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PowerAC 3/4"-3 RA w/Plastic Nut

Inch Acme Screw Assembly, 3/4", 4140, 3 Turns Per Inch, RH, 2 Starts, Plastic Nut Read More
Product Specifications

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Product Specifications

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Specifications Diagram

Rolled Inch Acme Screw

(Screw)Product Info

Screw Code:
073-RA
Thread Direction:
RH
Screw Material:
4140 Series

(Screw)Details

Lead [in]:
0.333
Starts:
2
Pitch [in]:
0.167
Turns Per Inch:
3
Threads per Inch:
6
Thread Code:
073
Form:
2C
End Code for Types 1,2,3,5 [* Journals may show tracings of the thread]:
12
End Code for Type 4 [* Journals may show tracings of the thread]:
8

(Screw)Dimensions

A - Root Diameter Minimum [in]:
0.537
D - Nominal Rod Diameter [in]:
0.750

(Screw)Part Numbers

3 ft. Part Number:
11073
6 ft. Part Number:
12073
12 ft. Part Number:
13073
20 ft. Part Number:

(Screw)Performance Specifications

Lead Accuracy +/- [in/in]:
0.0003

(Screw)Weight

Screw Weight [lb./ft.]:
1.17

Inch Acme Nut with Optional Flange

(Nut)Product Info

Part Number:
30073
Thread Direction:
RH
Type:
Plastic

(Nut)Details

Lead [in]:
0.333
Starts:
2
Pitch [in]:
0.167
Turns Per Inch:
3
Lash (Maximum Axial) [in]:
0.009
Nominal Rod Diameter [in]:
0.750
Threads per Inch:
6
Thread Code:
073
Form:
2C

(Nut)Dimensions

B [in]:
1.25
C [in]:
1.13
E [in]:
0.50
F (n) Dia. [in]:
(4) .266
F BCD [in]:
2.090
G [in]:
0.53
H [in]:
2.63
J [in]:
1.000-18

(Nut)Forces and Torques

Torque to Raise 1 lb. [in-lb]:
0.089

(Nut)Flange Part Numbers

Flange No-Lash Part Number:
73262
Flange Part Number:
70262

(Nut)Weight

Flange Weight [lb]:
0.78
Nut Weight [lb]:
0.03

(Nut)Performance Specifications

Efficiency [%]:
60
Lead Accuracy +/- [in/in]:
0.0003
Dynamic Load Capacity [lb]:
1406
Static Load Capacity [lb]:
1406

More Details

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.

PowerAc™ Inch Acme 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