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）
7207BMDT车削铜保持器 35 72 17 44 36.5 0.588 DT pairing (P0, P6, P5 levels)
7307CMDT车削铜保持器 35 80 21 61.6 47.2 0.95 DT pairing (P0, P6, P5 levels)
7307AMDT车削铜保持器 35 80 21 65 52.5 0.928 DT pairing (P0, P6, P5 levels)
7307BMDT车削铜保持器 35 80 21 59.5 48.5 0.948 DT pairing (P0, P6, P5 levels)
7407AMDT车削铜保持器 35 100 25 98.2 73.9 1.9 DT pairing (P0, P6, P5 levels)
7407BMDT车削铜保持器 35 100 25 91.3 68.6 1.9 DT pairing (P0, P6, P5 levels)
7008AMDT车削铜保持器 40 68 15 31.5 31 0.38 DT pairing (P0, P6, P5 levels)
7008BMDT车削铜保持器 40 68 15 27.4 26.4 0.42 DT pairing (P0, P6, P5 levels)
7208AMDT车削铜保持器 40 80 18 57.5 50.5 0.75 DT pairing (P0, P6, P5 levels)
7208BMDT车削铜保持器 40 80 18 52 46 0.766 DT pairing (P0, P6, P5 levels)
7308CMDT车削铜保持器 40 90 23 75.3 58.8 1.314 DT pairing (P0, P6, P5 levels)
7308AMDT车削铜保持器 40 90 23 79.5 66 1.266 DT pairing (P0, P6, P5 levels)
7308BMDT车削铜保持器 40 90 23 73 60.5 1.296 DT pairing (P0, P6, P5 levels)
7408AMDT车削铜保持器 40 110 27 114 87.1 2.46 DT pairing (P0, P6, P5 levels)
7408BMDT车削铜保持器 40 110 27 105 80.8 2.46 DT pairing (P0, P6, P5 levels)
7009AMDT车削铜保持器 45 75 16 37.5 37.5 0.5 DT pairing (P0, P6, P5 levels)
7009BMDT车削铜保持器 45 75 16 32.5 32 0.52 DT pairing (P0, P6, P5 levels)
7209AMDT车削铜保持器 45 85 19 64.5 57.5 0.822 DT pairing (P0, P6, P5 levels)
7209BMDT车削铜保持器 45 85 19 58.5 52.5 0.842 DT pairing (P0, P6, P5 levels)
7309CMDT车削铜保持器 45 100 25 96.1 79.5 1.75 DT pairing (P0, P6, P5 levels)