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）
7264AMDF车削铜保持器 320 580 92 1030 2230 220 DF pairing (P0, P6, P5 levels)
7264BMDF车削铜保持器 320 580 92 960 2140 218 DF pairing (P0, P6, P5 levels)
7868AMDF车削铜保持器 340 420 38 310 655 22.2 DF pairing (P0, P6, P5 levels)
7868BMDF车削铜保持器 340 420 38 275 585 22.4 DF pairing (P0, P6, P5 levels)
7968AMDF车削铜保持器 340 460 56 535 1130 54.4 DF pairing (P0, P6, P5 levels)
7968BMDF车削铜保持器 340 460 56 475 1020 54.4 DF pairing (P0, P6, P5 levels)
BA340-1ADF车削铜保持器 340 479.5 65 645 1360 73.4 DF pairing (P0, P6, P5 levels)
7068AMDF车削铜保持器 340 520 82 845 1810 121 DF pairing (P0, P6, P5 levels)
7068BMDF车削铜保持器 340 520 82 755 1640 123.6 DF pairing (P0, P6, P5 levels)
7872AMDF车削铜保持器 360 440 38 355 765 23.4 DF pairing (P0, P6, P5 levels)
7872BMDF车削铜保持器 360 440 38 315 680 23.4 DF pairing (P0, P6, P5 levels)
7972AMDF车削铜保持器 360 480 56 540 1180 55.8 DF pairing (P0, P6, P5 levels)
7972BMDF车削铜保持器 360 480 56 480 1060 55.8 DF pairing (P0, P6, P5 levels)
7072AMDF车削铜保持器 360 540 82 865 1920 124.8 DF pairing (P0, P6, P5 levels)
7072BMDF车削铜保持器 360 540 82 775 1730 127.2 DF pairing (P0, P6, P5 levels)
7272AMDF车削铜保持器 360 650 95 1090 2550 288 DF pairing (P0, P6, P5 levels)
7272BMDF车削铜保持器 360 650 95 975 2310 280 DF pairing (P0, P6, P5 levels)
7876AMDF车削铜保持器 380 480 46 455 955 39 DF pairing (P0, P6, P5 levels)
7976AMDF车削铜保持器 380 520 65 635 1450 79.6 DF pairing (P0, P6, P5 levels)
7976BMDF车削铜保持器 380 520 65 565 1300 81.4 DF pairing (P0, P6, P5 levels)