIG. 23 ;FIG. 25 is a sectional view of FIG. 24 ;FIG. 26 is a perspective view of the linear guide with limited stroke according to the fifth embodiment of the present invention;FIG. 27 is a front view of the segment in FIG. 26 ;FIG. 28 is a perspective view of the roller retainer and the slider according to a sixth embodiment of the present invention; andFIG. 29 is a perspective view of the roller retainer and the slider according to a seventh embodiment of the present invention.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTSThe embodiments of the present invention will be described below by way of example with reference to the accompanying drawings.The present invention relates to a roller retainer, a slider and a linear guide with limited stroke. FIG. 1 shows a roller receptacle 10 and a sliding piece 20 according to a first exemplary embodiment of the present invention. The roller retainer 10 is integrally formed and includes a housing 1. the housing 1 is polygonal and is made of a rigid material such as stainless steel. The housing 1 extends along a path. The path may be a straight or curved path as desired. In this embodiment, the housing 1 extends along a straight line, for example, in the axial direction. A plurality of rolling elements 2 are inserted into the housing 1 of the rolling element receptacle 10 to form the slide member 20. In this exemplary embodiment, the rolling bodies 2 are rollers. The rolling axes of the adjacent rolling bodies 2 are offset from each other. For example, the rolling axes of adjacent rolling elements 2 are offset relative to one another by 90 degrees.FIGS. 2 and 3 show that the profile of the housing 1 has a plurality of corners 11 in the longitudinal direction P. In this embodiment, the housing 1 is rectangular and comprises four corners 11 with at least four protruding parts 12 protruding from the housing 1. In this embodiment, the housing 1 has four protruding parts 12 protruding from the housing 1 at the four corners 11. The rolling element receptacle 10 has a plurality of receptacle holes 13 which are distributed in the housing 1 along the axial direction A and are located between the protruding parts 12. The receiving holes 13 are arranged at a distance D from each other. The protruding parts 12 extend along the axial direction A and span all the receiving holes 13. After the rolling element 2 is inserted into the receiving hole 13, the rolling element 2 has a rolling surface 21 which protrudes from the housing 1. A plurality of openings 14 are formed between the receiving holes 13 of the housing 1. The openings 14 are connected to the receiving holes 13. In the opening 14 there is grease or a porous lubricant. In this exemplary embodiment, a porous lubricant 3, for example, is provided in the opening 14.FIG. 4 shows that the receiving hole 13 in this embodiment has an opening 15 on the housing 1. The width of the opening 15 is slightly smaller than the width of the rolling element 2, and the housing 1 allows slight elastic deformation, so that the rolling element 2 is forcibly inserted into the receiving hole 13 through the opening 15. The rolling element 2 cannot freely fall out of the opening 15 after being inserted into the receiving hole 13.FIGS. 5 and 6 show that a linear linear guide 30 with limited stroke according to the first embodiment of the present invention has two fixed-length rails 4 and the slider 20 mounted between the two fixed-length rails 4. The slider 20 supports the two fixed-length rails 4 in movement against each other. The opposite sides of the two fixed-length rails 4 each have a raceway groove 41. The inner surface of the raceway groove 41 is defined as a raceway surface 411. The raceway grooves 41 of the two fixed-length rails 4 define a raceway surface 42 and the slider 20 is disposed in the raceway surface 42 so that the rolling elements 2 roll on the raceway surfaces 411 of the raceway grooves 41 of the two fixed-length rails 4. In the longitudinal direction P, the raceway surface 42 is formed with a rail gap 421 and a receiving groove 422. The protruding parts 12 are located in the rail gap 421 and in the receiving groove 422. Fig. 6 shows that two fixed-length rails 4 are located on the left and right sides. The two fixed-length rails 4 are each formed with the receiving groove 422 for receiving the protruding parts 12 on the left and right sides of the rolling element receiver 10. The two rails 4 with fixed length are spaced apart from one another and form the rail gaps 421 on the upper and lower sides for receiving the protruding parts 12 on the upper and lower sides of the rolling body receptacle 10.FIG. 3 shows that the porous lubricant 3 which is arranged in the opening 14 between two adjacent receiving holes 13 of the body 1 in each case provides for lubrication when the rolling element 2 rolls. This can prevent the rolling element 2 from rolling uneasy and the two fixed-length rails 4 from vibrating when they are moved against each other.FIGS. 7, 8 and 9 show a roller body holder 10 according to a second exemplary