7021/DB/DF/DT_NTN 7021/DB/DF/DT进口轴承
NTN 7021/DB/DF/DT轴承,角接触球轴承1，此轴承型号本公司有现货，获取轴承内圈,外圈更多详细资料您可致电我司，NTN 7021/DB/DF/DT配合安装尺寸,基本尺寸,滚子粒数,7021/DB/DF/DT价格,外形尺寸,锥度,轴承的图纸、样品、价格或者替换产品等！我们是NTN轴承最佳代理商，所售产品均为原装正品，请您放心购买！ 订购电话：0512-62658883
7021/DB/DF/DT轴承 结构尺寸参数
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系列角接触球轴承1
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型号7021/DB/DF/DT
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Boundarydimensions mm- d
- D
- B
- ·B
- rsmin2
- r1smin2
- 105
- 160
- 26
- 52
- 2
- 1
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Basic load ratings
- dynamic
- static
- dynamic
- static
- kN
- kgf
- Cr
- Cor
- Cr
- Cor
- 80.0
- 81.5
- 8,150
- 8,350
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Limiting speeds
- rpm
- grease
- oil
- 4,100
- 5,500
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Bearing numbers
- 7021
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Load center
- mm
- a
- 51.5
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Mass
- kg
- single
- .approx.
- 1.86
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Basic load ratings
- dynamic
- static
- dynamic
- static
- (duplex) kN
- (duplex) kgf
- Cr
- Cor
- Cr
- Cor
- 130
- 163
- 13,300
- 16,700
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Limiting speeds
- (duplex)
- rpm
- grease
- oil
- 3,300
- 4,400
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Bearing numbers2
- DB
- DF
- DT
- DB
- DF
- DT
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Abutment and fillet dimensions
mm
- da
- db
- Da
- Db
- ras
- r1as
- min
- min
- max
- max
- max
- max
- 115
- 115
- 150
- 154.5
- 2
- 1
- 角接触球轴承1系列 7021/DB/DF/DT图片
7021/DB/DF/DT轴承 一．轴承：(一)滚动轴承总论1.滚动轴承rollingbearing在支承负荷和彼此相对运动的零件间作滚动运动的轴承，它包括有滚道的零件和带或不带隔离或引导件的滚动体组。可用于承受径向、轴向或径向与轴向的联合负荷。2.单列轴承singlerowbearing具有一列滚动体的滚动轴承。3.双列轴承doublerowbearing具有两列滚动体的滚动轴承。4.&n