A freewheel mechanism containing an external raceway, rolls, wedges, characterized in that, it contains the external raceway (1) and an external gear (2) that are rigidly connected with each other, and it contains satellite gears (5) and rolls (4) that are rigidly connected with each other, wherein the satellite gears (5) mate with the external gear (2), wherein the satellite gears (5) are mounted on satellite axles (7), wherein the satellite axles (7) are mounted in a yoke (8), wherein the freewheel mechanism contains wedges (9a) of type A, which are placed between the rolls (4) and the external raceway (1).

A freewheel mechanism containing an external raceway, rolls, wedges, characterized in that, it contains the external raceway (1) and an external gear (2) that are rigidly connected with each other, and it contains satellite gears (5) and rolls (4) that are rigidly connected with each other, wherein the satellite gears (5) mate with the external gear (2), wherein the satellite gears (5) are mounted on satellite axles (7), wherein the satellite axles (7) are mounted in a yoke (8), wherein the freewheel mechanism contains wedges (9a) of type A, which are placed between the rolls (4) and the external raceway (1).

A gear apparatus for controlling movement of an output by an input coupled to a power source. The apparatus an input member coupled to the input, an output member coupled to the output and the input member so that movement of the input member causes movement of the output, a selectably releasable member coupled to the input member and the output member, wherein the selectably releasable member remains in a fixed position while the input member and the output member move, and a releasable member brake mechanism coupled to the selectably releasable member, wherein the releasable member brake mechanism is arranged to prevent movement of the selectably releasable member when the input member and the output member move and to allow back driving of the selectably releasable member.

A backdrive braking element is provided for preventing backdrive of a shaft. It includes a poly-lobed locking mechanism including an unlock shaft that has a polygon shaped inside profile and is coupled to a poly lock drive and brake assembly. The poly lock drive and brake assembly includes a plurality of poly lock drive and brake segments and is contained within the interior cavity of a housing.

An asymmetric bearing device automatically decreases, without the need for manual adjustment, an amount of friction exerted against rotation of a drum or other mechanism upon reversal of the direction of rotation of the drum.

An asymmetric bearing device automatically decreases, without the need for manual adjustment, an amount of friction exerted against rotation of a drum or other mechanism upon reversal of the direction of rotation of the drum.

A band-sawing check valve device is provided. The band-sawing check valve device includes a main wheel, a transmission assembly, a driving assembly and a check valve assembly. The transmission assembly is linked to a transmission shaft. The transmission shaft is disposed to the transmission assembly, the driving assembly drives the transmission shaft to drive the main wheel, and the check valve assembly is used to limit the rotation of the main wheel in a single direction.

A band-sawing check valve device is provided. The band-sawing check valve device includes a main wheel, a transmission assembly, a driving assembly and a check valve assembly. The transmission assembly is linked to a transmission shaft. The transmission shaft is disposed to the transmission assembly, the driving assembly drives the transmission shaft to drive the main wheel, and the check valve assembly is used to limit the rotation of the main wheel in a single direction.

An object of the present invention is to provide a one-way clutch capable of preventing wear on radially inner engagement surfaces and radially outer engagement surfaces of cams in periods of high-speed freewheeling. The one-way clutch includes an inner race (110) and an outer race (150), a plurality of cams (140) provided between the inner race (110) and the outer race (150), and side plates (120, 130) provided to at least one of the inner race (110) and outer race (150) and positioned on both sides in an axial direction of the cams (140). The plurality of cams (140) are each configured to receive a predetermined centrifugal force to turn in an engaging direction in which the cams engage the inner race (110) and outer race (150) when the inner race (110) and outer race (150) rotate together in the same direction.

An object of the present invention is to provide a one-way clutch capable of preventing wear on radially inner engagement surfaces and radially outer engagement surfaces of cams in periods of high-speed freewheeling. The one-way clutch includes an inner race (110) and an outer race (150), a plurality of cams (140) provided between the inner race (110) and the outer race (150), and side plates (120, 130) provided to at least one of the inner race (110) and outer race (150) and positioned on both sides in an axial direction of the cams (140). The plurality of cams (140) are each configured to receive a predetermined centrifugal force to turn in an engaging direction in which the cams engage the inner race (110) and outer race (150) when the inner race (110) and outer race (150) rotate together in the same direction.