embodiment of the present invention. The rolling element receptacle 10 has a notch 19 in the central region of the housing 1 in the axial direction A. A rotatable toothed wheel 18 is connected to the notch 19. The toothed wheel 18 partially protrudes from the notch 19. In the longitudinal direction P, the length of the toothed wheel 18 is slightly greater than the length of the two opposing protruding parts 12.In this embodiment, a spindle is integrally formed with the housing 1. The toothed wheel 18 is pivotally mounted on the spindle 17. By the spindle 17 formed integrally with the housing 1, the toothed wheel 18 can be easily mounted on the housing 1, whereby the squareness of the spindle 17 can be secured so that the toothed wheel 18 can stably rotate.In the second embodiment, all the receiving holes 13 located on one side of the toothed wheel 18 along the axial direction A are defined as a set of "adjacent" receiving holes 13; all the receiving holes 13 located on the other side of the toothed wheel 18 along the axial direction A are defined as another set of "adjacent" receiving holes 13. The two receiving holes 13 closest to and separated from the toothed wheel 18 are located on the two sides of the toothed wheel 18, the two spaced receiving holes 13 are not adjacent to each other and are not "adjacent" which receive the holes 13, as defined in the present invention.FIGS. 10 and 11 show that a plurality of rolling elements 2 are arranged in the housing 1 of the rolling element receptacle 10 in order to form the sliding piece 20. The linear restricted stroke guide 30 of the second embodiment of the present invention has a toothed groove 44 extending along the axial direction A on each of the two fixed length rails 4. When the slider 20 is mounted between the two fixed-length rails 4, the toothed wheel 18 engages in the toothed groove 44. Thereby, the slider 20 can be held in position by the engagement of the toothed wheel 18 and the toothed groove 44 upon relative movement of the two fixed-length rails 4 to slide on the two fixed-length rails 4 without creep.FIGS. 12 and 13 show a roller body receptacle 10 with a toothed wheel 18 according to a third exemplary embodiment of the present invention. The roller retainer 10 is an assembled roller retainer and includes a first segment 101 and a second segment 102 extending along the linear path. The first segment 101 and the second segment 102 are coupled to one another at a coupling surface by corresponding coupling parts in order to form the rolling body receptacle 10. The clutch surface includes a first clutch surface 1013 on the first segment 101 and a second clutch surface 1023 on the second segment 102. In this exemplary embodiment, the first segment 101 and the second segment 102 are formed in such a way that the rolling element receptacle 10 is halved along the diagonally protruding parts 12 of the rolling element receptacle 10, such that the opposite side of the first segment 101 and the opposite side of the second segment 102 in the tangential direction each have half of the protruding part 12. After assembling the first segment 101 and the second segment 102, the entire protruding parts 12 are formed. The coupling parts comprise a plurality of first protrusions 1011 and a plurality of first holes 1012 arranged offset and spaced apart from each other on the first coupling surface 1013, and a plurality of second protrusions 1021 and a plurality of second holes 1022 arranged offset and spaced apart from each other on the second coupling surface 1023. The first segment 101 and the second segment 102 are connected to one another to form the rolling body receptacle 10. In this embodiment, half of the spindle 171 is integrally formed with the first segment 101 and the second segment 102.FIGS. 14, 15 and 16 show that when the first segment 101 and the second segment 102 abut each other, the first coupling surface 1013 and the second coupling surface 1023 are fastened to each other, the first protrusions 1011 are inserted into the second holes 1022, the second protrusions 1021 are inserted into the first holes 1012, and the half spindles 171 of the first segment 101 and the second segment 102 are fastened to form the spindle 17 of the toothed wheel 18. In this exemplary embodiment, after the rolling bodies 2 and the spindle 17 have been placed on the first segment 101 or the second segment 102, the second segment 102 or the first segment 101 is assembled. In this way, the roller receptacle 10 can be easily formed and manufactured, and the rollers 2 and the spindle 17 can be easily installed.FIGS. 17, 18 and 19 show a rolling element receptacle 10 with a toothed wheel 18 according to a fourth exemplary embodiment of the present invention. The roller retainer 10 is a compound roller retainer and includes a first segment 101 and a second segment 102 extending along the linear path. The first segment 101 and the second segment 102 are coupled to one another on a coupling surface by means of corresponding coupling parts in order to form the rolling body receptacle 