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）
7084ATNDF尼龙保持器 420 620 90 995 2380 180.6 DF pairing (P0, P6, P5 levels)
7084BTNDF尼龙保持器 420 620 90 890 2150 181.2 DF pairing (P0, P6, P5 levels)
7284ATNDF尼龙保持器 420 760 109 1260 3250 456 DF pairing (P0, P6, P5 levels)
7284BTNDF尼龙保持器 420 760 109 1130 2920 440 DF pairing (P0, P6, P5 levels)
7888ATNDF尼龙保持器 440 540 46 505 1130 44 DF pairing (P0, P6, P5 levels)
7988ATNDF尼龙保持器 440 600 74 720 1720 118.6 DF pairing (P0, P6, P5 levels)
7088ATNDF尼龙保持器 440 650 94 1050 2630 206 DF pairing (P0, P6, P5 levels)
7892ATNDF尼龙保持器 460 580 56 620 1450 67 DF pairing (P0, P6, P5 levels)
7992ATNDF尼龙保持器 460 620 74 730 1770 123.2 DF pairing (P0, P6, P5 levels)
7092ATNDF尼龙保持器 460 680 100 117 300 238 DF pairing (P0, P6, P5 levels)
7896ATNDF尼龙保持器 480 600 56 635 1520 69.8 DF pairing (P0, P6, P5 levels)
7996ATNDF尼龙保持器 480 650 78 860 2180 143.6 DF pairing (P0, P6, P5 levels)
7096ATNDF尼龙保持器 480 700 100 1170 3050 246 DF pairing (P0, P6, P5 levels)
78/500ATNDF尼龙保持器 500 620 56 640 1560 73 DF pairing (P0, P6, P5 levels)
79/500ATNDF尼龙保持器 500 670 78 875 2250 149.8 DF pairing (P0, P6, P5 levels)
70/500ATNDF尼龙保持器 500 720 100 1190 3200 258 DF pairing (P0, P6, P5 levels)
79/530ACTNDF尼龙保持器 530 710 82 1000 2600 172 DF pairing (P0, P6, P5 levels)
79/560ATNDF尼龙保持器 560 750 85 1010 2760 210 DF pairing (P0, P6, P5 levels)
78/630ATNDF尼龙保持器 630 780 69 815 2270 144.4 DF pairing (P0, P6, P5 levels)
78/670ATNDF尼龙保持器 670 820 69 770 2150 152.6 DF pairing (P0, P6, P5 levels)