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）
78/670BTNDT尼龙保持器 670 820 69 680 1890 152.6 DT pairing (P0, P6, P5 levels)
78/1060ATNDT尼龙保持器 1060 1280 100 1430 5350 510 DT pairing (P0, P6, P5 levels)
7000AMDT车削铜保持器 10 26 8 8.75 5.2 0.038 DT pairing (P0, P6, P5 levels)
7000BMDT车削铜保持器 10 26 8 7.55 4.35 0.042 DT pairing (P0, P6, P5 levels)
7200AMDT车削铜保持器 10 30 9 8.8 5.4 0.064 DT pairing (P0, P6, P5 levels)
7200BMDT车削铜保持器 10 30 9 8.1 5 0.064 DT pairing (P0, P6, P5 levels)
7300CMDT车削铜保持器 10 35 11 16 9.25 0.11 DT pairing (P0, P6, P5 levels)
7300AMDT车削铜保持器 10 35 11 15.1 8.6 0.106 DT pairing (P0, P6, P5 levels)
7300BMDT车削铜保持器 10 35 11 14.2 8.1 0.108 DT pairing (P0, P6, P5 levels)
7001AMDT车削铜保持器 12 28 8 9.4 5.95 0.042 DT pairing (P0, P6, P5 levels)
7001BMDT车削铜保持器 12 28 8 8.1 5.05 0.048 DT pairing (P0, P6, P5 levels)
7201AMDT车削铜保持器 12 32 10 13 8.05 0.074 DT pairing (P0, P6, P5 levels)
7201BMDT车削铜保持器 12 32 10 12.1 7.5 0.076 DT pairing (P0, P6, P5 levels)
7301CMDT车削铜保持器 12 37 12 17.5 9.8 0.126 DT pairing (P0, P6, P5 levels)
7301AMDT车削铜保持器 12 37 12 15.4 9 0.12 DT pairing (P0, P6, P5 levels)
7301BMDT车削铜保持器 12 37 12 14.4 8.4 0.124 DT pairing (P0, P6, P5 levels)
7002AMDT车削铜保持器 15 32 9 9.95 6.85 0.06 DT pairing (P0, P6, P5 levels)
7002BMDT车削铜保持器 15 32 9 9.05 6.3 0.07 DT pairing (P0, P6, P5 levels)
7202AMDT车削铜保持器 15 35 11 14 9.3 0.09 DT pairing (P0, P6, P5 levels)
7202BMDT车削铜保持器 15 35 11 12.9 8.6 0.092 DT pairing (P0, P6, P5 levels)