10. The clutch surface includes a first clutch surface 1013 on the first segment 101 and a second clutch surface 1023 on the second segment 102. In this exemplary embodiment, the first segment 101 and the second segment 102 are formed in this way that the rolling element receptacle 10 is halved along the diagonally protruding parts 12 of the rolling element receptacle 10. In this embodiment, the first segment 101 and the second segment 102 each have a completely protruding part 12 on the opposite sides in the tangential direction. In this embodiment, since the housing 1 of the roller retainer 10 is polygonal and the protruding parts 12 protrude from the respective corners 11, a first recessed portion 1014 is formed on the protruding parts 12 of the first segment 101 in the tangential direction to receive the corner 11 on the opposite side of the second segment 102 when the first segment 101 and the second segment 102 abut each other, while a second recessed portion 1024 is formed on the protruding portion 12 of the second segment 102 in the tangential direction to receive the corner 11 on the opposite side of the first segment 101 when the first segment 101 and the second segment 102 abut each other. In this embodiment, two opposite ends of the first segment 101 include a first engagement block 1015 extending from the protruding part 12 and a corresponding first engagement groove 1016 opposing the first engagement block 1015, and two opposite ends of the second segment 102 include a second engagement block 1025 extending from the protruding part 12 and a corresponding second engagement groove 1026 opposing the second engagement block 1026. The coupling parts include a plurality of first protrusions 1011 and a plurality of first holes 1012 disposed side by side on the first coupling surface 1013, and a plurality of second protrusions 1021 and a plurality of second holes 1022 disposed side by side on the second coupling surface 1023. The first segment 101 and the second segment 102 are coupled to form the rolling element receptacle 10. In this embodiment, half of the spindle 171 is integrally formed with each of the first segment 101 and the second segment 102. The first segment 101 and the second segment 102 are coupled to form the rolling element receptacle 10. In this embodiment, half of the spindle 171 is integrally formed with each of the first segment 101 and the second segment 102. (Since the first segment 101 and the second segment 102 are symmetric, the first segment 101 may be rotated 180 degrees during production to serve as the second segment 102, both the first segment 101 and the second segment 102 are labeled in FIGS. 18 and 19.)FIGS. 20, 21, and 22 show that when the first segment 101 and the second segment 102 abut, the first engagement block 1015 at the end of the first segment 101 engages the second engagement groove 1026 at the end of the second segment 102, while the second engagement block 1025 at the end of the second segment 102 engages the first engagement groove 1016 at the end of the first segment 101. The first coupling surface 1013 and the second coupling surface 1023 are connected to each other such that the first recessed part 1014 of the first segment 101 receives the corner 11 on the opposite side of the second segment 102 and the second recessed part 1024 of the second segment 102 receives the corner 11 on the opposite side of the first segment 101. The first protrusions 1011 are inserted into the second holes 1022, the second protrusions 1021 are inserted into the first holes 1012, and the half spindles 171 of the first segment 101 and the second segment 102 are joined to form the spindle 17 of the toothed wheel 18. In this embodiment, after the rolling elements 2 and the spindle 17 are fitted on the first segment 101 or the second segment 102, the second segment 102 or the first segment 101 is assembled. In this way, the roller receptacle 10 can be easily formed and manufactured, and the rollers 2 and the spindle 17 can be easily installed.Figs. 23 to 25 show a roller retainer 10 and a slider 20 according to a fifth embodiment of the present invention. In contrast to the above-mentioned exemplary embodiments, the rolling bodies 2 of this exemplary embodiment are balls. This embodiment shows that the present invention can use rollers and balls as rolling elements 2 which are most frequently used in linear motion rails.Figs. 26 and 27 show that the linear restricted stroke guide 30 according to the fifth embodiment of the present invention comprises two fixed-length rails 4 and the slider 20 mounted between the two fixed-length rails 4. The rolling elements 2 roll along the raceway surfaces 411 to support the two fixed-length rails 4 in movement relative to each other.FIG. 28 illustrates a roller retainer 10 and a slider 20 according to a sixth embodiment of the present invention. The rolling elements 2 of this exemplary embodiment are balls, while a toothed wheel 18 is provided on the rolling element receptacle 10.FIG. 29 shows a roller retainer 10 and a slider 20 according to a seventh embodiment of the present invention. The rolling elements 2 of this exemplary embodiment are balls, while a toothed wheel 18 is provided on the rolling element receptacle 10. The rolling element receptacle 10 consists of the first segment 101 and the second segment 102, which are fastened to one another.Although the specific embodiments of the present invention have been described in detail for purposes of illustration, various modifications and improvements may be made without departing from the spirit and scope of the present invention. The present invention is therefore intended to be limited only by the appended claims.