PowerAC Trapezoidal Assembly 904 RA w/Plastic Nut

Trapezoidal Lead Screw Assembly, Tr 26 x 6, 4140, RH, Plastic Nut

Nook Industries Offers the largest selections of rolled amce screw sizes in the industry. Rolled thread screws are cost effective and are stocked for quick delivery.

Similar in construction and materials to PowerAc™ Inch Acme Screws and Nuts, the Trapezoidal thread form screws and nuts include a centralizing (C) thread form to prevent wedging and binding. When compared to general-purpose thread forms (G), centralizing threads are manufactured with tighter tolerances and reduced clearance on the major diameter.

Plastic Inch Acme

The high strength and inherent lubricity of plastic Acme and Trapezoidal nut material can result in product life that can equal or exceed conventional nut materials.
  • Tensile Strength @70°F: 8,000 psi
  • Compressive Strength @70°F: 16,000 psi
  • PV Limit: 2,700 lubricated
  • Co-efficient of friction: 0.10 lubricated

To configure a part number, download 2D/3D models, or request a quote, please select the "Quote or Download" tab and click the "Configure" button. (Step 4 of 4)

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Product PowerAC Trapezoidal Assembly 904 RA w/Plastic Nut
Trapezoidal Lead Screw
(Screw) Product Info
Screw Code 904 RA
Screw Material 4140 Series
Thread Direction RH
(Screw) Details
Diameter 26
Lead 6
Starts 1
Pitch [mm] 6
Lead Accuracy +/- [μm/25mm] 6.25
Thread Code 904
End Code for Types 1,2,3,5 [* Journals may show tracings of the thread] 17
End Code for Type 4 [* Journals may show tracings of the thread] 10
(Screw) Dimensions
A - Root Diameter Mmmimum [mm] 17.84
D - Nominal Rod Diameter 26
(Screw) Part Numbers
1800 mm Part Number 15904
3600 mm Part Number 16904
900 mm Part Number 14904
(Screw) Weight
Weight Per Meter [kg] 3.2
Trapezoidal Lead Nut
(Nut) Product Info
Part Number 30904
Thread Direction RH
Type Plastic
(Nut) Details
Diameter 26
Lead [mm] 6
Starts 1
Pitch [mm] 6
Lash (Maximum Axial in) [mm] 0.30
Nominal Rod Diameter 26
Thread Code 904
(Nut) Dimensions
B [mm] 45.0
C [mm] 45.0
E [mm] 15.00
F (n) Dia. [mm] (4) 7.00
F BCD [mm] 70.00
G [mm] 16.0
H [mm] 85.0
J [mm] M40x15
(Nut) Forces and Torques
Torque to Raise 1 kN [Nm] 2.164
(Nut) Flange Part Numbers
Flange Part Number 72004
(Nut) Weight
Flange Weight [kg] 0.54
Nut Weight [g] 79
(Nut) Performance Specifications
Efficiency [%] 44
Lead Accuracy +/- [μm/25mm] 6.25
Dynamic Load Capacity [N] 11652
Static Load Capacity [N] 11652

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