Patent ID: 7263901

Claim:
A measuring arrangement at a roller bearing, the bearing comprising a relatively stationary bearing component, a displacement bearing component displaceable with respect to the stationary component and rolling elements between the bearing components for allowing the displacement between them; the measuring arrangement being operable for determining a direction of displacement of the displaceable bearing component; the measuring arrangement comprising four electric resistors operable to change their respective electrical resistances depending on at least one of pressure and tensile force applied to the resistor and a bridge circuit connecting the resistors; the four resistors in the bridge circuit being arranged parallel to a direction of displacement of the rolling elements or of the displaceable bearing component, the resistors arranged one behind another in a line in a measuring area on one of the bearing components and are arranged such that a first distance from the first of the resistors to the second of the resistors is the same as a second distance from the third of the resistors to the fourth of the resistors, and such that a third distance between the two of the resistors at the center of the arrangement of four resistors is greater than the first distance between the first resistor and the second resistor and is greater than the second distance between the third resistor and the fourth resistor.