CN205226080U

CN205226080U - Double -sided tape sealing washer deep groove ball bearing

Info

Publication number: CN205226080U
Application number: CN201520868552.4U
Authority: CN
Inventors: 王敬美
Original assignee: Yongning Taizhou Plain Bearing Mnanufacture Co Ltd
Current assignee: Yongning Taizhou Plain Bearing Mnanufacture Co Ltd
Priority date: 2015-11-03
Filing date: 2015-11-03
Publication date: 2016-05-11
Anticipated expiration: 2025-11-03

Abstract

The utility model relates to a bearing technology field specifically is a double -sided tape sealing washer deep groove ball bearing, including outer lane, inner circle, holder and a plurality of balls, outer lane and inner circle all are equipped with first channel and second channel with the ball adaptation, overlap between outer lane and the inner circle to be equipped with the sealing washer, the curvature radius of first channel is the same with the curvature radius of second channel, and is 0.520DW -0.525DW, the sealing washer in the joint have metal framework, the utility model discloses simple structure, the practicality is strong.

Description

A kind of double-sided belt seal ring deep groove ball bearing

Technical field

The utility model relates to technical field of bearings, is specially a kind of double-sided belt seal ring deep groove ball bearing.

Background technique

The radius of curvature of traditional bearing bear inner ring grooved railway is different often from the radius of curvature of outer ring raceway, so, make the radial clearance in bearing relatively high, cause bearing inner race relative outer ring that radial deflection occurs, wearing and tearing between ball and inner ring or outer ring are larger, easy damage, and then the working life of reducing bearing.

Bearing inner race and outer ring are in relative rotation in process, and retainer also rotates thereupon, and it is heavier that traditional retainer often designs, and resistance is comparatively large, causes efficiency during bearing working lower.

Model utility content

For the deficiency that prior art exists, the purpose of this utility model is the bearing providing a kind of long service life, working efficiency high.

For achieving the above object, the utility model provides following technological scheme: a kind of double-sided belt seal ring deep groove ball bearing, comprise outer ring, inner ring, retainer and some balls, outer ring and inner ring are equipped with and the first raceway groove of ball adaptation and the second raceway groove, seal ring is arranged with between outer ring and inner ring, the radius of curvature of described first raceway groove is identical with the radius of curvature of the second raceway groove, and be 0.520DW-0.525DW, metal frame is connected with in described seal ring, described retainer comprises the first bracing ring and second bracing ring of mirror image setting each other, first bracing ring is provided with circular array and shows several the first encirclement plates, on second bracing ring, annular array has several the second encirclement plates, first encirclement plate and corresponding with it second surrounds plate and forms the cavity volume that can be held ball, first surrounds plate comprises first surface and the second curved surface, first surface and the second curved surface cross section are axially respectively the first camber line and the second camber line, the arc length of the first camber line and the arc length ratio of the second camber line are 4:1, second surrounds plate comprises the 3rd curved surface and the 4th curved surface, 3rd curved surface and the 4th curved surface cross section are axially respectively the 3rd camber line and the 4th camber line, the arc length of the 3rd camber line and the arc length ratio of the 4th camber line are 4:1.

Further, described seal ring is made up of nitrile butadiene rubber.

Further, described metal frame is made up of materials such as steel, iron, nickel.

Further, described retainer is made up of carbon steel.

Contrast the deficiencies in the prior art, the beneficial effect that the technological scheme that the utility model provides is brought: the 1. now radius of curvature of the first raceway groove is set to identical with the radius of curvature of the second raceway groove, so the value of D1-D2 is less with regard to relative tratitional technology, therefore, radial clearance is also just relatively little, the phenomenon effectively preventing bearing from causing because radial clearance is excessive in the course of the work moving radially occurs, and then the phenomenon preventing ball and inner ring or outer ring from occurring to wear and tear and cause shorten the working life of bearing occurs, 2. retainer comprises the first bracing ring and second bracing ring of mirror image setting each other, first bracing ring is provided with circular array and shows several the first encirclement plates, on second bracing ring, annular array has several the second encirclement plates, first encirclement plate and corresponding with it second surrounds plate and forms the cavity volume that can be held ball, effective detent ball, first surrounds plate comprises first surface and the second curved surface, first surface and the second curved surface cross section are axially respectively the first camber line and the second camber line, the arc length of the first camber line and the arc length ratio of the second camber line are 4:1, second surrounds plate comprises the 3rd curved surface and the 4th curved surface, 3rd curved surface and the 4th curved surface cross section are axially respectively the 3rd camber line and the 4th camber line, the arc length of the 3rd camber line and the arc length ratio of the 4th camber line are 4:1, by above design, do not change first surface and the 3rd curved surface respectively with the area of contact of spin, ensure that the effect of support, but reduce the size of the second curved surface and the 4th curved surface, and then saved the material that first surrounds plate and the second encirclement plate, decrease cost, make retainer slimmer and more graceful simultaneously, dexterous, scribble butter at ball and between first surface and the 3rd curved surface respectively simultaneously, make to produce oil film between them, reducing friction resistance, efficiency during raising bearing working and performance.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the G portion enlarged diagram of Fig. 1.

Embodiment

With reference to Fig. 1-Fig. 2, the utility model is described further.

