CN210290480U - Ball bearing capable of preventing sealing ring from falling off - Google Patents
Ball bearing capable of preventing sealing ring from falling off Download PDFInfo
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- CN210290480U CN210290480U CN201921174175.9U CN201921174175U CN210290480U CN 210290480 U CN210290480 U CN 210290480U CN 201921174175 U CN201921174175 U CN 201921174175U CN 210290480 U CN210290480 U CN 210290480U
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- ring
- ball bearing
- snap ring
- sealing
- sealing ring
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Abstract
A ball bearing for preventing a sealing ring from falling off belongs to the technical field of bearings and comprises a ball bearing, wherein the ball bearing comprises an outer ring, an inner ring, a steel ball group, a front sealing ring and a back sealing ring, the steel ball group is arranged between the outer ring and the inner ring, the front sealing ring is arranged on one side of the front side between the outer ring and the inner ring, the back sealing ring is arranged on one side of the back side between the outer ring and the inner ring, the front sealing ring and the back sealing ring are symmetrically arranged on the front side and the back side of the ball bearing, and the front sealing ring and the back sealing ring respectively comprise an outer sealing lip close to the outer; the front snap ring and the back snap ring have the same structure and respectively comprise a circular ring part, a cylindrical part and a central hole; the front snap ring and the back snap ring are respectively arranged on the front surface and the back surface of the ball bearing, the front snap ring is arranged from the front surface of the ball bearing to the back surface direction, and the back snap ring is arranged from the back surface of the ball bearing to the front surface direction; the utility model has the advantages that: the sealing ring is prevented from falling off.
Description
Technical Field
The utility model relates to a ball bearing, in particular to prevent ball bearing that sealing washer drops belongs to bearing technical field.
Background
In the assembly process of the common ball bearing, a sealing ring is easy to fall off and break, the assembly performance is poor, the common ball bearing is easy to loosen in the use process, and dust is easy to invade into the inner cavity of the ball bearing to influence the normal operation of the bearing. According to the use requirements of customers, the finished product is matched with the shaft and then operates, and the bearing still keeps a basic form after operating for tens of thousands of times in high and low temperature environments, so that the phenomena of cover falling and the like are not allowed to occur. In the actual operation process, the inner ring of the bearing is heated to expand, so that the sealing ring is extruded out and is separated from the finished product.
SUMMERY OF THE UTILITY MODEL
The utility model aims at above-mentioned prior art in, the sealing washer easily drops, the defect of easy fracture, provides a prevent ball bearing that the sealing washer drops, can reach the purpose that prevents the sealing washer and drop.
In order to realize the purpose, the utility model adopts the technical scheme that: a ball bearing for preventing a sealing ring from falling off comprises a ball bearing, wherein the ball bearing comprises an outer ring, an inner ring, a steel ball group, a front sealing ring and a back sealing ring, the steel ball group is arranged between the outer ring and the inner ring, the front sealing ring is arranged on one side of the front side between the outer ring and the inner ring, the back sealing ring is arranged on one side of the back side between the outer ring and the inner ring, the front sealing ring and the back sealing ring are symmetrically arranged on the front side and the back side of the ball bearing, and the front sealing ring and the back sealing ring respectively comprise an outer sealing lip close to the outer side, an inner sealing lip close to;
the front snap ring and the back snap ring have the same structure and respectively comprise a circular ring part, a cylindrical part and a central hole; the front snap ring and the back snap ring are respectively arranged on the front surface and the back surface of the ball bearing, the front snap ring is arranged from the front surface of the ball bearing to the back surface direction, and the back snap ring is arranged from the back surface of the ball bearing to the front surface direction;
the inner side surface of the front snap ring circular part, which is close to the cylindrical part, is tightly attached to the positive direction end surface of the outer ring of the ball bearing, and the inner side surface of the back snap ring circular part, which is close to the cylindrical part, is tightly attached to the negative direction end surface of the outer ring of the ball bearing; the inner side surface of the front snap ring circular ring part close to the central hole part is positioned outside the front sealing ring and is in clearance fit with the front sealing ring, so that the front sealing ring can be prevented from falling outwards; the inner side surface of the circular part of the back snap ring, which is close to the central hole part, is positioned outside the back sealing ring and is in clearance fit with the back sealing ring, so that the front sealing ring can be prevented from falling outwards;
the inner surface of the front snap ring cylindrical part is in interference fit with the positive direction end part of the ball bearing outer ring, and the inner surface of the back snap ring cylindrical part is in interference fit with the negative direction end part of the ball bearing outer ring;
the circular ring part and the cylindrical part form a right angle with each other.
