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）
7016AWDF冲压钢保持器 80 125 22 89.5 106 1.76 DF pairing (P0, P6, P5 levels)
7016BWDF冲压钢保持器 80 125 22 77.7 91.3 1.86 DF pairing (P0, P6, P5 levels)
7216AWDF冲压钢保持器 80 140 26 145 152 2.92 DF pairing (P0, P6, P5 levels)
7216BWDF冲压钢保持器 80 140 26 131 139 2.98 DF pairing (P0, P6, P5 levels)
7316AWDF冲压钢保持器 80 170 39 239 238 7.42 DF pairing (P0, P6, P5 levels)
7316BWDF冲压钢保持器 80 170 39 219 218 7.58 DF pairing (P0, P6, P5 levels)
7416AWDF冲压钢保持器 80 200 48 313 332 12 DF pairing (P0, P6, P5 levels)
7416BWDF冲压钢保持器 80 200 48 290 307 12 DF pairing (P0, P6, P5 levels)
7017AWDF冲压钢保持器 85 130 22 3.4 4.5 1.826 DF pairing (P0, P6, P5 levels)
7017BWDF冲压钢保持器 85 130 22 79.3 96.7 1.94 DF pairing (P0, P6, P5 levels)
7217AWDF冲压钢保持器 85 150 28 3 4.3 3.66 DF pairing (P0, P6, P5 levels)
7217BWDF冲压钢保持器 85 150 28 2.2 3 3.74 DF pairing (P0, P6, P5 levels)
7317AWDF冲压钢保持器 85 180 41 2.2 2.8 8.66 DF pairing (P0, P6, P5 levels)
7317BWDF冲压钢保持器 85 180 41 1.9 2.6 8.84 DF pairing (P0, P6, P5 levels)
7417AWDF冲压钢保持器 85 210 52 331 360 17.08 DF pairing (P0, P6, P5 levels)
7417BWDF冲压钢保持器 85 210 52 307 334 17.08 DF pairing (P0, P6, P5 levels)
7018AWDF冲压钢保持器 90 140 24 3.2 4.3 2.38 DF pairing (P0, P6, P5 levels)
7018BWDF冲压钢保持器 90 140 24 95 114 2.52 DF pairing (P0, P6, P5 levels)
7218AWDF冲压钢保持器 90 160 30 2.8 4 4.5 DF pairing (P0, P6, P5 levels)
7218BWDF冲压钢保持器 90 160 30 2 2.8 4.58 DF pairing (P0, P6, P5 levels)