CN206918056U - Outer ring carries the new four-line column roller bearing of rib - Google Patents

Abstract

Outer ring carries the new four-line column roller bearing of rib, has two double-row outer-rings, two biserial inner rings, sets multiple rollers inside, between outer ring, roller is supported by solid cage.The utility model is used for bearing designation FCD6490240, is a kind of nonstandard new design of this bearing designation.It is big to solve existing bearing impact load, the problems such as rotating speed is high, bearing life is short, roll change elapsed time is long, using company's original creation《Limit design method for rolling bearing》, there is provided the appearance and size and structural element value Dw, L, Z of a kind of novel bearing.The design is realized under the conditions of design strength and technique processing request is met, the roller diameter of design is maximum, and length is most long, Bearing dynamic rated load value highest, and bearing mathematic(al) expectation is most long.Meet requirement of the client to bearing long-life and reduction use cost.Belong to extra large size bearing.Make support roller and working roll special bearing on steel and nonferrous metallurgy industry rolling mill.

Description

Outer ring carries the new four-line column roller bearing of rib

Technical field

A kind of four-line column roller bearing, belong to extra large size bearing.It is mainly used on steel and nonferrous metallurgy industry rolling mill Make support roller and working roll special bearing.Belong to engineering element bearing class (F16C), the rolling class (B21B) of metal.

Background technology

The four-line column roller bearing of existing iron and steel metallurgy, coloured industry rolling mill or working roll dress, because of bearing Working condition is severe, and rotating speed is high, and the shock loading born is big, thus the service life of bearing is shorter, roll change consumption accumulation auxiliary Time is grown, and user is reduction use cost, it is desirable to which bearing possesses the long-life.

The content of the invention

The utility model proposes outer ring carry the new four-line column roller bearing of rib, its purpose is exactly to provide the user The four-line column roller bearing of long-life.Provide a kind of appearance and size and structural element of the four-line column roller bearing of sequence number Numerical value.

The utility model is used for bearing designation FCD6490240, (wherein:FCD structures are that outer ring carries rib, had in 2 The four-line column roller bearing of circle, 64X5 are bearing bore diameter size, and 90X5 is bearing outside diameter size, and 240 be the broad-ruler of bearing It is very little).Technical scheme provided by the utility model is a kind of nonstandard new design in this bearing designation.

The technical scheme of use is as follows：

Outer ring carries the new four-line column roller bearing of rib, has two double-row outer-rings 1, two biserial inner rings 2, double Multiple rollers 4 are set between row outer ring and biserial inner ring, roller is supported by solid cage 3；It is characterized in that:The new four row cylinder Roller bearing is provided with a sequence number 1, bearing bore diameter d, bearing outside diameter D, bearing width T (B), the bearing roller of the bearing of sequence number 1 Diameter Dw, roller length L, each column roller quantity Z spans are respectively number range in table 1；Table 1

To obtain the optimum efficiency of four-line column roller bearing, in the bearing in table 1 per new four-line column roller bearing Footpath d, bearing outside diameter D, bearing width T (B), roller diameter Dw, roller length L, each column roller quantity Z numerical value take in table 2 respectively The numerical value of sequence number 1.As leave out tolerance in table 1 there was only nominal dimension and optimize the numerical value of each column roller quantity.Table 2

The utility model beneficial effect：This outer ring carries the new four-line column roller bearing of rib, using company's original creation " limit design method for rolling bearing " designs, it is determined that the structural element of this bearing designation FCD6490240 technical scheme Numerical value, the technical program are realized under the conditions of design strength and technique processing request is met, the roller diameter of design is maximum, long Degree is most long, and the dynamic load rating value highest of bearing, the mathematic(al) expectation of bearing is most long, meets the long life requirement of client, reduces The use cost of client.

Brief description of the drawings

Fig. 1 outer rings carry the new four-line column roller bearing positive view of rib.

The shape graph of Fig. 2 rollers 4.

Embodiment

See Fig. 1, outer ring carries the new four-line column roller bearing of rib, has two double-row outer-rings 1, two biserial inner rings 2, multiple rollers 4 are set between double-row outer-ring and biserial inner ring, roller is supported by solid cage 3.

See Fig. 1, table 2, bearing appearance and size:Bearing bore diameter d is 320m, and bearing outside diameter D is 450mm, bearing width T (B) For 240mm；(T is bearing outer ring element width here, and B is bearing inner race element width, i.e. T=B=240mm).Use the axis of rolling The outer ring for holding limit design method determination carries the new four-line column roller bearing structural element value of rib and is：See Fig. 2, roller is straight Footpath Dw is 33.5mm, and roller length L is 42mm, is 33 in circumferential each column roller quantity Z.

Claims (2)

1. outer ring carries the new four-line column roller bearing of rib, there are two double-row outer-rings (1), two biserial inner rings (2), Multiple rollers (4) are set between double-row outer-ring and biserial inner ring, roller is supported by solid cage (3)；It is characterized in that:Described new four Line column roller bearing is provided with a sequence number 1, bearing bore diameter d, bearing outside diameter D, bearing width T (B), the axle of the bearing of sequence number 1 Bearing roller diameter Dw, roller length L, each column roller quantity Z spans are respectively number range in table 1；Table 1

2. the outer ring as described in claim 1 carries the new four-line column roller bearing of rib, it is characterized in that:The bearing of sequence number 1 Bearing bore diameter d, bearing outside diameter D, bearing width T (B), bearing roller diameter Dw, roller length L, each column roller quantity Z values Numerical value respectively in table 2；Table 2