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）
7309ATNDT尼龙保持器 45 100 25 103 87 1.696 DT pairing (P0, P6, P5 levels)
7309BTNDT尼龙保持器 45 100 25 95 80.5 1.738 DT pairing (P0, P6, P5 levels)
7409ATNDT尼龙保持器 45 120 29 138 108 3.1 DT pairing (P0, P6, P5 levels)
7409BTNDT尼龙保持器 45 120 29 128 100 3.1 DT pairing (P0, P6, P5 levels)
7810BTNDT尼龙保持器 50 65 7 13.9 14.7 0.086 DT pairing (P0, P6, P5 levels)
7910ACTNDT尼龙保持器 50 72 12 25.9 28.4 0.264 DT pairing (P0, P6, P5 levels)
7010ATNDT尼龙保持器 50 80 16 40 42 0.526 DT pairing (P0, P6, P5 levels)
7010BTNDT尼龙保持器 50 80 16 34.5 36.2 0.58 DT pairing (P0, P6, P5 levels)
7210ATNDT尼龙保持器 50 90 20 67 63 0.932 DT pairing (P0, P6, P5 levels)
7210BTNDT尼龙保持器 50 90 20 60.5 57 0.954 DT pairing (P0, P6, P5 levels)
7310CTNDT尼龙保持器 50 110 27 122 103 2.28 DT pairing (P0, P6, P5 levels)
7310ATNDT尼龙保持器 50 110 27 121 104 2.2 DT pairing (P0, P6, P5 levels)
7310BTNDT尼龙保持器 50 110 27 111 96 2.24 DT pairing (P0, P6, P5 levels)
7410ATNDT尼龙保持器 50 130 31 158 131 3.84 DT pairing (P0, P6, P5 levels)
7410BTNDT尼龙保持器 50 130 31 147 121 3.84 DT pairing (P0, P6, P5 levels)
7811BTNDT尼龙保持器 55 72 9 23.6 23.6 0.116 DT pairing (P0, P6, P5 levels)
7911ACTNDT尼龙保持器 55 80 13 29.3 33.5 0.368 DT pairing (P0, P6, P5 levels)
7011ATNDT尼龙保持器 55 90 18 52.5 55.5 0.782 DT pairing (P0, P6, P5 levels)
7011BTNDT尼龙保持器 55 90 18 45.4 47.5 0.84 DT pairing (P0, P6, P5 levels)
7211ATNDT尼龙保持器 55 100 21 83 79 1.226 DT pairing (P0, P6, P5 levels)