Unmounted system kit consists of:
Engine system for W-double rail SLW-1040 with 4 house floating bearings (WJ200UM-01-10)
and Trapezoidal threaded spindle TR10x2 right (undrilled).
Included the accessories for assembly as shown on the article image.
Flat and compact
High torsional stability (stiffening)
Hard anodized aluminum rail
Shaft end supports made of chrome-plated zinc