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Standard Ball Screws

SFU DFU SFS SFI SFY ball screw

To meet customer's request of quick delivery,ALM has standard ballnut model type in stock.The ballnut configuration is standardized and it is possible to reduce numbers of design process by customer.

ALM Standard Ballnuts Ball Screw Basic Information

AccuracyC1,C3,C5,C7,C10(JIS standard)
Axial play0~0.005mm(Can be zero)


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 Typical Standard Ballnuts Ball Screw Types 

SFU ball screw

SFNU/SFU Ball Screws

SFNU/SFU ball screws are the perfect choices for applications where high durability,positioning accuracy,and smooth operation is required. 

DFU ball screw

DFU Ball Screws

DFU ball screw bearing capacity is large,and the operation of DFU ball screw is more stable.DFU ball screw is easy to rotate even using minimum axial play. 


SFS ball screw

SFS Ball Screws

SFS ball screw has higher speed but lower noise than other ball screw during operation.It is suitable for the design of high speed light load and low noise.

SFI ball screw

SFI Ball Screws

SFI ball screw has the features of high rigidity and high durability.With dust-proof design,SFI ball screw can prevents abnormal chips getting into the ballnut.

ALM Typical Standard Ballnuts Ball Screw Video Show




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