Anti-locking needle bearing
By designing sealing and lubrication components in needle roller bearings, the problems of wear and seizing caused by impurities are solved, improving sealing and lubrication and extending the service life of needle roller bearings.
Patent Information
- Application Number
- CN202520576354.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Existing needle roller bearings lack effective sealing components, allowing impurities to easily enter, leading to accelerated wear and potential seizure.
A sealing and lubrication assembly was designed, including a sealing gasket, a snap-fit block, a limiting ring, and a lubrication groove. The snap-fit and limiting structure ensures sealing, while the lubrication groove and plug enable uniform injection and distribution of lubricant.
It effectively blocks external impurities from entering, reduces wear, lowers friction, prevents jamming, extends service life, and maintains good lubrication.
Smart Images

Figure CN223676802U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to needle bearing technical field especially relates to a kind of anti-jamming needle bearings. BACKGROUND
[0002] Needle bearing is made of inner ring, outer ring, needle and retainer. Inner ring and outer ring are respectively provided with inner raceway and outer raceway, needle is evenly distributed between two raceways, and position and spacing are maintained by retainer. This design allows it to bear larger load with smaller radial dimension, and is widely used in various mechanical equipment with space and load capacity requirements.
[0003] The existing needle bearing lacks effective sealing assembly when in use, impurities and the like can easily enter the bearing interior, which can easily cause the bearing to wear out and even cause the bearing to jam during high-frequency rotation. UTILITY MODEL CONTENTS
[0004] The utility model discloses a kind of anti-jamming needle bearings to solve the problem that the existing needle bearing lacks effective sealing assembly when in use, impurities and the like can easily enter the bearing interior, which can easily cause the bearing to wear out and even cause the bearing to jam during high-frequency rotation.
[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of anti-jamming needle bearings, including needle bearing assembly, lubricating assembly is arranged on the needle bearing assembly, two ends of the needle bearing assembly are provided with sealing assembly, the needle bearing assembly includes outer ring, retaining frame is installed on the inner side of the outer ring, a plurality of needles are installed on the retaining frame, the sealing assembly includes two sealing pads, the outer side of the sealing pad is distributed with a plurality of clamping blocks, a plurality of clamping grooves are set in the inner side of the outer ring, and the clamping block is arranged in the inside of clamping groove.
[0006] Preferably, the lubricating assembly includes a lubricating groove, the lubricating groove is opened in the inner side of the outer ring, and the top of the outer ring is provided with a feed port.
[0007] Preferably, the inside of the feed port is installed with a plug, and the outer side of the plug is distributed with a plurality of sealing rings.
[0008] Preferably, the side surface of the sealing pad is installed with a limiting ring, and the inner side of the limiting ring is distributed with a plurality of buckle members.
[0009] Preferably, the surface of the outer ring is provided with a mounting groove, and the buckle member is clamped in the inside of the mounting groove.
[0010] Preferably, the inside of the retaining frame is installed with an inner ring, and the sealing pad is arranged at the inner side of the outer ring.
[0011] Compared with the prior art, the utility model has the advantages and positive effects that,
[0012] 1、 The utility model discloses, through the carding block is clamped in the inside of the carding groove, it is convenient to install the sealing washer, subsequently the clasp spare is clamped in the inside of the installation slot, and then make the limit ring be connected with the sealing washer, make the limit ring provide the location effect to the sealing washer, guarantee the stability and reliability of sealing washer installation, and the sealing washer is favorable to provide the sealing effect, effectively blocks the impurity such as dust of outside and enters the inside of the needle bearing assembly, thereby reduce the wear and tear of needle bearing assembly, reduce the occurrence of jamming situation due to impurity, prolong the service life of needle bearing assembly, simultaneously be favorable to avoid lubricating liquid leakage, maintain good lubrication state.
[0013] 2、 The utility model discloses, through using the tool rotation plug, and then be favorable to make the plug separate from the feed port, it is convenient to inject lubricating liquid to the inside of the feed port, and the lubricating liquid passes through lubricating groove and cooperates the rotation of needle simultaneously, thereby be favorable to evenly cover on needle, effectively reduce the friction between needle and outer ring, reduce the heat and wear and tear due to friction, avoid needle and outer ring and jam due to overheating expansion, prolong the service life of needle bearing assembly. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 A three-dimensional structure schematic diagram of the anti-jamming needle bearing is provided for the utility model;
[0015] Figure 2 An expanded structure schematic diagram of the anti-jamming needle bearing is provided for the utility model;
[0016] Figure 3 A bearing assembly exploded structure schematic diagram of the anti-jamming needle bearing is provided for the utility model;
[0017] Figure 4 A partial structure schematic diagram of the anti-jamming needle bearing is provided for the utility model.
[0018] Legend: 1, needle bearing assembly; 101, outer ring; 102, retainer; 103, needle; 104, inner ring; 2, sealing assembly; 201, sealing washer; 202, carding block; 203, carding groove; 204, limit ring; 205, clasp spare; 206, installation slot; 3, lubricating assembly; 301, lubricating groove; 302, feed port; 303, plug; 304, sealing ring. DETAILED DESCRIPTION
[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0021] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: an anti-jamming needle roller bearing, including a needle roller bearing assembly 1, a lubrication assembly 3 on the needle roller bearing assembly 1, and sealing assemblies 2 at both ends of the needle roller bearing assembly 1. The needle roller bearing assembly 1 includes an outer ring 101, a cage 102 is installed on the inner side of the outer ring 101, and a plurality of needle rollers 103 are installed on the cage 102. The sealing assembly 2 includes two sealing gaskets 201, and a plurality of locking blocks 2 are distributed on the outer side of the sealing gaskets 201. 02. Multiple mounting slots 203 are provided on the inner side of the outer ring 101. The mounting block 202 is disposed inside the mounting slot 203. A limit ring 204 is installed on the side of the sealing gasket 201. Several fasteners 205 are distributed on the inner side of the limit ring 204. An installation groove 206 is provided on the surface of the outer ring 101. The fasteners 205 are fastened inside the installation groove 206. The inner ring 104 is installed inside the retainer 102. The sealing gasket 201 is disposed at both ends of the inner side of the outer ring 101.
