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Features of THK Japan imported trapezoidal spline DPM/DP structure

Publish Time：

2022-10-24

The dedicated rolling spline shaft features standard-length shafts specifically designed for trapezoidal splines.

Enhanced wear resistance: The shaft teeth are cold-formed, and after surface hardening, the hardness exceeds 250HV. Then, mirror polishing is performed. As a result, the shaft boasts high wear resistance, achieving an exceptionally smooth effect when used with trapezoidal splines.

Improved mechanical properties: Cold forming creates a fiber flow line along the tooth profile within the shaft tooth surface structure, resulting in an extremely dense structure at the tooth root. This increases fatigue strength.

Models: DPM1220 DPM1230 DPM1520 DPM1530 DPM1723 DPM1735

DPM2028 DPM2040 DPM2536 DPM2040 DPM3040 DPM3056

DPM3544 DPM3560 DPM4555 DPM4050

DP type: DP12 DP15 DP17 DP20 DP25

DP30 DP35 DP40 DP45 DP50

It is recommended to use a clearance fit between the outer diameter of the spline nut and the support seat.

Chamfer of the support seat opening.

To increase the strength of the trapezoidal spline flange root, the corners need to be processed into an R shape. Therefore, do not chamfer the inner diameter opening.

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sj2024-12-31

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