EST is an industry-leading manufacturer of forming racks, rolling dies, and spline swaging die for the external spline shafts. Our cold forming/extrusion tools will give you the advantage in high volume production with greater efficiency and accuracy, as well as reduced cost. Cold forming/extrusion tools offer considerable stable dimensions and good mechanical properties on the shaft surface. Helical, straight and tapered involute splines with modules range from 0.3 to 2, and serrations are all able to be cold formed.
EST’s exceptional tool quality combined with various material options and design flexibility allows you to increase your efficiency and productivity, all while lowering your per-piece cost.
We also make the forming racks and rolling dies for threads with pitch ranges from 0.5 mm to 8.0 mm.
EST can manufacture spline forming racks with modules ranging from 0.3 to 2.0 (80DP to 12DP); pressure angles including 20°, 30°, 37.5° and 45°; The racks overall lengths (OAL) can be 13”, 24”, 36”, 48” and 60”.
Spline Forming Racks
Thread Forming Racks
Cold Formed Spline Shafts
Form Rolling Dies
Spline rolling die capabilities:
Module Range: .03 M – 2.0 M (80 – 12 DP)
Pressure Angle: 20°, 30°, 37.5°, 45°
Rollers in Production
Spline Swaging Dies
Spline swaging dies can cold form a spline shaft at ANSI class 4 in seconds. Depending on the swaging machine being used, it can swage a spline on one end of the shaft or two ends at the same time.
The max. major dia. of the shaft can be swaged is 30mm and modules range from 0.3 to 2.