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedUS 08360644B2 [0003, 0004, 0006]DE 3709039C2 [0005, 0006]JP 2021012648 [0007,0008]

Claims

A rolling element receptacle (10) comprising a housing (1) extending along a path in a longitudinal direction, the housing (1) having a polygonal profile and at least four protruding parts (12) protruding from the housing (1); a plurality of receiving holes (13) distributed in the housing (1) along the path and arranged between the protruding parts (12), the receiving holes (13) being spaced apart from each other by a distance (D) and the receiving holes (13) each receiving a rolling element (2); a plurality of openings (14) formed on the housing (1) and located between the receiving holes (13), the openings (14) being connected to the receiving holes (13) and the openings (14) being configured for storing grease or a porous lubricant; wherein at least one of the protruding parts (12) extends along the path and spans all adjacent receiving holes (13).The rolling element receptacle (10) according to claim 1, wherein the receptacle holes (13) each have a width that is slightly larger than that of the rolling element (2), the receptacle holes (13) each have an opening (15) on the housing (1), the opening (15) has a width that is slightly smaller than that of the rolling element (2), the rolling element (2) is inserted through the opening (15) under the action of force into the receptacle hole (13) without dropping freely, wherein the rolling element (2) has a rolling surface protruding from the housing (1).The rolling element receptacle (10) according to claim 1 or 2, wherein the rolling element receptacle (10) consists of a first segment (101) and a second segment (102), wherein the first segment (101) and the second segment (102) extend along the path and are coupled to one another at a coupling surface by means of corresponding coupling parts.The rolling element holder (10) according to any one of claims 1-3, wherein a spindle (17) is integrally formed with the housing (1) in the longitudinal direction (P), a rotatable toothed wheel (18) is pivotally attached to the spindle (17), the housing (1) has a notch (19) corresponding in position to the toothed wheel (18), the toothed wheel (18) partially protruding from the notch (19).The rolling element receptacle (10) according to any of claims 1-4, wherein the rolling element receptacle (10) consists of a first segment (101) and a second segment (102), the first segment (101) and the second segment (102) extend along the path and are coupled to each other on a coupling surface by means of corresponding coupling parts, while the coupling surface runs parallel to an axis of the toothed wheel (18).The rolling element receptacle (10) according to any one of claims 1-5, wherein the path is a straight path or a curved path.A slider comprising the rolling element receptacle (10) according to any one of claims 1-6, wherein a rolling element (2) is received in the receiving holes (13).The slider (20) according to claim 7, wherein the rolling element (2) is a roller or a ball.The slider (20) according to claim 7 or 8, wherein the rolling axes of the adjacent rolling elements (2) in the receiving holes (13) are offset from each other.A linear guide with limited stroke (30), comprising the rolling element receptacle (10) according to any one of claims 1-6 and two fixed length rails (4), wherein the receptacle holes (13) each receive the rolling element (2), opposite sides of the two fixed length rails (4) each have a raceway groove (41), the raceway grooves (41) of the two fixed length rails (4) define a raceway surface (42) in the longitudinal direction (P), the raceway surface (42) has a contour corresponding to the contour of the rolling element receptacle (10); the rolling element receptacle (10) is arranged in the raceway surface (42), the rolling element (2) rolls along the raceway groove (41); the raceway surface (42) is formed with a rail gap (421) and a receiving groove (422) in the longitudinal direction (P), and the protruding parts (12) are located in the rail gap (421) and the receiving groove (422).The linear guide of limited stroke (30) according to claim 10, wherein the two fixed-length rails (4) each have a toothed groove (44) corresponding to the toothed wheel (18), the toothed wheel (18) engaging with the toothed groove (44).

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