A kind of double-sided belt seal ring deep groove ball bearing, comprise outer ring 1, inner ring 2, retainer and some balls 4, outer ring 1 and inner ring 2 are equipped with the first raceway groove 11 and the second raceway groove 21 with ball 4 adaptation, seal ring 5 is arranged with between outer ring 1 and inner ring 2, the radius of curvature of described first raceway groove 11 is identical with the radius of curvature of the second raceway groove 21, and be 0.520DW-0.525DW, wherein DW is the nominal diameter of ball 4, according to formula: (middle D1 is the ditch footpath of the first raceway groove 11 to D1-D2=2D3+ radial clearance, D2 is the ditch footpath of the second raceway groove 21, D3 is ball 4 diameter), the radius of curvature of ratio second raceway groove 21 that the radius of curvature of the first raceway groove 11 in tratitional technology often designs is large, second raceway groove 21 radius of curvature little, curvature is just larger, degree of crook is just larger, so D2 is just relatively little, so the value of D1-D2 is just larger, now the radius of curvature of the first raceway groove 11 is set to identical with the radius of curvature of the second raceway groove 21, so the value of D1-D2 is less with regard to relative tratitional technology, therefore, radial clearance is also just relatively little, the phenomenon effectively preventing bearing from causing because radial clearance is excessive in the course of the work moving radially occurs, and then the phenomenon preventing ball 4 and inner ring 2 or outer ring 1 from occurring to wear and tear and causing shorten the working life of bearing occurs,

Metal frame 6 is connected with in described seal ring 5, metal frame 6 is connected with in described seal ring 5, described seal ring 5 is made up of nitrile butadiene rubber, described metal frame 6 is made up of materials such as steel, iron, nickel, the hardness of steel, iron and nickel is larger, effectively can play the effect of support, seal ring 5 is prevented to be out of shape when being subject to external force, seal ring 5 is then made up of nitrile butadiene rubber, because it has good bending properties, can well be connected between outer ring 1 and inner ring 2, convenient installation, increases work efficiency;

Described retainer comprises the first bracing ring 31 and the second bracing ring 32 that mirror image is each other arranged, first bracing ring 31 is provided with circular array and shows several the first encirclement plates 311, on second bracing ring 32, annular array has several the second encirclement plates 321, first encirclement plate 311 and corresponding with it second surrounds plate 321 and forms the cavity volume that can be held ball 4, effective detent ball 4, first surrounds plate 311 comprises first surface and the second curved surface, first surface and the second curved surface are respectively the first camber line 3111 and the second camber line 3112 in bearing shaft cross section upwards, the arc length of the first camber line 3111 and the arc length ratio of the second camber line 3112 are 4:1, second surrounds plate 321 comprises the 3rd curved surface and the 4th curved surface, 3rd curved surface and the 4th curved surface are respectively the 3rd camber line 3211 and the 4th camber line 3212 in bearing shaft cross section upwards, the arc length of the 3rd camber line 3211 and the arc length ratio of the 4th camber line 3212 are 4:1, by above design, do not change first surface and the 3rd curved surface respectively with the area of contact of spin, ensure that the effect of support, but reduce the size of the second curved surface and the 4th curved surface, and then saved the material that first surrounds plate 311 and the second encirclement plate 321, decrease cost, make retainer slimmer and more graceful simultaneously, dexterous, scribble butter at ball 4 and between first surface and the 3rd curved surface respectively simultaneously, make to produce oil film between them, reducing friction resistance, efficiency during raising bearing working and performance.

Described retainer is made up of carbon steel, because the performance of carbon steel depends primarily on carbon content, carbon content increases, and intensity, the hardness of steel raise, and plasticity, toughness and weldability reduce, select suitable carbon content, make the combination property of its intensity, hardness, plasticity, toughness best, therefore it can be used as the material of retainer, coordinate the structure of retainer, make it can also ensure good mechanical strength and toughness on sufficiently solid basis, and not easily wear and tear with ball 4.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, those skilled in the art carries out common change and replaces should being included in protection domain of the present utility model within the scope of technical solutions of the utility model.

Claims

1. a double-sided belt seal ring deep groove ball bearing, comprise outer ring, inner ring, retainer and some balls, outer ring and inner ring are equipped with and the first raceway groove of ball adaptation and the second raceway groove, seal ring is arranged with between outer ring and inner ring, it is characterized in that: the radius of curvature of described first raceway groove is identical with the radius of curvature of the second raceway groove, and be 0.520DW-0.525DW, metal frame is connected with in described seal ring, described retainer comprises the first bracing ring and second bracing ring of mirror image setting each other, first bracing ring is provided with circular array and shows several the first encirclement plates, on second bracing ring, annular array has several the second encirclement plates, first encirclement plate and corresponding with it second surrounds plate and forms the cavity volume that can be held ball, first surrounds plate comprises first surface and the second curved surface, first surface and the second curved surface cross section are axially respectively the first camber line and the second camber line, the arc length of the first camber line and the arc length ratio of the second camber line are 4:1, second surrounds plate comprises the 3rd curved surface and the 4th curved surface, 3rd curved surface and the 4th curved surface cross section are axially respectively the 3rd camber line and the 4th camber line, the arc length of the 3rd camber line and the arc length ratio of the 4th camber line are 4:1.

2. a kind of double-sided belt seal ring deep groove ball bearing according to claim 1, is characterized in that: described seal ring is made up of nitrile butadiene rubber.

3. a kind of double-sided belt seal ring deep groove ball bearing according to claim 1, is characterized in that: described metal frame is made up of materials such as steel, iron, nickel.

4. a kind of double-sided belt seal ring deep groove ball bearing according to claim 1, is characterized in that: described retainer is made up of carbon steel.