CN201396369Y - Bearing - Google Patents

Abstract

The utility model discloses a bearing, comprising an outer ring and an inner ring which are coaxially arranged; wherein the inner ring is coaxially provided in the outer ring, an annular groove is provided between the inner ring and the outer ring, a holder is provided in the groove and is provided with a plurality of rolling balls fitting the groove, and a seal ring is provided between the innerring and the outer ring. The bearing is characterized in that the outer ring is integrally provided with a flange plate. The bearing has the advantages that since the outer ring is integrally providedwith a flange plate, in production, the flange plate and the outer ring of the bearing can be manufactured in one-time installment, to satisfy the geometric tolerance requirement of the flange plateand the outer ring of the bearing, thereby realizing minimum installment error with lathe, to confirm the assembly precision and improve the working accuracy of lathe.

Description

A kind of bearing

Technical field

The utility model relates to bearing commonly used in a kind of mechanical field.

Background technique

Bearing uses very general in mechanical field, be widely used on all kinds of lathes, the equipment, when mounted, the interior ring of bearing is connected with axle or screw mandrel usually, and the outer shroud of bearing much is to fixedly connected with lathe by flange plate, but because the outer shroud of flange plate and bearing is two separate parts, processing separately, can not guarantee the alignment error of flange plate and outer race during assembling, thereby can't guarantee the assembly precision of lathe, finally influence the machining accuracy of lathe.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of assembly precision that can guarantee lathe, improves the bearing of its machining accuracy.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of bearing, the outer shroud and the interior ring that comprise coaxial setting, coaxial being arranged in the described outer shroud of ring in described, be provided with the groove of annular in described between ring and the described outer shroud, be provided with retainer in the described groove, described retainer is provided with the ball that a plurality of and described groove cooperates, be provided with seal ring between described outer shroud and the described interior ring, be wholely set on the described outer shroud and be useful on the flange plate of fixedlying connected with lathe.

Described groove is two and back to setting, described in ring be two and be oppositely arranged.

The wrapping angle of described groove is 15 ° or 25 ° or 40 ° or 60 °.

Compared with prior art, the utility model has the advantages that owing to be wholely set flange plate on the outer shroud, add man-hour, flange plate and outer race once are installed and machine, guaranteed to add flange plate and the Geometrical Tolerance Principle of outer race in man-hour, promptly guaranteed the error minimum when installing, thereby guaranteed the assembly precision of lathe, improved the machining accuracy of lathe greatly with lathe.

Description of drawings

Fig. 1 is a sectional view of the present utility model;

Fig. 2 is the schematic representation of installing and using of the utility model and screw mandrel, lathe.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in the figure, a kind of bearing, comprise the outer shroud 1 of coaxial setting and two and be oppositely arranged in ring 2, in ring 2 coaxial being arranged in the outer shroud 1, be provided with between interior ring 2 and the outer shroud 1 two annulars and back to the groove of setting, the wrapping angle a of groove is 60 °, be provided with retainer 3 in the groove, retainer 3 is provided with a plurality of equally distributed and balls 4 that cooperate with groove, is provided with seal ring 5 between outer shroud 1 and the interior ring 2, has been wholely set flange plate 11 on the outer shroud 1.

In the foregoing description, the wrapping angle a of groove can also be 15 °, 25 ° or 40 °, be consistent with the canonical parameter in the bearing GB, wrapping angle is that 15 °, 25 ° bearing is suitable for all kinds of high-speed main spindles, is suitable for all kinds of screw mandrels and wrapping angle is 40 °, 60 ° a bearing.

Claims (3)

1, a kind of bearing, the outer shroud and the interior ring that comprise coaxial setting, coaxial being arranged in the described outer shroud of ring in described, be provided with the groove of annular in described between ring and the described outer shroud, be provided with retainer in the described groove, described retainer is provided with the ball that a plurality of and described groove cooperates, and is provided with seal ring between described outer shroud and the described interior ring, it is characterized in that being wholely set on the described outer shroud being useful on the flange plate of fixedlying connected with lathe.

2, a kind of bearing as claimed in claim 1 is characterized in that described groove is two and back to setting, described in ring be two and be oppositely arranged.

3, a kind of bearing as claimed in claim 1, the wrapping angle that it is characterized in that described groove are 15 ° or 25 ° or 40 ° or 60 °.

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