Bearing for fishing reel spool
By using a thin inner ring design and silicon nitride balls, combined with a stainless steel outer ring and dust cover, the problems of slow start-up and rusting of fishing reel spool bearings have been solved, improving casting performance and service life.
Patent Information
- Application Number
- CN202520669879.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-10
AI Technical Summary
Existing fishing reel spool bearings suffer from problems such as slow spool start-up, difficulty in casting small-weight baits, short casting distances, and susceptibility to rust.
It features a thin inner ring design, silicon nitride balls, and a stainless steel outer and inner ring, along with a dust cover structure, to reduce friction and prevent corrosion.
It improves the spool's start-up speed and casting performance, increases the casting capacity for small-weight baits, extends service life, and prevents corrosion.
Smart Images
Figure CN223839565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fishing gear processing and production technology, and in particular to a structural improvement of a fishing reel spool bearing. Background Technology
[0002] The fishing reel spool is the core component of a fishing reel, and the performance of its spool bearing directly affects casting smoothness, durability, and corrosion resistance. Current technology has the following problems with spool bearings:
[0003] 1. When ordinary bearings are used on fishing reel spools, the spool starts up slowly;
[0004] 2. When ordinary bearings are used on fishing reel spools, it is difficult to cast small-weight baits over short distances, and the line is prone to breakage.
[0005] 3. Ordinary bearings used in fishing reel spools are prone to rusting. Utility Model Content
[0006] To solve the above technical problems, a bearing for fishing reel spools with fast spool start-up speed is provided.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a bearing for a fishing reel spool, comprising an outer ring, an inner ring coaxially disposed inside the outer ring, balls disposed between the inner and outer rings, and a cage for uniformly distributing the balls. The inner ring is thinner than the outer ring, and the clearance between the balls and the outer raceway of the inner ring and the inner raceway of the outer ring is 0.006-0.012mm. The balls are made of silicon nitride. The outer diameter of the outer ring is 10mm. - 0 0.007 The outer ring has an inner diameter of 6.48 mm, the inner ring has an outer diameter of 4.77 mm, and the inner ring has a thickness of 0.85 mm. - 0 0.007 The inner groove of the outer ring used to accommodate the ball and the outer groove of the inner ring have a depth fluctuation range of ±0.2mm, and the ball radius is 0.6mm.
[0008] According to this utility model, the outer ring surface is further provided with a dust cover, and a groove for accommodating the dust cover is formed on the outer ring surface.
[0009] According to this utility model, the number of balls is further specified as eight.
[0010] According to this utility model, the inner diameter of the groove for installing the dust cover is 7.15mm.
[0011] According to this utility model, the outer ring, inner ring, and dust cover are all made of stainless steel, and the cage is made of nylon.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by reducing the thickness of the inner ring, the overall bearing weight is reduced, thus solving the problem of spool start-up speed and casting performance of small-weight baits;
[0013] This invention solves the problem of bearing rust by changing the material of the ball bearings and adding a dust cover to the outer ring surface, thereby reducing the probability of liquid impurities entering the bearing. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the bearing for the fishing reel spool in Embodiment 1 of this utility model;
[0015] Figure 2 This is a schematic diagram of the bearing for the fishing reel spool in Embodiment 2 of this utility model.
[0016] Reference numerals: 100 - outer ring, 200 - inner ring, 300 - ball bearing, 400 - cage, 500 - protective cover. Detailed Implementation
[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.
[0018] This application provides a bearing for fishing reel spools. The fishing reel spool is connected to the inner ring of the bearing, and the rotation of the inner ring drives the rotation of the fishing reel spool, reducing the resistance and friction generated during the rotation of the fishing reel spool. The bearing includes an outer ring 100, an inner ring 200 coaxially disposed inside the outer ring 100, balls 300 disposed between the inner ring 200 and the outer ring 100, a cage 400 for evenly distributing the balls 300, and a dust cover 500. The outer ring 100, inner ring 200, and dust cover 500 are all made of stainless steel, the balls 300 are made of silicon carbide, and the cage 400 is made of nylon. The ball bearing 300 is made of silicon nitride (SI3N4). Due to its relatively high roughness, it produces a unique hissing sound when rotating at high speed, increasing the enjoyment of casting and using the fishing reel. Moreover, since baitcasting reels are generally used in humid environments, the bearing's inner and outer rings are made of stainless steel, the ball bearing is made of silicon nitride (SI3N4), and the cage is made of nylon (PA66), which greatly increases the bearing's rust resistance and extends its service life.
