Leine & Linde: Encoders (Magnetic 2000 Series)

Bearingless encoders for large shafts.

Low-maintenance for large shafts

Certain motors benefit from having the speed feedback sensor mounted directly on the main shaft. A bearingless sensor, mounted between the other parts in the machinery, takes up less space and requires less maintenance. The Leine & Linde 2000 series is designed to meet this demand, also for shaft dimensions around a meter, or larger. It is based on a concept of a rotating ring together with a fix scanning unit for generation of incremental pulses.

Wider tolerance for runout

The 2000 series is suitable for heavy duty applications, where motors are exposed to powerful shocks and vibrations, subjected to heavy mechanical forces. The 2000 series accepts an air gap of up to 6 mm between the rotating ring and the fixed scanning unit, which allows for a certain runout of the motor. This is why the Leine & Linde ring offers significantly better performance than most ring products found on the market.

Commissioning made simple

Easy access for mounting and service saves commissioning time. The Leine & Linde ring can be mounted from two sides of the shaft, as it is segmented into pieces. Fix the ring to the shaft by flange mounting or by the Leine & Linde ClampFit solution. With the ClampFit solution, the ring automatically tightens around the mating shaft as the ring segments are screwed together. This enables fixing to a standard cylindrical shaft without any flange expansion prepared and makes retrofitting easy.

Various interfaces

The scanning head unit uses several market standard interfaces for incremental signals. The interface High Current HTL has been specially designed for long distance transmission. This is extra useful in the process industry, where very long cables may be needed to reach out to each encoder in the factory.

Technical Data

• Diameter: 140-1000 mm

• Vibration: 200 m/s2

• Shock: 1500 m/s2

• Encapsulation level: IP67