7021/DB/DF/DT_NTN 7021/DB/DF/DT進(jìn)口軸承

NTN 7021/DB/DF/DT軸承,角接觸球軸承1，此軸承型號(hào)本公司有現(xiàn)貨，獲取軸承內(nèi)圈,外圈更多詳細(xì)資料您可致電我司，NTN 7021/DB/DF/DT配合安裝尺寸,基本尺寸,滾子粒數(shù),7021/DB/DF/DT價(jià)格,外形尺寸,錐度,軸承的圖紙、樣品、價(jià)格或者替換產(chǎn)品等！我們是NTN軸承最佳代理商，所售產(chǎn)品均為原裝正品，請您放心購買！訂購電話：0512-62658883

7021/DB/DF/DT軸承結(jié)構(gòu)尺寸參數(shù)

系列

角接觸球軸承1
型號(hào)

7021/DB/DF/DT
Boundarydimensions mm
- d
- D
- B
- ·B
- r_smin2
- r_1smin2
- 105
- 160
- 26
- 52
- 2
- 1
Basic load ratings
- dynamic
- static
- dynamic
- static
- kN
- kgf
- Cr
- Cor
- Cr
- Cor
- 80.0
- 81.5
- 8,150
- 8,350
Limiting speeds
- rpm
- grease
- oil
- 4,100
- 5,500
Bearing numbers
- 7021
Load center
- mm
- a
- 51.5
Mass
- kg
- single
- .approx.
- 1.86
Basic load ratings
- dynamic
- static
- dynamic
- static
- (duplex) kN
- (duplex) kgf
- Cr
- Cor
- Cr
- Cor
- 130
- 163
- 13,300
- 16,700
Limiting speeds
- (duplex)
- rpm
- grease
- oil
- 3,300
- 4,400
Bearing numbers2
- DB
- DF
- DT
- DB
- DF
- DT
Abutment and fillet dimensions
- mm
- da
- db
- Da
- Db
- r_as
- r_1as
- min
- min
- max
- max
- max
- max
- 115
- 115
- 150
- 154.5
- 2
- 1
角接觸球軸承1系列 7021/DB/DF/DT圖片

7021/DB/DF/DT軸承一．軸承：(一)滾動(dòng)軸承總論1.滾動(dòng)軸承rollingbearing在支承負(fù)荷和彼此相對運(yùn)動(dòng)的零件間作滾動(dòng)運(yùn)動(dòng)的軸承，它包括有滾道的零件和帶或不帶隔離或引導(dǎo)件的滾動(dòng)體組。可用于承受徑向、軸向或徑向與軸向的聯(lián)合負(fù)荷。2.單列軸承singlerowbearing具有一列滾動(dòng)體的滾動(dòng)軸承。3.雙列軸承doublerowbearing具有兩列滾動(dòng)體的滾動(dòng)軸承。4.&n