Design

Type range

Mounting 

arrangement

Material quality (high loading capacity)

processes by carburization, 

quenching and tooth grinding

 process

ZLYJ112,133,146,173,200,

225,250,280,315,330,375,

420,450;ZSYJ315,375,

395,420,450,560

no strict limitation

Gear surface

Hollow input axis

HRC54~62

there is large specification

thrust bearing that will bear 

axial thrust force while the 

screw is working