[0019] Specifically, the inner 200mm thickness is thinner than the outer 100mm thickness because the bearing is fixed on the outer ring and rotates on the inner ring. The thinner inner 200mm thickness reduces the overall weight of the spool, thus increasing its starting speed and rotation speed. In baitcasting, this increases the casting ability of smaller lures, meaning you can cast farther with less force, the casting process is smoother, and user comfort is improved.
[0020] Specifically, the outer ring 100 has a groove on its surface for mounting the dust cover 500.
[0021] The installation steps for this bearing are as follows:
[0022] 1. Coaxially assemble the inner ring 200 into the outer ring 100;
[0023] 2. Place the ball bearing 300 between the inner ring 200 and the outer ring 100, separating the inner ring 200 from the outer ring 100;
[0024] 3. Install the cage 400 so that the balls 300 are inside the ball pocket of the cage 400, so that the balls 300 are evenly distributed;
[0025] 4. Install a dust cover 500 on the outer ring 100 surface; keep the inside of the bearing clean, reduce dust and impurities from entering the interior, and prevent the bearing from jamming when rotating.
[0026] Example 1:
[0027] like Figure 1 As shown, a bearing for a fishing reel spool has an outer diameter of 10 mm for the outer ring 100. - 0 0.007 The inner diameter of the groove for mounting the dust cover 500 is 7.15 mm, the inner diameter of the outer ring 100 is 6.48 mm, the outer diameter of the inner ring 200 is 4.77 mm, and the radius of the ball bearing 300 is 0.6 mm. The depth of the inner groove of the outer ring and the outer groove of the inner ring for accommodating the ball bearings has a fluctuation range of ±0.2 mm. The clearance between the ball bearing 300 and the inner and outer grooves is 0.006-0.012 mm. There are eight balls 300. The thickness of the inner ring 200 is 0.85 mm. - 0 0.007 mm.
[0028] Example 2:
[0029] like Figure 2 As shown, a bearing for a fishing reel spool has an outer diameter of 11 mm for the outer ring 100. - 0 0.007The inner diameter of the groove for mounting the dust cover 500 is 8.35mm, the inner diameter of the outer ring 100 is 7.8mm, the outer diameter of the inner ring 200 is 6.0mm, and the radius of the ball bearing 300 is 0.6mm. The depth of the inner groove of the outer ring and the outer groove of the inner ring for accommodating the ball bearings has a fluctuation range of ±0.2mm. The clearance between the ball bearing 300 and the inner and outer grooves is 0.006-0.012mm. There are ten balls 300. The thickness of the inner ring 200 is 0.5mm. - 0 0.007 mm.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A bearing for a fishing reel spool, comprising an outer ring, an inner ring coaxially disposed inside the outer ring, balls disposed between the inner and outer rings, and a cage for uniformly distributing the balls, characterized in that, The inner ring is thinner than the outer ring. The clearance between the balls and the outer raceway of the inner ring and the inner raceway of the outer ring is 0.006-0.012mm. The balls are made of silicon nitride. The outer ring has an outer diameter of 10mm. - 0 0.007 The outer ring has an inner diameter of 6.48 mm, the inner ring has an outer diameter of 4.77 mm, and the inner ring has a thickness of 0.85 mm. - 0 0.007 The inner groove of the outer ring used to accommodate the ball and the outer groove of the inner ring have a depth fluctuation range of ±0.2mm, and the ball radius is 0.6mm.
2. The bearing for a fishing reel spool as described in claim 1, characterized in that, A dust cover is installed on the surface of the outer ring, and a groove is formed on the surface of the outer ring to accommodate the dust cover.
3. The bearing for a fishing reel spool as described in claim 1, characterized in that, The ball bearings consist of eight balls.
4. The bearing for a fishing reel spool as described in claim 2, characterized in that, The inner diameter of the groove is 7.15 mm.
5. The bearing for a fishing reel spool as described in claim 2, characterized in that, The outer ring, inner ring, and dust cover are all made of stainless steel, while the cage is made of nylon.