Inch Twin-Lead Acme Screw Assembly Features

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.

Please choose from the following Inch Twin-Lead Acme Screw Assembly categories

Please select a product below to proceed.

  Screw Nut
Product Info Details Forces and Torques Performance Specifications
Product Screw Direction Screw Material Lead [in] Pitch [in] Torque to Raise 1 lb. [in-lb] Efficiency [%] Dynamic Load Capacity [lb] Static Load Capacity [lb]
PowerAC 3/8"-6 TA w/Bronze Nut
  RH/LH 4140 Series 0.166 0.083 0.049 54 703 2250
PowerAC 3/8"-12 TA w/Bronze Nut
  RH/LH 4140 Series 0.083 0.083 0.036 37 703 2250
PowerAC 1/2"-10 TA w/Bronze Nut
  RH/LH 4140 Series 0.100 0.100 0.047 34 1250 4000
PowerAC 5/8"-2 2/3 TA w/Bronze Nut
  RH/LH 4140 Series 0.375 0.125 0.100 60 1953 6250
PowerAC 5/8"-5 TA w/Bronze Nut
  RH/LH 4140 Series 0.200 0.200 0.072 44 1953 6250
PowerAC 5/8"-8 TA w/Bronze Nut
  RH/LH 4140 Series 0.125 0.125 0.058 34 1953 6250
PowerAC 3/4"-3 TA w/Bronze Nut
  RH/LH 4140 Series 0.333 0.167 0.099 54 2812 9000
PowerAC 3/4"-5 TA w/Bronze Nut
  RH/LH 4140 Series 0.200 0.200 0.080 40 2812 9000
PowerAC 3/4"-6 TA w/Bronze Nut
  RH/LH 4140 Series 0.166 0.166 0.073 36 2812 9000
PowerAC 3/4"-10 TA w/Bronze Nut
  RH/LH 4140 Series 0.166 0.166 0.064 25 2812 9000
PowerAC 7/8"-6 TA w/Bronze Nut
  RH/LH 4140 Series 1.000 0.100 0.083 32 3828 12250
PowerAC 1"-1 TA w/Bronze Nut
  RH/LH 4140 Series 1.000 0.100 0.231 69 5000 16000
PowerAC 1"-4 TA w/Bronze Nut
  RH/LH 4140 Series 0.250 0.250 0.105 38 5000 16000
PowerAC 1"-5 TA w/Bronze Nut
  RH/LH 4140 Series 0.200 0.200 0.094 34 5000 16000
PowerAC 1"-6 TA w/Bronze Nut
  RH/LH 4140 Series 0.167 0.167 0.089 30 5000 16000
PowerAC 1"-10 TA w/Bronze Nut
  RH/LH 4140 Series 0.100 0.100 0.078 20 5000 16000
PowerAC 1 1/4"-4 TA w/Bronze Nut
  RH/LH 4140 Series 0.250 0.250 0.117 34 7812 25000
PowerAC 1 1/4"-5 TA w/Bronze Nut
  RH/LH 4140 Series 0.200 0.200 0.114 28 7812 25000
PowerAC 1 1/2"-2 2/3 TA w/Bronze Nut
  RH/LH 4140 Series 0.375 0.375 0.149 40 11250 36000
PowerAC 1 1/2"-4 TA w/Bronze Nut
  RH/LH 4140 Series 0.250 0.250 0.133 30 11250 36000
PowerAC 1 1/2"-5 TA w/Bronze Nut
  RH/LH 4140 Series 0.200 0.200 0.127 25 11250 36000
PowerAC 1 1/2"-10 TA w/Bronze Nut
  RH/LH 4140 Series 0.100 0.100 0.110 15 11250 36000
PowerAC 1 3/4"-4 TA w/Bronze Nut
  RH/LH 4140 Series 0.250 0.250 0.153 26 15312 49900
PowerAC 2"-4 TA w/Bronze Nut
  RH/LH 4140 Series 0.250 0.250 0.166 24 20000 64000

  Screw Nut
Product Info Details Forces and Torques Performance Specifications
Product Screw Direction Screw Material Lead [in] Pitch [in] Torque to Raise 1 lb. [in-lb] Efficiency [%] Dynamic Load Capacity [lb] Static Load Capacity [lb]
PowerAC 3/8"-6 TA w/Plastic Nut
  RH/LH 4140 Series 0.166 0.083 0.044 60 351 351
PowerAC 3/4"-6 TA w/Plastic Nut
  RH/LH 4140 Series 0.166 0.166 0.061 43 1406 1406
PowerAC 1"-5 TA w/Plastic Nut
  RH/LH 4140 Series 0.200 0.200 0.079 40 2500 2500
PowerAC 1 1/4"-5 TA w/Plastic Nut
  RH/LH 4140 Series 0.200 0.200 0.092 35 3906 3906