Bronze Trapezoidal Nut 20905

Trapezoidal Lead Nut, Bronze, Tr 40 x 7, RH

Bronze Trapezodial Nut

Special high tensile bronze is selected for our smooth running, anti-wedging bronze nuts.
  • Material: Nook Bronze
  • Tensile Yield: 50,000 psi
  • Tensile Ultimate: 65,000 psi
  • Hardness: HB75
  • Dynamic co-efficient of friction: 0.125 with Nook Lubricant

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Product Bronze Trapezoidal Nut 20905
Product Info
Part Number 20905
Thread Direction RH
Type Bronze
Diameter 40
Lead [mm] 7
Starts 1
Pitch [mm] 7
Lash (Maximum Axial in) [mm] 0.32
Nominal Rod Diameter 40
Thread Code 905
B [mm] 60.0
C [mm] 60.0
E [mm] 20.00
F (n) Dia. [mm] (4) 11.00
F BCD [mm] 90.00
G [mm] 21.0
H [mm] 120.0
J [mm] M55.1.5
Forces and Torques
Torque to Raise 1 kN [Nm] 3.503
Flange Part Numbers
Flange Part Number 72005
Flange Weight [kg] 1.40
Nut Weight [g] 900
Performance Specifications
Efficiency [%] 32
Lead Accuracy +/- [μm/25mm] 6.25
Dynamic Load Capacity [N] 55160
Static Load Capacity [N] 176512

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