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）
7030AMDF车削铜保持器 150 225 35 222 305 9.5 DF pairing (P0, P6, P5 levels)
7030BMDF车削铜保持器 150 225 35 199 277 8.86 DF pairing (P0, P6, P5 levels)
7230AMDF车削铜保持器 150 270 45 405 560 22.4 DF pairing (P0, P6, P5 levels)
7230BMDF车削铜保持器 150 270 45 365 510 22.4 DF pairing (P0, P6, P5 levels)
7330CMDF车削铜保持器 150 320 65 607 891 44.8 DF pairing (P0, P6, P5 levels)
7330AMDF车削铜保持器 150 320 65 515 745 52 DF pairing (P0, P6, P5 levels)
7330BMDF车削铜保持器 150 320 65 470 680 51.8 DF pairing (P0, P6, P5 levels)
7832AMDF车削铜保持器 160 200 20 89 159 2.78 DF pairing (P0, P6, P5 levels)
7832BMDF车削铜保持器 160 200 20 79 142 2.76 DF pairing (P0, P6, P5 levels)
7932CMDF车削铜保持器 160 220 28 173 265 6.2 DF pairing (P0, P6, P5 levels)
7932AMDF车削铜保持器 160 220 28 156 241 6.22 DF pairing (P0, P6, P5 levels)
7932BMDF车削铜保持器 160 220 28 139 216 6.22 DF pairing (P0, P6, P5 levels)
BT160-3BDF车削铜保持器 160 229.5 33 180 256 9.04 DF pairing (P0, P6, P5 levels)
BT160-1BDF车削铜保持器 160 229.5 33 180 256 9.04 DF pairing (P0, P6, P5 levels)
BA160-2ADF车削铜保持器 160 230 33 201 293 8.3 DF pairing (P0, P6, P5 levels)
7032AMDF车削铜保持器 160 240 38 252 355 11.54 DF pairing (P0, P6, P5 levels)
7032BMDF车削铜保持器 160 240 38 225 320 10.9 DF pairing (P0, P6, P5 levels)
7232AMDF车削铜保持器 160 290 48 425 615 28.2 DF pairing (P0, P6, P5 levels)
7232BMDF车削铜保持器 160 290 48 385 555 28.4 DF pairing (P0, P6, P5 levels)
7332CMDF车削铜保持器 160 340 68 640 980 52.8 DF pairing (P0, P6, P5 levels)