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PowerAC 2"-4 TA w/Bronze Nut

Inch Twin-Lead Acme Screw Assembly, 2", 4 Turns Per Inch, 1 Starts, Bronze Nuts Read More
Product Specifications

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Product Specifications

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Specifications Diagram

Rolled Inch Twin-Lead Acme Screw

(Twin-Lead Screw)Product Info

Screw Code:
204 TA
Screw Direction:
RH/LH
Screw Material:
4140 Series

(Twin-Lead Screw)Details

Lead [in]:
0.250
Starts:
1
Pitch [in]:
0.250
Turns Per Inch:
4
Threads per Inch:
4
Thread Code:
204
Form:
2C
End Code for Types 1,2,3,5 [* Journals may show tracings of the thread]:
40
End Code for Type 4 [* Journals may show tracings of the thread]:
22

(Twin-Lead Screw)Dimensions

A - Root Diameter Minimum [in]:
1.694
D - Nominal Rod Diameter [in]:
2.000
Incomplete Overlapping Thread Length [in]:
3.00
Maximum Overall Length [in]:
144
Maximum Useable LH & RH Thread [in]:
70.50

(Twin-Lead Screw)Weight

Weight Per Foot [lb]:
9.28

(Twin-Lead Screw)Part Numbers

36" Part Number:
72" Part Number:
144" Part Number:
TL2-4RS 144

(Twin-Lead Screw)Performance Specifications

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

Inch Acme Nut with Optional Flange

(Nut)Product Info

Part Number:
80204
Thread Direction:
LH
Type:
Bronze

(Nut)Details

Lead [in]:
0.250
Starts:
1
Pitch [in]:
0.250
Turns Per Inch:
4
Lash (Maximum Axial) [in]:
0.012
Nominal Rod Diameter [in]:
2.000
Threads per Inch:
4
Thread Code:
204
Form:
2C

(Nut)Dimensions

B [in]:
3.47
C [in]:
2.75
E [in]:
0.88
F (n) Dia. [in]:
(4) .531
F BCD [in]:
4.062
G [in]:
0.90
H [in]:
4.94
J [in]:
2.548-18

(Nut)Forces and Torques

Torque to Raise 1 lb. [in-lb]:
0.166

(Nut)Flange Part Numbers

Flange No-Lash Part Number:
73500
Flange Part Number:
FLG7573

(Nut)Weight

Flange Weight [lb]:
4.73
Nut Weight [lb]:
2.59

(Nut)Performance Specifications

Efficiency [%]:
24
Lead Accuracy +/- [in/in]:
0.0003
Dynamic Load Capacity [lb]:
20000
Static Load Capacity [lb]:
64000

(Nut on Other Side)Product Info

Part Number:
20204
Thread Direction:
RH
Type:
Bronze

(Nut on Other Side)Details

Lead [in]:
0.250
Starts:
1
Pitch [in]:
0.250
Turns Per Inch:
4
Lash (Maximum Axial) [in]:
0.012
Nominal Rod Diameter [in]:
2.000
Threads per Inch:
4
Thread Code:
204
Form:
2C

(Nut on Other Side)Dimensions

B [in]:
3.47
C [in]:
2.75
E [in]:
0.88
F (n) Dia. [in]:
(4) .531
F BCD [in]:
4.062
G [in]:
0.90
H [in]:
4.94
J [in]:
2.548-18

(Nut on Other Side)Forces and Torques

Torque to Raise 1 lb. [in-lb]:
0.166

(Nut on Other Side)Flange Part Numbers

Flange No-Lash Part Number:
73500
Flange Part Number:
FLG7573

(Nut on Other Side)Weight

Flange Weight [lb]:
4.73
Nut Weight [lb]:
2.59

(Nut on Other Side)Performance Specifications

Efficiency [%]:
24
Lead Accuracy +/- [in/in]:
0.0003
Dynamic Load Capacity [lb]:
20000
Static Load Capacity [lb]:
64000

More Details

Twin-Lead acme screws offer dual opposing motion using a single drive system. These one-piece high performance acme screws are made from high alloy steel that is black oxided for protection and can be assembled with Nook PowerAc™ acme nuts, flanges and EZZE-MOUNT™ bearing supports to form cost effective systems.. Twin-lead acme screws can be used in molding machines, packaging equipment, food processing machinery, robotics, material handling equipment, tire manufacturing and assembly applications.

Twin-Lead screws stocked for delivery without machined ends are listed in the chart below. To order a twin-lead cut to a custom length and/or with machined ends, select a size from the chart below, determine OAL, LH and RH thread length, nut, flange and, if required, EZZE-MOUNT™ bearing support.