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INCH TWIN-LEAD BALL SCREW ASSEMBLIES
INCH TWIN-LEAD BALL SCREW ASSEMBLIES
Inch Ball Twin-Lead Screw Assembly

 

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

• Lead accuracy of ±0.004"/foot is standard
• For a shorter unthreaded center section, contact Nook Industries customer service 800-321-7800

Twin-Lead screws are stocked for immediate delivery without machined ends in the following sizes:
0375-0125, 0631-0200, 1000-0250, 1150-0200, 1250-0200, 1500-0250, 1550-1000

To order a twin-lead cut to a custom length and/or with machined ends, select a size from the Twin-Lead Chart, determine OAL, LH and RH thread length, nut, flange and, if required, EZZE-MOUNT™ bearing support. Consult the Twin-Lead Reference Number System in the Twin-Lead Assembly PDF above to complete your part number.


Ball Twin-Lead Screw Dimension Key

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INCH BALL TWIN-LEAD SCREW ASSEMBLIES
Compare Screw Nut
RH
BALL
NUT
PART
NUMBER
LH
BALL
NUT
PART
NUMBER

BALL
CIRCLE
DIA
(in.)

LEAD
(in.)
ROOT
(in.)
MATERIAL BALL NUT
DESCRIPTION
STATIC
LOAD
(lbs.)
DYN.
LOAD
(lbs.)
TORQUE
TO RAISE
1 lb.
(in.-lb.)
PRELOAD
RANGE
(lbs.)
SPRING RATE
x 106
(lb./in.)
PDF
PAGE
SBN9574 SBN9576 .375 .125 .300 Alloy SBN Single Circuit 1415 136 .022 - - 146
SBN7502 SBN8282 .375 .125 .300 Alloy SBN Double Circuit 2830 272 .022 - - 146
SBN10325 SBN10409 .631 .200 .500 Alloy SBN Single Circuit [Wrench Flat] 6384 815 .035 - - 146
SBN10263 SBN10264 .631 .200 .500 Alloy SBN Internal Return 5250 712 .035 - - 146
SEL10408 SEL10410 .631 .200 .500 Alloy SEL Adjustable Preload 6384 815 .035 78 - 233 - 146
SBN10466 SBN10468 1.00 .250 .820 Alloy SBN Single Circuit 13913 1612 .044 - - 146
SBN8278 SBN8284 1.00 .250 .820 Alloy SBN Double Circuit Flanged 27826 3224 .044 - - 146
SEL10474 SEL10477 1.00 .250 .820 Alloy SEL Adjustable Preload 13913 1612 .044 330 - 146
SBN1566 SBN0207 1.150 .200 1.015 Alloy SBN Double Circuit Flanged 26180 2370 .035 - - 146
SEL4270 SEL0206 1.150 .200 1.015 Alloy SEL Adjustable Preload 13090 1185 .035 240 - 146
SBN10187 SBN10189 1.250 .200 1.115 Alloy SBN Double Circuit w/Wipper 34688 3336 .035 - - 146
PRN10191 PRN10193 1.250 .200 1.115 Alloy PRN Preloaded 17344 1668 .035 - 4.25 146
SSN0393 SSN0398 1.250 .200 1.115 Alloy SSN Preloaded Flanged 17344 1668 .035 - 4.25 146
SBN9587 SBN1990 1.500 .250 1.320 Alloy SBN Double Circuit Flanged 44030 4198 .044 - - 146
SEL4271 SEL4573 1.500 .250 1.320 Alloy SEL Adjustable Preload 44030 4198 .044 920 - 146
SBN8280 SBN1995 1.500 1.000 1.140 Alloy SBN Double Circuit 34662 7560 .177 - - 146
SEL0698 SEL0697 1.500 1.000 1.140 Alloy SEL Adjustable Preload 34662 7560 .177 1650 - 146
SSN0396 SSN10267 2.000 .200 1.849 Alloy SSN Preloaded Flanged 65903 6181 .035 - 6.50 146
SBN7516 SBN4000 2.250 .500 1.850 Alloy SBN Double Circuit 142660 21306 .088 - - 146
SBN8346 SBN4005 2.250 .500 1.850 Alloy SBN Double Circuit Keyed 21306 21306 .088 - - 146
SEL10084 SEL10090 2.250 .500 1.850 Alloy SEL Adjustable Preload 142660 21306 .088 2130 - 6390 - 146
SBN3243 SBN10329 2.500 .250 2.320 Alloy SBN Double Circuit 81938 6315 .044 - - 146
SBN7519 SBN10257 3.000 .660 2.480 Alloy SBN Triple Circuit 271733 44316 .117 - - 146
SEL10085 SEL10330 3.000 .660 2.480 Alloy SEL Adjustable Preload 271733 44316 .117 4430 - 13295 - 146
RH
BALL
NUT
PART
NUMBER
LH
BALL
NUT
PART
NUMBER
BALL
CIRCLE
DIA
(in.)
LEAD
(in.)

ROOT
(in.)

MATERIAL BALL NUT
DESCRIPTION
STATIC
LOAD
(lbs.)
DYN.
LOAD
(lbs.)
TORQUE
TO RAISE
1 lb.
(in.-lb.)
PRELOAD
RANGE
(lbs.)
SPRING RATE
x 106
(lb./in.)
PDF
PAGE
Compare Screw Nut  

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