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）
7915ACTNDF尼龙保持器 75 105 16 44 55.5 0.71 DF pairing (P0, P6, P5 levels)
7015ATNDF尼龙保持器 75 115 20 73 87.5 1.322 DF pairing (P0, P6, P5 levels)
7015BTNDF尼龙保持器 75 115 20 63.5 75.2 1.38 DF pairing (P0, P6, P5 levels)
7215ATNDF尼龙保持器 75 130 25 123 129 2.38 DF pairing (P0, P6, P5 levels)
7215BTNDF尼龙保持器 75 130 25 112 117 2.44 DF pairing (P0, P6, P5 levels)
7315CTNDF尼龙保持器 75 160 37 223 208 6.3 DF pairing (P0, P6, P5 levels)
7315ATNDF尼龙保持器 75 160 37 221 212 6.26 DF pairing (P0, P6, P5 levels)
7315BTNDF尼龙保持器 75 160 37 202 195 6.38 DF pairing (P0, P6, P5 levels)
7415ATNDF尼龙保持器 75 190 45 278 282 11.8 DF pairing (P0, P6, P5 levels)
7415BTNDF尼龙保持器 75 190 45 257 261 11.8 DF pairing (P0, P6, P5 levels)
7816BTNDF尼龙保持器 80 100 10 33.2 38 0.202 DF pairing (P0, P6, P5 levels)
7916ACTNDF尼龙保持器 80 110 16 44.5 58 0.76 DF pairing (P0, P6, P5 levels)
7016ATNDF尼龙保持器 80 125 22 89.5 106 1.76 DF pairing (P0, P6, P5 levels)
7016BTNDF尼龙保持器 80 125 22 77.7 91.3 1.86 DF pairing (P0, P6, P5 levels)
7216ATNDF尼龙保持器 80 140 26 145 152 2.92 DF pairing (P0, P6, P5 levels)
7216BTNDF尼龙保持器 80 140 26 131 139 2.98 DF pairing (P0, P6, P5 levels)
7316CTNDF尼龙保持器 80 170 39 242 233 7.7 DF pairing (P0, P6, P5 levels)
7316ATNDF尼龙保持器 80 170 39 239 238 7.42 DF pairing (P0, P6, P5 levels)
7316BTNDF尼龙保持器 80 170 39 219 218 7.58 DF pairing (P0, P6, P5 levels)
7416ATNDF尼龙保持器 80 200 48 313 332 12 DF pairing (P0, P6, P5 levels)