Idler arm bearing housing puller apparatus
The idler arm bearing housing puller apparatus addresses inefficiencies and safety hazards in existing methods by using a controlled load mechanism to safely and efficiently separate bearing housings from idler arms, reducing assembly time and preventing damage.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- FNSS SAVUNMA SISTEMLERI A S
- Filing Date
- 2025-09-10
- Publication Date
- 2026-04-23
AI Technical Summary
Existing methods for removing press-fitted bearing housings from idler arms in military tracked vehicles are inefficient, unsafe, and pose occupational hazards, with potential for damage to the idler arm and increased assembly time.
An idler arm bearing housing puller apparatus comprising jaws, a body, a conical sliding piece, and a fastener system that facilitates safe and ergonomic separation of the bearing housing from the idler arm by applying a controlled load through a rotating mechanism.
Facilitates safe, efficient, and time-saving disassembly of bearing housings while minimizing damage to the idler arm and ensuring occupational safety.
Smart Images

Figure TR2025051118_23042026_PF_FP_ABST
Abstract
Description
[0001] DESCRIPTION
[0002] IDLER ARM BEARING HOUSING PULLER APPARATUS
[0003] TECHNICAL FIELD
[0004] The invention relates to an idler arm bearing housing puller apparatus developed to facilitate the disassembly of press-fitted bearing housings located in the idler arm of the suspension system of military tracked vehicles.
[0005] The invention specifically pertains to an idler arm bearing housing puller apparatus comprising jaws and / or a body and / or a support plate and / or a conical sliding piece and / or an intermediate pipe, which, after placing the ends of the bridge onto the upper surface of the idler arm, moves upward by rotation of a fastener located on the bridge and separates the bearing housing from the idler arm.
[0006] STATE OF THE ART
[0007] In tracked vehicles, the idler arm is a component that enables suspension movement and contributes to the formation of the track system. The bearing and housing inside this component are machine elements that provide rotational movement and are press- fitted tightly.
[0008] In the current technique, the bearing housing is attempted to be removed by striking with a hammer and an auxiliary tool from the edge that can be accessed inside the hole. However, due to the heavy grooves of these parts, they are hard to turn upside down and strike. Since it is not possible to strike evenly, the bearing housing becomes more tightly jammed. In addition, it poses occupational health and safety hazards (such as hand injuries, falling parts, etc.). As a result, due to the issues mentioned above in the current technique, and the inadequacy of existing solutions, there has arisen a need for a new economical, practical, and easy-to-use idler arm bearing housing puller apparatus, which necessitated progress in the relevant technical field.
[0009] OBJECTIVE OF THE INVENTION
[0010] The present invention relates to an idler arm bearing housing puller apparatus developed to eliminate the disadvantages mentioned above and to bring new advantages to the relevant technical field, intended to facilitate the disassembly of press-fitted bearing housings located in the idler arm of military tracked vehicles. The most important objective of the invention is that the application process is easy and safe. Therefore, it is appropriate for occupational health and safety. Another important objective of the invention is to reduce assembly time and provide labor savings.
[0011] Another key objective of the invention is to prevent damage that may occur in the idler arm.
[0012] Another important objective of the invention is its ergonomic structure and suitability for mass production.
[0013] The structural and characteristic features of the invention, as well as all its advantages, will be understood more clearly through the drawings and detailed description provided below, and therefore the evaluation should also be made by taking these drawings and detailed description into consideration. DRAWINGS TO HELP UNDERSTAND THE INVENTION
[0014] FIGURE 1: Illustration of the idler arm bearing housing puller apparatus subject to the invention.
[0015] FIGURE 2: Sectional view of the idler arm bearing housing puller apparatus subject to the invention with jaws in the open position.
[0016] FIGURE 3: Sectional view of the idler arm bearing housing puller apparatus subject to the invention with jaws in the open position.
[0017] FIGURE 4: Illustration of the disassembled state of the idler arm bearing housing puller apparatus subject to the invention.
[0018] FIGURE 5: Illustration of the idler arm bearing housing puller apparatus subject to the invention.
[0019] FIGURE 6: Sectional view of the apparatus during the pulling process.
[0020] FIGURE 7: Sectional view of the apparatus during the pulling process.
[0021] FIGURE 8: Sectional view of the apparatus during the pulling process.
