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）
7004ATNDT尼龙保持器 20 42 12 17.6 13.2 0.136 DT pairing (P0, P6, P5 levels)
7004BTNDT尼龙保持器 20 42 12 15.2 11.1 0.158 DT pairing (P0, P6, P5 levels)
7204ATNDT尼龙保持器 20 47 14 23.5 16.6 0.212 DT pairing (P0, P6, P5 levels)
7204BTNDT尼龙保持器 20 47 14 21.6 15.3 0.218 DT pairing (P0, P6, P5 levels)
7304CTNDT尼龙保持器 20 52 15 30.1 19.9 0.3 DT pairing (P0, P6, P5 levels)
7304ATNDT尼龙保持器 20 52 15 30.5 20.8 0.292 DT pairing (P0, P6, P5 levels)
7304BTNDT尼龙保持器 20 52 15 28.2 19.3 0.3 DT pairing (P0, P6, P5 levels)
7404ATNDT尼龙保持器 20 72 19 57.8 38.2 0.79 DT pairing (P0, P6, P5 levels)
7404BTNDT尼龙保持器 20 72 19 54.4 35.9 0.79 DT pairing (P0, P6, P5 levels)
7805BTNDT尼龙保持器 25 37 7 7.8 6.1 0.042 DT pairing (P0, P6, P5 levels)
7905ACTNDT尼龙保持器 25 42 9 12.1 10.3 0.086 DT pairing (P0, P6, P5 levels)
7005ATNDT尼龙保持器 25 47 12 18.3 14.8 0.158 DT pairing (P0, P6, P5 levels)
7005BTNDT尼龙保持器 25 47 12 16.6 13.4 0.182 DT pairing (P0, P6, P5 levels)
7205ATNDT尼龙保持器 25 52 15 26.3 20.5 0.26 DT pairing (P0, P6, P5 levels)
7205BTNDT尼龙保持器 25 52 15 24 18.8 0.266 DT pairing (P0, P6, P5 levels)
7305CTNDT尼龙保持器 25 62 17 42.8 30.6 0.486 DT pairing (P0, P6, P5 levels)
7305ATNDT尼龙保持器 25 62 17 43 31.5 0.47 DT pairing (P0, P6, P5 levels)
7305BTNDT尼龙保持器 25 62 17 39.5 29.3 0.482 DT pairing (P0, P6, P5 levels)
7405ATNDT尼龙保持器 25 80 21 64.5 46.3 1.054 DT pairing (P0, P6, P5 levels)
7405BTNDT尼龙保持器 25 80 21 60 43 1.054 DT pairing (P0, P6, P5 levels)