DRIVES AND FREQUENCY CONVERTERS
GST/GFL/GKS/GKR/GSS gearboxes of previous series
Country: Germany · Model: GST/GFL/GKS/GKR/GSS
GST, GFL, GKS, GKR and GSS are previous-generation gearboxes that preceded the modular g500 system. The manufacturer has already discontinued them, but they still work on machines in service. This page is used for repair, replacement and finding equivalents.
- Types
- GST helical, GFL flat shaft-mounted, GKS bevel-helical, GKR bevel, GSS worm-helical
- Status
- previous products (replacement, service)
Technical specifications
| Types | GST helical, GFL flat shaft-mounted, GKS bevel-helical, GKR bevel, GSS worm-helical |
|---|---|
| Status | previous products (replacement, service) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
All five series were made as geared motors, paired with three-phase asynchronous motors or servo motors. The GST are helical, of sturdy design with high efficiency, and their successor is the g500-H. The GFL are flat shaft-mounted and save space, successor g500-S. The GKS are bevel-helical, with high torsional rigidity and low backlash, so they suit accurate positioning, successor g500-B. The GKR are bevel, of lighter design, with wear-resistant tooth meshing. The GSS are worm-helical, with a particularly low noise level. There are no technical specifications in the catalogue data, so torque ranges and frame sizes are taken from the nameplate.
How to choose
Selecting a replacement starts with the nameplate on the gearbox and the documentation. For the GST look for the g500-H, for the GFL the g500-S, for the GKS the g500-B, which covers torques of 6–20 000 N·m. For planetary and bevel-planetary versions with low backlash there are the g7x0 and g8x0 of 2–1800 N·m. If a pair with a servo motor is needed, consider the g500 servo geared motors with MCS, MCA and m850 of 0.25–20.3 kW. Before ordering, check the shaft size, flange and mounting position against the old model, because the geometry of the new gearboxes may differ.
Request a price and lead time
GST/GFL/GKS/GKR/GSS gearboxes of previous series. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What can replace GST gearboxes?
The successor of the GST is the g500-H. Selection is made by the nameplate and documentation.
What is the successor of the GKS series?
The g500-B, a bevel-helical angular gearbox with low backlash and high torsional rigidity.
Are these gearboxes still produced?
No, the manufacturer has classed the GST, GFL, GKS, GKR and GSS as discontinued.
How does the GSS differ from the GKR?
The GSS is worm-helical with a low noise level, the GKR is bevel of lighter design with high efficiency.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.





