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）
7332AMDF车削铜保持器 160 340 68 565 845 61.4 DF pairing (P0, P6, P5 levels)
7332BMDF车削铜保持器 160 340 68 515 770 61.6 DF pairing (P0, P6, P5 levels)
7834AMDF车削铜保持器 170 215 22 109 192 3.7 DF pairing (P0, P6, P5 levels)
7834BMDF车削铜保持器 170 215 22 96.5 171 3.66 DF pairing (P0, P6, P5 levels)
7934CMDF车削铜保持器 170 230 28 183 297 6.72 DF pairing (P0, P6, P5 levels)
7934AMDF车削铜保持器 170 230 28 165 269 6.78 DF pairing (P0, P6, P5 levels)
7934BMDF车削铜保持器 170 230 28 147 241 6.72 DF pairing (P0, P6, P5 levels)
7034AMDF车削铜保持器 170 260 42 300 430 15.8 DF pairing (P0, P6, P5 levels)
7034BMDF车削铜保持器 170 260 42 270 385 15.54 DF pairing (P0, P6, P5 levels)
7234AMDF车削铜保持器 170 310 52 480 715 34.6 DF pairing (P0, P6, P5 levels)
7234BMDF车削铜保持器 170 310 52 435 650 35.2 DF pairing (P0, P6, P5 levels)
7334CMDF车削铜保持器 170 360 72 679 1040 62.4 DF pairing (P0, P6, P5 levels)
7334AMDF车削铜保持器 170 360 72 630 970 71.6 DF pairing (P0, P6, P5 levels)
7334BMDF车削铜保持器 170 360 72 575 890 71.2 DF pairing (P0, P6, P5 levels)
7836AMDF车削铜保持器 180 225 22 111 204 3.86 DF pairing (P0, P6, P5 levels)
7836BMDF车削铜保持器 180 225 22 99 182 3.84 DF pairing (P0, P6, P5 levels)
7936CMDF车削铜保持器 180 250 33 236 370 9.8 DF pairing (P0, P6, P5 levels)
7936AMDF车削铜保持器 180 250 33 213 335 9.94 DF pairing (P0, P6, P5 levels)
7936BMDF车削铜保持器 180 250 33 190 300 9.68 DF pairing (P0, P6, P5 levels)
BA180-3ADF车削铜保持器 180 259.5 33 290 420 11.6 DF pairing (P0, P6, P5 levels)