Bronze Trapezoidal Nut 20903

Trapezoidal Lead Nut, Bronze, Tr 20 x 4, 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 20903
Product Info
Part Number 20903
Thread Direction RH
Type Bronze
Diameter 20
Lead [mm] 4
Starts 1
Pitch [mm] 4
Lash (Maximum Axial in) [mm] 0.24
Nominal Rod Diameter 20
Thread Code 903
B [mm] 32.0
C [mm] 34.0
E [mm] 13.00
F (n) Dia. [mm] (4) 7.00
F BCD [mm] 60.00
G [mm] 14.0
H [mm] 75.0
J [mm] M30x1.5
Forces and Torques
Torque to Raise 1 kN [Nm] 1.818
Flange Part Numbers
Flange Part Number 72003
Flange Weight [kg] 0.39
Nut Weight [g] 173
Performance Specifications
Efficiency [%] 35
Lead Accuracy +/- [μm/25mm] 6.25
Dynamic Load Capacity [N] 13790
Static Load Capacity [N] 44128

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