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）
7838BTNDT尼龙保持器 190 240 24 118 214 4.94 DT pairing (P0, P6, P5 levels)
7938CTNDT尼龙保持器 190 260 33 239 385 9.96 DT pairing (P0, P6, P5 levels)
7938ATNDT尼龙保持器 190 260 33 216 350 10.04 DT pairing (P0, P6, P5 levels)
7938BTNDT尼龙保持器 190 260 33 192 315 10.14 DT pairing (P0, P6, P5 levels)
7038ATNDT尼龙保持器 190 290 46 365 560 22.6 DT pairing (P0, P6, P5 levels)
7038BTNDT尼龙保持器 190 290 46 325 505 21.6 DT pairing (P0, P6, P5 levels)
7238ATNDT尼龙保持器 190 340 55 510 825 44.8 DT pairing (P0, P6, P5 levels)
7238BTNDT尼龙保持器 190 340 55 460 750 45 DT pairing (P0, P6, P5 levels)
7338ATNDT尼龙保持器 190 400 78 730 1200 95 DT pairing (P0, P6, P5 levels)
7338BTNDT尼龙保持器 190 400 78 670 1100 94.4 DT pairing (P0, P6, P5 levels)
7840ATNDT尼龙保持器 200 250 24 134 247 5.22 DT pairing (P0, P6, P5 levels)
7840BTNDT尼龙保持器 200 250 24 119 221 5.18 DT pairing (P0, P6, P5 levels)
7940CTNDT尼龙保持器 200 280 38 305 490 13.7 DT pairing (P0, P6, P5 levels)
7940ATNDT尼龙保持器 200 280 38 278 445 14 DT pairing (P0, P6, P5 levels)
7940BTNDT尼龙保持器 200 280 38 247 400 13.98 DT pairing (P0, P6, P5 levels)
7040ATNDT尼龙保持器 200 310 51 390 620 27.4 DT pairing (P0, P6, P5 levels)
7040BTNDT尼龙保持器 200 310 51 350 560 25.4 DT pairing (P0, P6, P5 levels)
7240ATNDT尼龙保持器 200 360 58 550 900 53 DT pairing (P0, P6, P5 levels)
7240BTNDT尼龙保持器 200 360 58 495 815 53.2 DT pairing (P0, P6, P5 levels)
7340ATNDT尼龙保持器 200 420 80 770 1320 108.8 DT pairing (P0, P6, P5 levels)