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）
7418BTNDT尼龙保持器 90 225 54 325 364 22.8 DT pairing (P0, P6, P5 levels)
7919ACTNDT尼龙保持器 95 130 18 4.8 6.7 1.194 DT pairing (P0, P6, P5 levels)
7019ATNDT尼龙保持器 95 145 24 3.8 5 2.86 DT pairing (P0, P6, P5 levels)
7019BTNDT尼龙保持器 95 145 24 97 121 2.64 DT pairing (P0, P6, P5 levels)
7219ATNDT尼龙保持器 95 170 32 2.6 3.6 5.36 DT pairing (P0, P6, P5 levels)
7219BTNDT尼龙保持器 95 170 32 1.9 2.6 5.48 DT pairing (P0, P6, P5 levels)
7319CTNDT尼龙保持器 95 200 45 300 319 12.24 DT pairing (P0, P6, P5 levels)
7319ATNDT尼龙保持器 95 200 45 1.9 2.6 11.66 DT pairing (P0, P6, P5 levels)
7319BTNDT尼龙保持器 95 200 45 1.7 2.4 11.96 DT pairing (P0, P6, P5 levels)
7820ATNDT尼龙保持器 100 125 13 34 50.5 0.72 DT pairing (P0, P6, P5 levels)
7920ACTNDT尼龙保持器 100 140 20 4.5 6.3 1.608 DT pairing (P0, P6, P5 levels)
7920ATNDT尼龙保持器 100 140 20 78 105 1.86 DT pairing (P0, P6, P5 levels)
7020ATNDT尼龙保持器 100 150 24 3.6 5 2.96 DT pairing (P0, P6, P5 levels)
7020BTNDT尼龙保持器 100 150 24 99.5 127 2.74 DT pairing (P0, P6, P5 levels)
7220ATNDT尼龙保持器 100 180 34 233 251 6.44 DT pairing (P0, P6, P5 levels)
7220BTNDT尼龙保持器 100 180 34 212 229 6.56 DT pairing (P0, P6, P5 levels)
7320CTNDT尼龙保持器 100 215 47 320 346 15.06 DT pairing (P0, P6, P5 levels)
7320ATNDT尼龙保持器 100 215 47 335 385 14.58 DT pairing (P0, P6, P5 levels)
7320BTNDT尼龙保持器 100 215 47 310 355 14.86 DT pairing (P0, P6, P5 levels)
7821ATNDT尼龙保持器 105 130 13 35 53 0.74 DT pairing (P0, P6, P5 levels)