Precise spot welding

The cycloidal design makes Nabtesco gears very precise, dynamic, durable and compact. They enable fast acceleration and braking, in addition to high-precision positioning with backlash of less than one arcminute. This makes it possible to weld spots – even complex geometrical structures – within a tolerance of hundredths of millimetres, without having to reclamp the workpiece. In addition, the gears are not affected by vibrations and can withstand high impact loads (up to 5 times rated torque). 

In particular the hollow shaft gears of the RS, RV-C and RD_-C series, due to their high precision, dynamics and reliability, have withstood the test of time in many welding applications around the world. The large hollow shaft provides sufficient space for cables and supply lines. The inside of the cycloidal gear is specially designed to provide optimal protection of the cables and supply lines against external influences.

RS series:

The gears of the RS series are designed for axial loads up to 9 t and high-precision positioning of extremely heavy loads. The cast iron base can easily be mounted to the floor to ensure stability. The motor is mounted at a right angle for easy access. The sturdy, robust design and the high load-bearing capacity of RS eccentric gears is said to make them superior to conventional camshaft gears and worm gears and suitable for use in rotary tables and positioners. 

RV-C series:

Component sets of the RV-C series are suitable for demanding applications that require high precision. They feature high torsional and tilting rigidity, in addition to excellent repeat and path accuracy. The large, integrated angular contact ball bearings in the gears absorb high forces and moments, and also extend the service life. This eliminates the need for the customer to provide bearings, as well as the production costs for the bearing mounts.

RD_-C series:

Nabtesco offers the RD_-C series for high-performance and extremely precise servo gears. They are available as coaxial (RDS-C), parallel shaft (RDP-C) and angular gears (RDR-C). Due to their versatility and extremely high performance, the applications are virtually unlimited. Nabtesco delivers the gears of the RD-C series pre-filled with lubricants and completely encapsulated. They feature a built-in adapter plate for the motor as well as a motor shaft coupling for servo motors. This reduces the time needed for design and assembly.

For individual requirements Nabtesco also develops special solutions tailored to the exact requirements of the application, in coordination with the customer.