[0022] REFERENCE NUMBERS
[0023] 10. Body
[0024] 20. Conical Sliding Piece
[0025] 30. Jaw
[0026] 40. Elastic Element
[0027] 50. Intermediate Pipe
[0028] 60. Fastener
[0029] 70. Stud with Foot
[0030] 80. Bridge
[0031] 90. Support Plate
[0032] 100. Base Plate
[0033] 110. Fixing Plate
[0034] 120. Centering Seat 130. Limiter
[0035] 140. Idler Arm
[0036] 150. Bench
[0037] 160. Bearing Housing
[0038] DETAILED DESCRIPTION OF THE INVENTION
[0039] In this detailed description, the preferred embodiments of the idler arm bearing housing puller apparatus are explained only for better understanding of the subject and in a nonlimiting manner.
[0040] In tracked vehicles, the idler arm is a component that enables suspension movements and forms a part of the track system. The bearing and housing inside this component are machine elements that provide circular motion and are press-fitted tightly. Figures 1-8 show the idler arm bearing housing puller apparatus and its details. In the invention, the idler arm (140) is placed onto the base plate (100), seated in the centering seat (120), and ensured to be in contact with the limiters (130). Then, while the jaws (30) of the apparatus are in closed position (within the body (10)), they are inserted into the idler arm (140), and the fastener (60) located on the intermediate pipe (50) is rotated to apply load onto the intermediate pipe (50), pushing the conical sliding piece (20) between the jaws (30), which causes them to open outward from inside the body (10) until they reach the outer diameter of the bearing housing (160). The bridge (80) is attached to the stud with foot (70), and the ends of the bridge (80) rest on the upper surface of the idler arm (140). Then, the fastener (60) located on the bridge (80) is rotated, causing the stud with foot (70) to tighten. The jaws (30), body (10), support plate (90), conical sliding piece (20), and intermediate pipe (50) will move upward together with the bearing housing (160), separating the bearing housing (160) from the idler arm (140). In the invention, when the jaws (30) are closed, they are located inside the body (10). The elastic element (40) prevents the jaws (30) from coming out of the body (10) on their own. Here, the body (10), conical sliding piece (20), intermediate pipe (50) are connected to the stud with foot (70). The support plate (90), which is connected to the body via the fastener (60), prevents the stud with foot (70) from coming out of the body (10).
[0041] In the invention, the base plate (100) enables the assembly process to be carried out on the bench (150). The fixing plate (110) ensures that the base plate (100) is fixed to the bench (150) by resting on it.
[0042] The scope of protection of this application is defined in the claims section and is not limited to what is described above merely by way of example. It is clear that a person skilled in the art can implement variations based on the innovation presented and can use similar structures to apply this configuration in other fields with equivalent functions in the related art. Therefore, it is evident that such configurations would lack novelty and, particularly, would not meet the criteria of overcoming the state of the art.
Claims
CLAIMS1- The invention relates to an idler arm bearing housing puller apparatus developed for facilitating the disassembly of press-fitted bearing housings located in the idler arm of the suspension system of military tracked vehicles, characterized by; comprising jaws (30) and / or a body (10) and / or a support plate (90) and / or a conical sliding piece (20) and / or an intermediate pipe (50), which separate the bearing housing (160) from the idler arm (140) by moving upward after placing the ends of the bridge (80) onto the upper surface of the idler arm (140) and rotating the fastener (60) located on the bridge (80).2- The apparatus according to claim 1, characterized by; having at least one jaw (30) which emerges outward from within the body (10) as the result of rotation of the fastener (60) and the downward motion of the conical sliding piece (20), allowing the bearing housing (160) to separate from the idler arm (140).3- The apparatus according to claim 1, characterized by; having a conical sliding piece (20) that, through rotation of the fastener (60), moves downward and causes the jaws (30) to emerge outward from within the body (10).4- The apparatus according to claim 1, characterized by; having a body (10) that retains the jaws (30) and serves as their housing.5- The apparatus according to claim 1, characterized by; having an elastic element (40) that holds the jaws (30) within the body (10) and prevents them from emerging out of the body (10) on their own.6- The apparatus according to claim 1, characterized by; having a stud with foot (70) that supports the body (10) and / or conical sliding piece (20) and / or intermediate pipe (50), and that moves upward upon rotation of the fastener (60). 7- The apparatus according to claim 1, characterized by; having a support plate (90) that prevents the stud with foot (70) from coming out or falling from the body (10).
Citation Information
Patent Citations
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Internal bearing puller tool
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Bushing removal tool
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