• Ultra duty SINGLE-HORN servo arm
  • 25T = ø6 mm standard-spline
  • 7075-T6 aircraft aluminum
  • Threaded 4X, M2 at 7.5, 10, 12.5, and 15mm (nominal)
  • Mount - M2 Allen torque to 1.5 N-m
  • Cinch - M2 Allen torque to 1.5 N-m

Price: $9.99

    Item #: PDRS15-25T
    Availability: In stock
    Usually ships In the same business day

    Notice: failure to torque the cinch bolt to 1.5N-m may result in inadequate fit

    This ultra duty SINGLE-HORN aluminum servo arm is CNC-machined from a solid billet of 7075-T6 aircraft aluminum, broached for the standard 25T spline, and threaded in 4X on 5mm centers for M2 linkage hardware.


    Fitted axially on a nominal 6mm diameter, 25T standard-spline shaft (lightly greased), secure axially with a stainless steel M3x8 bolt torqued to 2.0N-m. Then cinched radially with a stainless steel M2.5 socket cap (Allen) machine-thread bolt torqued to 1.5N-m.

    Disassembly is the reverse, e.g. first loosen cinch bolt, remove axial bolt, then remove arm.

    Mounting positions (M2 thread)

    • 7.5mm
    • 10mm
    • 12.5mm
    • 15mm