The front snap ring and the back snap ring are symmetrically arranged on the front surface and the back surface of the ball bearing.
The interference magnitude of the interference fit between the inner surface of the front snap ring cylindrical part and the positive direction end part of the ball bearing outer ring is 0.1-0.5mm, and the interference magnitude of the interference fit between the inner surface of the back snap ring cylindrical part and the negative direction end part of the ball bearing outer ring is 0.1-0.5 mm.
The contact positions of the inner sides of the two ends of the outer ring and the outer sealing lips of the sealing ring are respectively provided with 1 annular groove, and the outer sealing lips close to the outer sides are press-fitted in the annular grooves.
Compared with the prior art, the beneficial effects of the utility model are that: on the basis of the prior art, the structure of the bearing outer ring is changed, a snap ring matched with the outer diameter of the ring is added, one end of the snap ring covers the surface of the sealing ring, and the other end of the snap ring firmly clamps the outer diameter of the bearing. Through its closely cooperate with the external diameter, improved among the prior art bearing seal circle easy phenomenon of deviating from because of being heated, changeed the stable position of guarantee sealing washer, reached the effect that the protection sealing washer is not deviate from.
Drawings
FIG. 1 is a schematic diagram of: the utility model discloses a front view cross section;
FIG. 2 is a diagram of: enlarged view of part A of FIG. 1;
FIG. 3 is a diagram of: front snap ring front view;
FIG. 4 is a diagram of: a left side sectional view of the front snap ring.
Description of reference numerals: the ball bearing comprises a ball bearing 1, an outer ring 101, an inner ring 102, a steel ball group 103, a front sealing ring 2A, a back sealing ring 2B, a sealing outer lip 201, a sealing inner lip 202, a framework 203, an annular groove 204, a front snap ring 3A, a back snap ring 3B, a circular ring part 301, a cylindrical part 302 and a central hole 303.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the present invention.
As shown in fig. 1 to 4, a ball bearing 1 for preventing a seal ring from falling off includes a ball bearing 1, the ball bearing 1 includes an outer ring 101, an inner ring 102, a steel ball group 103, a front seal ring 2A and a back seal ring 2B, the steel ball group 103 is disposed between the outer ring 101 and the inner ring 102, the front seal ring 2A is disposed on one side of the front between the outer ring 101 and the inner ring 102, the back seal ring 2B is disposed on one side of the back between the outer ring 101 and the inner ring 102, the front seal ring 2A and the back seal ring 2B are symmetrically disposed on the front and back sides of the ball bearing 1, and the front seal ring 2A and the back seal ring 2B each include an outer seal lip 201 close to the outer side, an inner seal lip 202 close to the inner side, and;
the clamp also comprises a front snap ring 3A and a back snap ring 3B, wherein the front snap ring 3A and the back snap ring 3B have the same structure and respectively comprise a circular ring part 301, a cylindrical part 302 and a central hole 303; the front clamping ring 3A and the back clamping ring 3B are respectively arranged on the front surface and the back surface of the ball bearing 1, the front clamping ring 3A is arranged from the front surface of the ball bearing 1 to the back surface direction, and the back clamping ring 3B is arranged from the back surface of the ball bearing 1 to the front surface direction;
the inner side surface of the part, close to the cylindrical part 302, of the annular part 301 of the front snap ring 3A is tightly attached to the positive direction end surface of the outer ring 101 of the ball bearing 1, and the inner side surface of the part, close to the cylindrical part 302, of the annular part 301 of the back snap ring 3B is tightly attached to the negative direction end surface of the outer ring 101 of the ball bearing; the inner side surface of the circular part 301 of the front snap ring 3A, which is close to the central hole 303, is positioned outside the front sealing ring 2A and is in clearance fit with the front sealing ring 2A, so that the front sealing ring 2A can be prevented from falling outwards; the inner side surface of the circular part 301 of the back snap ring 3B close to the central hole 303 is positioned outside the back sealing ring 2B and is in clearance fit with the back sealing ring 2B, so that the front sealing ring 2A can be prevented from falling outwards;
the inner surface of the cylindrical part 302 of the front snap ring 3A is in interference fit with the positive direction end part of the outer ring 101 of the ball bearing 1, and the inner surface of the cylindrical part 302 of the back snap ring 3B is in interference fit with the negative direction end part of the outer ring 101 of the ball bearing 1;
the annular portion 301 and the cylindrical portion 302 are at right angles to each other.
The front snap ring 3A and the back snap ring 3B are symmetrically arranged on the front surface and the back surface of the ball bearing 1.
