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）
7308AWDT冲压钢保持器 40 90 23 79.5 66 1.266 DT pairing (P0, P6, P5 levels)
7308BWDT冲压钢保持器 40 90 23 73 60.5 1.296 DT pairing (P0, P6, P5 levels)
7408AWDT冲压钢保持器 40 110 27 114 87.1 2.46 DT pairing (P0, P6, P5 levels)
7408BWDT冲压钢保持器 40 110 27 105 80.8 2.46 DT pairing (P0, P6, P5 levels)
7009AWDT冲压钢保持器 45 75 16 37.5 37.5 0.5 DT pairing (P0, P6, P5 levels)
7009BWDT冲压钢保持器 45 75 16 32.5 32 0.52 DT pairing (P0, P6, P5 levels)
7209AWDT冲压钢保持器 45 85 19 64.5 57.5 0.822 DT pairing (P0, P6, P5 levels)
7209BWDT冲压钢保持器 45 85 19 58.5 52.5 0.842 DT pairing (P0, P6, P5 levels)
7309AWDT冲压钢保持器 45 100 25 103 87 1.696 DT pairing (P0, P6, P5 levels)
7309BWDT冲压钢保持器 45 100 25 95 80.5 1.738 DT pairing (P0, P6, P5 levels)
7409AWDT冲压钢保持器 45 120 29 138 108 3.1 DT pairing (P0, P6, P5 levels)
7409BWDT冲压钢保持器 45 120 29 128 100 3.1 DT pairing (P0, P6, P5 levels)
7010AWDT冲压钢保持器 50 80 16 40 42 0.526 DT pairing (P0, P6, P5 levels)
7010BWDT冲压钢保持器 50 80 16 34.5 36.2 0.58 DT pairing (P0, P6, P5 levels)
7210AWDT冲压钢保持器 50 90 20 67 63 0.932 DT pairing (P0, P6, P5 levels)
7210BWDT冲压钢保持器 50 90 20 60.5 57 0.954 DT pairing (P0, P6, P5 levels)
7310AWDT冲压钢保持器 50 110 27 121 104 2.2 DT pairing (P0, P6, P5 levels)
7310BWDT冲压钢保持器 50 110 27 111 96 2.24 DT pairing (P0, P6, P5 levels)
7410AWDT冲压钢保持器 50 130 31 158 131 3.84 DT pairing (P0, P6, P5 levels)
7410BWDT冲压钢保持器 50 130 31 147 121 3.84 DT pairing (P0, P6, P5 levels)