A speed measuring device for a wheel hub assembly equipped with a rolling bearing. The measuring device having an encoder wheel mounted on a rotating ring of the bearing, a mechanical support disposed between the encoder wheel and the ring to cause the encoder wheel and the ring to be angularly fixed to one another, and a mechanical lock for axially locking the encoder wheel in a seat formed by the mechanical lock together with the mechanical support. The encoder wheel is equipped with a base structure made of plastic material mounted in a seat.

A sensor unit includes sensor constituent parts of various sensor devices and at least one printed circuit board that has voltage supply and signal transmission components for the sensor constituent parts and to which the sensor constituent parts are connected. The sensor unit has an annular base body that receives the sensor constituent parts and the at least one printed circuit board. A gear having such a sensor unit is also provided. A drive train having such a gear, a wind power installation having such a drive train, and an industrial application having such a gear are provided.

The bearing provides a first ring and a second ring centered on an axis, each of the first and second rings being provided with an outer cylindrical surface, with an inner cylindrical surface, and with lateral faces that axially delimit the outer and inner cylindrical surface. One of the inner and outer cylindrical surfaces and/or one of the lateral faces of the first ring includes a textured area provided with a groove extending circumferentially and with two protrusions disposed one on each side of the groove and extending along the groove.

Detection device for a wheel hub assembly provided with a rolling bearing, the detection device having a phonic wheel made of magnetized material and mounted on a rotating ring of the bearing, a shaped support element angularly constrained to the rotating ring of the bearing arranged directly between the phonic wheel and the rotating ring so as to angularly lock together the phonic ring and the rotating ring, and a sensor facing the phonic wheel; a protection device being integral with the rotating ring of the bearing so as to protect simultaneously both the phonic wheel and the sensor from external contaminants.

A sensor bearing unit includes a bearing having a first ring and a second ring centered on an axis, an impulse ring secured to the first ring and a sensor device secured to the second ring for detecting rotational parameters of the impulse ring. The impulse ring is secured into a groove formed on a cylindrical surface of the first ring which is located radially on a side of the first ring opposite the second ring.

A sensor bearing unit includes a bearing having a first ring and a second ring, and an impulse ring provided with a target holder, with a target mounted on the target holder, and with a sleeve secured to the first ring, the target holder being axially mounted between a lateral face of the first ring and the sleeve. The first ring having at least one anti-rotation feature cooperating with at least one complementary anti-rotation feature formed on the impulse ring so as to prevent angular movement of the impulse ring relative to the first ring.

A speed measuring device for a wheel hub assembly equipped with a rolling bearing. The measuring device having an encoder wheel mounted on a rotating ring of the bearing, a mechanical support disposed between the encoder wheel and the ring to cause the encoder wheel and the ring to be angularly fixed to one another, and a mechanical lock for axially locking the encoder wheel in a seat formed by the mechanical lock together with the mechanical support. The encoder wheel is equipped with a base structure made of plastic material mounted in a seat.

Detection device for a wheel hub assembly provided with a rolling bearing, the detection device having a phonic wheel made of magnetized material and mounted on a rotating ring of the bearing, a shaped support element angularly constrained to the rotating ring of the bearing arranged directly between the phonic wheel and the rotating ring so as to angularly lock together the phonic ring and the rotating ring, and a sensor facing the phonic wheel; a protection device being integral with the rotating ring of the bearing so as to protect simultaneously both the phonic wheel and the sensor from external contaminants.

A wheel hub bearing for motor vehicles including a rotatable hub provided with a flange for the engagement of the hub to a wheel of a vehicle and provided with a radially outer free portion and a bearing unit provided with a radially outer ring for the engagement of the wheel hub bearing to a knuckle of the vehicle and a radially inner rotatable ring angularly connected to the hub. Furthermore, the wheel hub bearing has a device for detecting a vehicle parameter and provided with an encoder and a sensor in communication with the encoder. The encoder is ridgidly coupled to the radially outer free portion of the flange to jointly rotate with the hub.

A rotation detecting device includes a member to be detected, and a sensor section arranged opposite the member to be detected. The sensor section includes two magnetic sensors, each including a detecting portion to detect a magnetic field produced from the member to be detected, with the detecting portions of the sensors being arranged in such a manner as to overlap each other in an opposite arrangement direction of the sensor section and the member to be detected, and a housing provided to cover the sensors together, and including an opposite surface to the member to be detected. The detecting portion of one of the sensors, which is arranged in a side of the sensor section close to the member to be detected, is arranged in such a manner as to be inclined with respect to the opposite surface of the housing.