PowerAC Trapezoidal Assembly 907 RA w/Bronze Nut

Trapezoidal Lead Screw Assembly, Tr 65 x 12, 4140, RH, Bronze 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.

Bronze Inch Acme

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

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 907 RA w/Bronze Nut
Trapezoidal Lead Screw
(Screw) Product Info
Screw Code 907 RA
Screw Material 4140 Series
Thread Direction RH
(Screw) Details
Diameter 65
Lead 12
Starts 1
Pitch [mm] 12
Lead Accuracy +/- [μm/25mm] 6.25
Thread Code 907
End Code for Types 1,2,3,5 [* Journals may show tracings of the thread] 45
End Code for Type 4 [* Journals may show tracings of the thread] 28
(Screw) Dimensions
A - Root Diameter Mmmimum [mm] 50.20
D - Nominal Rod Diameter 65
(Screw) Part Numbers
1800 mm Part Number 15907
3600 mm Part Number 16907
900 mm Part Number 14907
(Screw) Weight
Weight Per Meter [kg] 21.3
Trapezoidal Lead Nut
(Nut) Product Info
Part Number 20907
Thread Direction RH
Type Bronze
(Nut) Details
Diameter 65
Lead [mm] 12
Starts 1
Pitch [mm] 12
Lash (Maximum Axial in) [mm] 0.42
Nominal Rod Diameter 65
Thread Code 907
(Nut) Dimensions
B [mm] 85.0
C [mm] 85.0
E [mm] 35.00
F (n) Dia. [mm] (4) 17.00
F BCD [mm] 120.00
G [mm] 36.0
H [mm] 150.0
J [mm] M80x2
(Nut) Forces and Torques
Torque to Raise 1 kN [Nm] 5.775
(Nut) Flange Part Numbers
Flange Part Number 72007
(Nut) Weight
Flange Weight [kg] 3.30
Nut Weight [g] 2100
(Nut) Performance Specifications
Efficiency [%] 33
Lead Accuracy +/- [μm/25mm] 6.25
Dynamic Load Capacity [N] 145651
Static Load Capacity [N] 466084

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End Machining - Type 1 - Short Journal Typically Used With Single Bearing or Single Bearing EZZE-Mount

End Machining - Type 2 - Medium Journal Typically Used With Duplexed Bearings

End Machining - Type 3 - Long Journal Typically Used With Multiple Sets of Bearings or Double Bearing EZZE-Mount

End Machining - Type 4 - Shaft Journal With No Locknut Thread

End Machining - Type 5 - Heavy Duty Journal Typically Used With High Capacity Fixed Support

Screw Accessories - Acme Screw Lubricant