Abstract: A belt tensioner, comprising a first and second tensioning arm supported on a generator housing, a first and second tensioning roller attached to the first and second tensioning arms and configured to apply a pre-tensioning force to an auxiliary unit belt drive, and a bow spring clamped between the first and second tensioning arms in axial overlap with the tensioning rollers and configured to produce the pre-tensioning force.

Abstract: A manufacturing apparatus for producing a curved contour on an end face of a roll includes a grinding device and a holding device, linearly movable relative to the grinding device. The grinding device is for grinding the curved contour on the end face. The holding device is for holding the roll between the holding device and the grinding device. A method for producing the curved contour on the end face using the manufacturing apparatus is also disclosed. The method includes driving the holding device to move in a linear fashion relative to the grinding device.

Abstract: The invention relates to a belt or chain tensioner (1) for a belt or chain drive of an internal combustion engine, having a base unit (2), an annular tensioning arm (3) which is mounted so as to be rotatable relative to the base unit (2) about an axis of rotation and on which a tensioning roll (4) prepared for pre-tensioning a section of an endless belt or chain is arranged, and two interconnected bearing parts (5, 6), by which the tensioning arm (3) is pivotally mounted on the base unit (2), and the bearing parts (5, 6) are designed as identical parts.

Abstract: A belt tensioner (1) for a generator belt drive of an internal combustion engine is provided. The belt tensioner includes a tensioning arm (5) with a tensioning roller (7) mounted thereon, and a tensioning spring which acts on the tensioning arm and is intended for pretensioning the belt (11) is designed for mounting onto the generator (2) and, in the mounted state of the belt drive, engages annularly around the belt pulley (6) of the generator and encompasses the belt in a plane which is spaced apart from the plane of the belt and runs on the far side of the belt plane with respect to the generator. The belt tensioner has an open ring-shaped construction, and therefore, in the mounted state of the belt tensioner on the generator, the belt can be mounted axially through the ring opening (9, 10) in the belt tensioner onto the belt pulley of the generator.

Abstract: A belt tensioner, comprising a first and second tensioning arm supported on a generator housing, a first and second tensioning roller attached to the first and second tensioning arms and configured to apply a pre-tensioning force to an auxiliary unit belt drive, and a bow spring clamped between the first and second tensioning arms in axial overlap with the tensioning rollers and configured to produce the pre-tensioning force.

Abstract: The invention relates to a belt or chain tensioner (1) for a belt or chain drive of an internal combustion engine, having a base unit (2), an annular tensioning arm (3) which is mounted so as to be rotatable relative to the base unit (2) about an axis of rotation and on which a tensioning roll (4) prepared for pre-tensioning a section of an endless belt or chain is arranged, and two interconnected bearing parts (5, 6), by which the tensioning arm (3) is pivotally mounted on the base unit (2), and the bearing parts (5, 6) are designed as identical parts.

Abstract: A belt tensioner (1) for a generator belt drive of an internal combustion engine is provided. The belt tensioner includes a tensioning arm (5) with a tensioning roller (7) mounted thereon, and a tensioning spring which acts on the tensioning arm and is intended for pretensioning the belt (11) is designed for mounting onto the generator (2) and, in the mounted state of the belt drive, engages annularly around the belt pulley (6) of the generator and encompasses the belt in a plane which is spaced apart from the plane of the belt and runs on the far side of the belt plane with respect to the generator. The belt tensioner has an open ring-shaped construction, and therefore, in the mounted state of the belt tensioner on the generator, the belt can be mounted axially through the ring opening (9, 10) in the belt tensioner onto the belt pulley of the generator.

Abstract: A belt tensioner for a generator belt drive of an internal combustion engine, is provided having: —an annular housing part which is secured on the generator housing so as to enclose the generator shaft, —an annular tensioning part which is mounted on the housing part in a pivotal manner about the generator shaft, —a single tension roller which is mounted on the tensioning part and pretensions the belt, —and a spring which is clamped between the housing part and the tensioning part and which applies a torque to the tensioning part in order to generate the belt tension. The spring should be a bow spring which extends parallel to the belt plane (?) and circumferentially and completely outside of a pivoting range of the tension roller.

Abstract: A belt tensioner for a generator belt drive of an internal combustion engine, is provided having: —an annular housing part which is secured on the generator housing so as to enclose the generator shaft, —an annular tensioning part which is mounted on the housing part in a pivotal manner about the generator shaft, —a single tension roller which is mounted on the tensioning part and pretensions the belt, —and a spring which is clamped between the housing part and the tensioning part and which applies a torque to the tensioning part in order to generate the belt tension. The spring should be a bow spring which extends parallel to the belt plane (?) and circumferentially and completely outside of a pivoting range of the tension roller.

Abstract: A bearing ring comprises a raceway for a rolling member as well as at least one lateral rim for axially guiding the rolling member. To produce the bearing ring a notch is introduced into a running surface of the bearing ring which faces the rolling member. A final contour of the bearing ring is created by means of a hard turning process.

Abstract: A bearing ring comprises a raceway for a rolling member as well as at least one lateral rim for axially guiding the rolling member. To produce the bearing ring a notch is introduced into a running surface of the bearing ring which faces the rolling member. A final contour of the bearing ring is created by means of a hard turning process.

Abstract: A method for producing a bearing ring for a roiling bearing, the bearing ring comprising a raceway for a rolling member as well as at least one lateral rim for axially guiding the rolling member. In one step of said method, a notch is introduced into a running surface of the bearing ring which faces the rolling member. The final contour of the bearing ring is created by means of a hard turning process.

Abstract: The invention relates to a method for producing a bearing ring for a rolling bearing, said bearing ring comprising a raceway for a rolling member as well as at least one lateral rim for axially guiding the rolling member. In one step of said method, a notch is introduced into a running surface of the bearing ring which faces the rolling member. According to the invention, the final contour of the bearing ring is created by means of a hard turning process.