DF pairing (P0, P6, P5 levels)

DF pairing is one of the three classic paired installation methods for angular contact ball bearings, with the full name Double Face to Face and code DF. The core is to install two angular contact ball bearings of the same specification with the narrow outer edge facing each other and the wide inner edge facing each other, with the contact angle centerline converging towards the inside of the bearing to form an "inner eight" layout. It is suitable for radial loads and bidirectional axial loads, with small shaft span and high concentricity requirements. It is a commonly used choice for compact shaft systems such as pump valves, motor end caps, and small spindles, and can be adapted to a full range of angular contact ball bearings such as 7000C/AC/B and AC7000 full ceramic types.

Model Basic Dimensions Basic rated dynamic load WeightType
Inner diameter Outer diameter Thickness Dynamic load Static load
[mm] [mm] [mm] (kN) (kN) （kg）
7014AMDF车削铜保持器 70 110 20 71.5 82.5 1.25 DF pairing (P0, P6, P5 levels)
7014BMDF车削铜保持器 70 110 20 62.1 71.1 1.32 DF pairing (P0, P6, P5 levels)
7214AMDF车削铜保持器 70 125 24 124 127 2.22 DF pairing (P0, P6, P5 levels)
7214BMDF车削铜保持器 70 125 24 112 116 2.28 DF pairing (P0, P6, P5 levels)
7314CMDF车削铜保持器 70 150 35 205 184 5.4 DF pairing (P0, P6, P5 levels)
7314AMDF车削铜保持器 70 150 35 203 187 5.2 DF pairing (P0, P6, P5 levels)
7314BMDF车削铜保持器 70 150 35 186 172 5.3 DF pairing (P0, P6, P5 levels)
7414AMDF车削铜保持器 70 180 42 242 230 9.98 DF pairing (P0, P6, P5 levels)
7414BMDF车削铜保持器 70 180 42 241 237 9.98 DF pairing (P0, P6, P5 levels)
7015AMDF车削铜保持器 75 115 20 73 87.5 1.322 DF pairing (P0, P6, P5 levels)
7015BMDF车削铜保持器 75 115 20 63.5 75.2 1.38 DF pairing (P0, P6, P5 levels)
7215AMDF车削铜保持器 75 130 25 123 129 2.38 DF pairing (P0, P6, P5 levels)
7215BMDF车削铜保持器 75 130 25 112 117 2.44 DF pairing (P0, P6, P5 levels)
7315CMDF车削铜保持器 75 160 37 223 208 6.3 DF pairing (P0, P6, P5 levels)
7315AMDF车削铜保持器 75 160 37 221 212 6.26 DF pairing (P0, P6, P5 levels)
7315BMDF车削铜保持器 75 160 37 202 195 6.38 DF pairing (P0, P6, P5 levels)
7415AMDF车削铜保持器 75 190 45 278 282 11.8 DF pairing (P0, P6, P5 levels)
7415BMDF车削铜保持器 75 190 45 257 261 11.8 DF pairing (P0, P6, P5 levels)
7016AMDF车削铜保持器 80 125 22 89.5 106 1.76 DF pairing (P0, P6, P5 levels)
7016BMDF车削铜保持器 80 125 22 77.7 91.3 1.86 DF pairing (P0, P6, P5 levels)