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Bi-directional Ball Screws

bi-directional ball screw

Bi-directional ball screw consists of a screw shaft with a left and right thread and two ballnuts.This is a good choice when you need to move two ballnuts in opposite directions through a motor.


ALM Bi-directional Ball Screw Basic Information


DiameterMiniature bi-directional ball screw:4~16mm,large bi-directional ball screw:16~80mm
PitchMiniature bi-directional ball screw:0.5~20mm,large bi-directional ball screw:2~32mm
MaterialGcr15(HRC60~62),9Cr18(HRC55~58)
AccuracyC1,C3,C5,C7(JIS standard)
Axial play0~0.005mm(Can be zero)
PreloadP0,P1,P2,P3,P4
Efficiency

>90%

FeaturesClean and smooth,excellent surface finsh
CertificatesISO9001:2015,CE certificate,RoHS and reach compliance
ALM provides custom service,ball screws can be manufactured according to customer requirements.


ALM Bi-directional Ball Screw Ballnut Types


The following shows ALM common bi-directional ballnut,other ballnuts can be manufactured according to customer's requirement.


threaded nose ballnut bi-directional ball screw

Ballnut With Threaded Nose

square flanged ballnut bi-directional ball-screw

Square Flanged Ballnut

flanged ballnut bi-directional ball screw

Double-cut Flanged Ballnut

round flanged ballnut bi-directional ball screw

Round Flanged Ballnut

ballnut-with-thread-nose-ball-screw (1)

Ballnut With Keyway

square-ballnut-ball-screw (2)

Square Ballnut


ALM Common Bi-directional Ball Screw Model


The following shows ALM commonly used standard and custom bi-directional ball screw models;other models can be manufactured according to customer drawings.


     Lead

lead screw

 Diameter



1mm



2mm



2.5mm



3mm



4mm



5mm



6mm



8mm




10mm



12mm



15mm



20mm

4mm










5mm








6mm





8mm





10mm
12mm
14mm
16mm





20mm





25mm






32mm






★Customized Ball Screw Model:○  ★Standard Ball Screw Model:● 


ALM Bi-directional Ball Screw Advantages:


Clean and smooth;


Excellent surface finish;


More efficient:more than 90%;


High positioning accuracy:C1,C3,C5;


ALM Bi-directional Ball Screw Intelligent Manufacturing and Inspection



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 sales@autolinearmotion.com
 No 1998 Jinfeng south road,Wuzhong district,Suzhou China.

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