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）
7340BMDT车削铜保持器 200 420 80 700 1200 110.6 DT pairing (P0, P6, P5 levels)
7844AMDT车削铜保持器 220 270 24 138 270 5.68 DT pairing (P0, P6, P5 levels)
7844BMDT车削铜保持器 220 270 24 122 241 5.64 DT pairing (P0, P6, P5 levels)
7944AMDT车削铜保持器 220 300 38 279 465 15.2 DT pairing (P0, P6, P5 levels)
7944BMDT车削铜保持器 220 300 38 248 415 15.18 DT pairing (P0, P6, P5 levels)
7044AMDT车削铜保持器 220 340 56 460 785 37 DT pairing (P0, P6, P5 levels)
7044BMDT车削铜保持器 220 340 56 410 710 36.8 DT pairing (P0, P6, P5 levels)
7244AMDT车削铜保持器 220 400 65 665 1170 73 DT pairing (P0, P6, P5 levels)
7244BMDT车削铜保持器 220 400 65 600 1060 72.2 DT pairing (P0, P6, P5 levels)
7344AMDT车削铜保持器 220 460 88 805 1450 146.4 DT pairing (P0, P6, P5 levels)
7344BMDT车削铜保持器 220 460 88 730 1330 145.8 DT pairing (P0, P6, P5 levels)
7848AMDT车削铜保持器 240 300 28 179 350 8.7 DT pairing (P0, P6, P5 levels)
7848BMDT车削铜保持器 240 300 28 159 315 8.7 DT pairing (P0, P6, P5 levels)
7948AMDT车削铜保持器 240 320 38 293 520 16.74 DT pairing (P0, P6, P5 levels)
7948BMDT车削铜保持器 240 320 38 261 465 16.86 DT pairing (P0, P6, P5 levels)
7048AMDT车削铜保持器 240 360 56 485 865 38.6 DT pairing (P0, P6, P5 levels)
7048BMDT车削铜保持器 240 360 56 435 780 39.8 DT pairing (P0, P6, P5 levels)
7248AMDT车削铜保持器 240 440 72 705 1330 101.8 DT pairing (P0, P6, P5 levels)
7248BMDT车削铜保持器 240 440 72 635 1200 100.6 DT pairing (P0, P6, P5 levels)
7348AMDT车削铜保持器 240 500 95 920 1760 185 DT pairing (P0, P6, P5 levels)