NTN7221/DB/DF/DT轴承
- 轴承型号：7221/DB/DF/DT
- 系列：角接触球轴承1
- 品牌：NTN
NTN 7221/DB/DF/DT轴承,角接触球轴承1，轴承内圈,外圈更多详细资料您可致电我司，此轴承型号本公司有现货，获取NTN 7221/DB/DF/DT配合安装尺寸,安装尺寸,重量,额定动负荷,载荷,7221/DB/DF/DT极限转速,游隙,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：021-36539288 ,021-36539299
NTN7221/DB/DF/DT轴承参数
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系列角接触球轴承1
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型号7221/DB/DF/DT
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Boundarydimensions mm- d
- D
- B
- ·B
- rsmin2
- r1smin2
- 105
- 190
- 36
- 72
- 2.1
- 1.1
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Basic load ratings
- dynamic
- static
- dynamic
- static
- kN
- kgf
- Cr
- Cor
- Cr
- Cor
- 157
- 142
- 16,000
- 14,400
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Limiting speeds
- rpm
- grease
- oil
- 3,700
- 5,000
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Bearing numbers
- 7221
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Load center
- mm
- a
- 60.5
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Mass
- kg
- single
- .approx.
- 3.79
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Basic load ratings
- dynamic
- static
- dynamic
- static
- (duplex) kN
- (duplex) kgf
- Cr
- Cor
- Cr
- Cor
- 254
- 283
- 25,900
- 28,900
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Limiting speeds
- (duplex)
- rpm
- grease
- oil
- 3,000
- 4,000
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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
- 117
- 112
- 178
- 183
- 2
- 1
- 角接触球轴承1系列 7221/DB/DF/DT图片