DT pairing (P0, P6, P5 levels)

DT pairing is one of the three classic paired installation methods for angular contact ball bearings, with the full name Double Tandem (series connection) and code DT. The core is to install two angular contact ball bearings of the same specification in the same direction (outer ring wide/narrow edge in the same direction, contact angle centerline in the same line), forming a unidirectional load superposition layout, suitable for radial load+ultra large unidirectional axial load conditions. It is the core choice for heavy-duty shaft systems that need to withstand unidirectional large axial forces, such as rolling mills, cranes, hydraulic equipment, etc. It can be adapted to the full series of angular contact ball bearings such as 7000C/AC/B and AC7000 all 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）
7828ATNDT尼龙保持器 140 175 18 77 130 1.9 DT pairing (P0, P6, P5 levels)
7828BTNDT尼龙保持器 140 175 18 68 116 1.9 DT pairing (P0, P6, P5 levels)
7928ACTNDT尼龙保持器 140 190 24 122 180 3.26 DT pairing (P0, P6, P5 levels)
7928ATNDT尼龙保持器 140 190 24 117 173 3.84 DT pairing (P0, P6, P5 levels)
7928BTNDT尼龙保持器 140 190 24 104 155 3.9 DT pairing (P0, P6, P5 levels)
7028ATNDT尼龙保持器 140 210 33 194 265 7.8 DT pairing (P0, P6, P5 levels)
7028BTNDT尼龙保持器 140 210 33 174 239 7.28 DT pairing (P0, P6, P5 levels)
7228ATNDT尼龙保持器 140 250 42 355 470 17.84 DT pairing (P0, P6, P5 levels)
7228BTNDT尼龙保持器 140 250 42 320 425 17.88 DT pairing (P0, P6, P5 levels)
7328CTNDT尼龙保持器 140 300 62 573 802 37.6 DT pairing (P0, P6, P5 levels)
7328ATNDT尼龙保持器 140 300 62 490 670 42.8 DT pairing (P0, P6, P5 levels)
7328BTNDT尼龙保持器 140 300 62 445 615 43.2 DT pairing (P0, P6, P5 levels)
7830ATNDT尼龙保持器 150 190 20 87 149 2.64 DT pairing (P0, P6, P5 levels)
7830BTNDT尼龙保持器 150 190 20 77 133 2.6 DT pairing (P0, P6, P5 levels)
7930ACTNDT尼龙保持器 150 210 28 157 231 5.94 DT pairing (P0, P6, P5 levels)
7930ATNDT尼龙保持器 150 210 28 150 222 5.98 DT pairing (P0, P6, P5 levels)
7930BTNDT尼龙保持器 150 210 28 134 199 5.9 DT pairing (P0, P6, P5 levels)
7030ATNDT尼龙保持器 150 225 35 222 305 9.5 DT pairing (P0, P6, P5 levels)
7030BTNDT尼龙保持器 150 225 35 199 277 8.86 DT pairing (P0, P6, P5 levels)
7230ATNDT尼龙保持器 150 270 45 405 560 22.4 DT pairing (P0, P6, P5 levels)