Bearings with absolute angle measuring system MA

General

With the purely inductive measuring system, maximum system accuracies up to +/- 1 µm discharge length can be realised. The measuring system consists of a solid measure with absolute code as well as a measuring head with a sensor and the evaluation electronics. Depending on the requirements, a single or multi-head scanner can be used. The measuring ring is attached directly to the bearing inner ring. The integrated measuring systems are available for the sizes 150 to 650. For some sizes, the overall height is greater than for the standard bearing without measuring system (details in the product tables). The measuring head is mounted directly on the outer ring; the fastening can take place radially or axially. During radial assembly, the clearance gap adjustment takes place via the shell diameter of the outer ring; complex setup of the measuring gap is no longer required.

Characteristics

■ Available from size 150 to 650 mm
■ Absolute coding
■ Single and multi-head scanner for maximum accuracy
■ Elimination of eccentricity and radial runout errors during multi-head scanning
■ Resistant to dirt IP67
■ Resistant to magnetic interference fields
■ High accuracy and resolution
■ Working temperature -10°C to +100°C
■ Suitable for high speeds
■ Interfaces to most CNC controls
■ direct cooperation with AMO for a fast connection

Single-head measurement (axial)

Double-head measurement (radial)

Recommendation distance plates for absolute measuring heads:

A distance plate is required if you want to attach absolute measuring heads directly to the bearing outer ring. M4 threads are already present in the bearing outer ring at a distance of 51mm. These are suitable for absolute measuring heads as well as for adapting a distance plate. In order for an absolute measuring head to be able to measure at the correct position, the distance DP-H must be adapted using such a distance plate, for example.