[0022] In this embodiment, by snapping the mounting block 202 into the mounting groove 203, the installation of the sealing gasket 201 is facilitated. Subsequently, the snap fastener 205 is snapped into the mounting groove 206, thereby causing the limiting ring 204 to connect with the sealing gasket 201. This allows the limiting ring 204 to limit the sealing gasket 201, ensuring the stability and reliability of the sealing gasket 201 installation. The sealing gasket 201 provides a sealing effect, effectively preventing external dust and other impurities from entering the needle roller bearing assembly 1, thereby reducing the wear of the needle roller bearing assembly 1, reducing the occurrence of jamming caused by impurities, and extending the service life of the needle roller bearing assembly 1. At the same time, it helps to prevent lubricant leakage and maintain good lubrication.
[0023] Example 2: As Figures 1-4 As shown, the lubrication assembly 3 includes a lubrication groove 301, which is opened inside the outer ring 101. The top of the outer ring 101 is provided with a feed inlet 302. A plug 303 is installed inside the feed inlet 302, and multiple sealing rings 304 are distributed on the outside of the plug 303.
[0024] In the embodiment, the plug 303 is rotated by using a tool, which facilitates the plug 303 to be separated from the feeding port 302, facilitates the lubricating liquid to be injected into the feeding port 302, the lubricating liquid passes through the lubricating groove 301 and cooperates with the rotation of the needle roller 103, which facilitates the lubricating liquid to be uniformly covered on the needle roller 103, effectively reduces the friction between the needle roller 103 and the outer ring 101, reduces the heat and abrasion caused by the friction, avoids the needle roller 103 and the outer ring 101 from being stuck due to overheat expansion, prolongs the service life of the needle bearing assembly 1, and the plurality of sealing rings 304 are distributed on the outer side of the plug 303, which facilitates the sealing effect.
[0025] The working principle of the embodiment is as follows: in use, the sealing gasket 201 is first installed at both ends of the outer ring 101, the clamping block 202 is clamped in the clamping groove 203, which facilitates the installation of the sealing gasket 201, then the buckle member 205 is clamped in the installation groove 206, the limiting ring 204 is connected with the sealing gasket 201, the limiting ring 204 provides the limiting effect on the sealing gasket 201, guarantees the stability and reliability of the installation of the sealing gasket 201, the sealing gasket 201 facilitates the sealing effect, effectively blocks the impurities such as dust from the outside into the inside of the needle bearing assembly 1, thereby reducing the abrasion of the needle bearing assembly 1, the plug 303 is rotated by using a tool, which facilitates the plug 303 to be separated from the feeding port 302, facilitates the lubricating liquid to be injected into the feeding port 302, the lubricating liquid passes through the lubricating groove 301 and cooperates with the rotation of the needle roller 103, which facilitates the lubricating liquid to be uniformly covered on the needle roller 103, effectively reduces the friction between the needle roller 103 and the outer ring 101, reduces the heat and abrasion caused by the friction, avoids the needle roller 103 and the outer ring 101 from being stuck due to overheat expansion.
[0026] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belong to the protection scope of the present application.
Claims
1. A stick prevention needle bearing comprising a needle bearing assembly (1), characterized in that: The needle bearing assembly (1) is provided with a lubricating assembly (3), both ends of the needle bearing assembly (1) are provided with a sealing assembly (2), the needle bearing assembly (1) comprises an outer ring (101), the inner side of the outer ring (101) is provided with a retainer (102), a plurality of needle rollers (103) are installed on the retainer (102), the sealing assembly (2) comprises two sealing pads (201), a plurality of clamping blocks (202) are distributed on the outer side of the sealing pad (201), a plurality of clamping grooves (203) are formed in the inner side of the outer ring (101), and the clamping blocks (202) are arranged in the clamping grooves (203).
2. The anti-seizure needle bearing of claim 1, wherein: The lubricating assembly (3) comprises a lubricating groove (301), the lubricating groove (301) is formed in the inner side of the outer ring (101), and the top of the outer ring (101) is provided with a feeding port (302).
3. The anti-seizure needle bearing of claim 2, wherein: The inside of the feeding port (302) is provided with a plug (303), and the outer side of the plug (303) is provided with a plurality of sealing rings (304).
4. The anti-seizure needle bearing of claim 1, wherein: The side of the sealing pad (201) is provided with a limiting ring (204), and the inner side of the limiting ring (204) is provided with a plurality of buckle members (205).
5. The anti-seizure needle bearing of claim 4, wherein: The surface of the outer ring (101) is provided with a mounting groove (206), and the buckle member (205) is clamped in the mounting groove (206).
6. The anti-seizure needle bearing of claim 1, wherein: The inside of the retainer (102) is provided with an inner ring (104), and the sealing pad (201) is arranged at both ends of the inner side of the outer ring (101).