Rolling bearing with positioning device

• Main Authors: STAKEMEIER, BERND, ELVERT GUNTHER
• Format: Patent
• Language: Chinese; English
• Published: 12.08.2022
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

The invention relates to a rolling bearing having at least two bearing rings (2, 3) which are rotatably arranged relative to one another, at least one row of rolling elements (4) which are arranged so as to be able to roll between the bearing rings (2, 3), and a positioning device (5) for determining an absolute angular position of the bearing rings (2, 3) relative to one another. The positioning device (5) comprises a domain pattern (6) arranged on a surface (19) of a first bearing ring (2) of the bearing rings (2, 3) and distributed around a circumference of said first bearing ring, domains (10, 11) of the domain pattern comprising domain heights having discrete values. The positioning device (5) further comprises at least one eddy current sensor (7, 8) arranged on a second bearing ring (3) of the bearing rings (2, 3) to scan the domain patterns (6), and an evaluation device (9) configured to assign an associated angular position signal describing an absolute angular position of the first bearing ring (2) a