The interference of the inner surface of the cylindrical part 302 of the front snap ring 3A in interference fit with the positive direction end part of the outer ring 101 of the ball bearing 1 is 0.16mm, and the interference of the inner surface of the cylindrical part 302 of the back snap ring 3B in interference fit with the negative direction end part of the outer ring 101 of the ball bearing 1 is 0.16 mm.
The contact positions of the inner sides of the two ends of the outer ring 101 and the outer sealing lips 201 of the sealing ring are respectively provided with 1 annular groove 204, and the outer sealing lips 201 close to the outer sides are press-fitted in the annular grooves 204.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the ordinary changes and replacements within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides a prevent ball bearing that sealing washer drops, includes ball bearing, ball bearing includes outer lane, inner circle, steel ball group, front sealing washer and reverse side sealing washer, steel ball group sets up between outer lane and inner circle, front sealing washer sets up front one side between outer lane and inner circle, reverse side sealing washer sets up reverse side one side between outer lane and inner circle, and front sealing washer and reverse side sealing washer are at ball bearing just, the opposite side symmetry sets up, front sealing washer and reverse side sealing washer respectively including lean on the sealed outer lip in the outside, lean on inboard sealed inner lip and skeleton, its characterized in that:
the front snap ring and the back snap ring have the same structure and respectively comprise a circular ring part, a cylindrical part and a central hole; the front snap ring and the back snap ring are respectively arranged on the front surface and the back surface of the ball bearing, the front snap ring is arranged from the front surface of the ball bearing to the back surface direction, and the back snap ring is arranged from the back surface of the ball bearing to the front surface direction;
the inner side surface of the front snap ring circular part, which is close to the cylindrical part, is tightly attached to the positive direction end surface of the outer ring of the ball bearing, and the inner side surface of the back snap ring circular part, which is close to the cylindrical part, is tightly attached to the negative direction end surface of the outer ring of the ball bearing; the inner side surface of the front snap ring circular ring part close to the central hole part is positioned outside the front sealing ring and is in clearance fit with the front sealing ring; the inner side surface of the circular part of the reverse snap ring, which is close to the central hole part, is positioned outside the reverse sealing ring and is in clearance fit with the reverse sealing ring;
the inner surface of the front snap ring cylindrical part is in interference fit with the positive direction end part of the ball bearing outer ring, and the inner surface of the back snap ring cylindrical part is in interference fit with the negative direction end part of the ball bearing outer ring.
2. The ball bearing for preventing the seal ring from falling off according to claim 1, wherein: the circular ring part and the cylindrical part form a right angle with each other.
3. The ball bearing for preventing the seal ring from falling off according to claim 1, wherein: the front snap ring and the back snap ring are symmetrically arranged on the front surface and the back surface of the ball bearing.
4. The ball bearing for preventing the seal ring from falling off according to claim 1, wherein: the interference magnitude of the interference fit between the inner surface of the front snap ring cylindrical part and the positive direction end part of the ball bearing outer ring is 0.1-0.5mm, and the interference magnitude of the interference fit between the inner surface of the back snap ring cylindrical part and the negative direction end part of the ball bearing outer ring is 0.1-0.5 mm.
5. The ball bearing for preventing the seal ring from falling off according to claim 1, wherein: the contact positions of the inner sides of the two ends of the outer ring and the outer sealing lips of the sealing ring are respectively provided with 1 annular groove, and the outer sealing lips close to the outer sides are press-fitted in the annular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921174175.9U CN210290480U (en) | 2019-07-24 | 2019-07-24 | Ball bearing capable of preventing sealing ring from falling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921174175.9U CN210290480U (en) | 2019-07-24 | 2019-07-24 | Ball bearing capable of preventing sealing ring from falling off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290480U true CN210290480U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921174175.9U Active CN210290480U (en) | 2019-07-24 | 2019-07-24 | Ball bearing capable of preventing sealing ring from falling off |
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| Country | Link |
|---|---|
| CN (1) | CN210290480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033805A (en) * | 2021-09-27 | 2022-02-11 | 中浙高铁轴承有限公司 | Waterproof rust-resistant sealed self-aligning roller bearing |
-
2019
- 2019-07-24 CN CN201921174175.9U patent/CN210290480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033805A (en) * | 2021-09-27 | 2022-02-11 | 中浙高铁轴承有限公司 | Waterproof rust-resistant sealed self-aligning roller bearing |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Ball bearing for preventing sealing ring from falling off Effective date of registration: 20211020 Granted publication date: 20200410 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Ningbo Yuyao sub branch Pledgor: Ningbo Youjia Bearing Co.,Ltd. Registration number: Y2021330001946 |