Abstract: The invention relates to a friction ring (1) for a synchronizing unit (2) of a variable ratio gear transmission. The friction ring (1) comprises a conical friction body having an inner friction surface and an outer installation surface which each bound the friction ring body in a radial peripheral direction extending perpendicular to an axial friction ring axis (4). The friction ring body comprises a projection (9) for restraining a movement of the friction ring (1) relative to a synchronizer ring (7) substantially along the friction axis in operation in the synchronizing unit (2).

Abstract: The invention relates to a friction ring for a synchronizer unit (2) of a gear changing transmission, which friction ring includes a conical friction ring body (3) having an inner friction surface (301) and an outer installation surface (302) preferably configured as a further friction surface which friction surface (301) and installation surface (302) respectively bound the friction ring body (3) in a radial circumferential direction (U) extending perpendicular to a axial friction ring axis (4) in which the inner friction surface (301) conically extends along the friction ring axis (4) at a pre-determinable friction angle (?1) and the outer installation surface (302) also conically extends along the friction ring axis (4) at a pre-determinable installation angle (?2) respectively. In accordance with the invention the friction angle (?1) is different from the installation angle (?2). Furthermore, the invention relates to a synchronizer unit (2), as well as to a gear changing transmission for a vehicle.

Abstract: The invention relates to a friction ring (1) for a synchronizing unit (2) of a variable ratio gear transmission. The friction ring (1) comprises a conical friction body having an inner friction surface and an outer installation surface which each bound the friction ring body in a radial peripheral direction extending perpendicular to an axial friction ring axis (4). The friction ring body comprises a projection (9) for restraining a movement of the friction ring (1) relative to a synchronizer ring (7) substantially along the friction axis in operation in the synchronizing unit (2).

Abstract: The invention relates to a friction ring for a synchronizer unit (2) of a gear changing transmission, which friction ring includes a conical friction ring body (3) having an inner friction surface (301) and an outer installation surface (302) preferably configured as a further friction surface which friction surface (301) and installation surface (302) respectively bound the friction ring body (3) in a radial circumferential direction (U) extending perpendicular to a axial friction ring axis (4) in which the inner friction surface (301) conically extends along the friction ring axis (4) at a pre-determinable friction angle (?1) and the outer installation surface (302) also conically extends along the friction ring axis (4) at a pre-determinable installation angle (?2) respectively. In accordance with the invention the friction angle (?1) is different from the installation angle (?2). Furthermore, the invention relates to a synchronizer unit (2), as well as to a gear changing transmission for a vehicle.

Abstract: A synchronizer clutch assembly includes a clutch hub which is axially movably mounted on a shaft, a gear which is axially spaced from the hub and which is journally mounted on the shaft and rotatable independent thereof, one of the hub or the gear having a conical friction surface formed thereon, and a synchronizer ring positioned between the hub and the gear. The synchronizer ring is coupled to the hub or the gear for rotation therewith and has a complementary conical friction surface formed thereon which is engageable with the conical friction surface on the hub or the gear. The synchronizer ring is composed of a plurality of separate arcuate segments arranged in a ring, which are movable between a first expanded configuration and a second, contracted configuration.

Abstract: A friction material has a plurality of connected sections and a plurality of oil localization slots. Each connected section is defined by adjacent oil localization slots in the friction material. The oil localization slot has opposing sides that define a reservoir which retains fluid in the oil localization slot when the friction material is formed into a desired shape on an end use product.

Abstract: A synchronizer clutch assembly for a transmission comprising a synchronizer hub carried by a torque delivery shaft and including a cone clutch member carried by a gear forming a part of the transmission gearing and a synchronizer blocking ring. A C-shaped spring member is positioned in the inner circumference of the rim portion of the clutch hub and has a plurality of lugs which extend through openings in the hub. The shiftable clutch sleeve has ramped ridges engageable with the lugs on the spring member and compress the lugs radially inwardly. The blocker ring cone clutch frictionally engages the cone clutch of the gear upon movement of the clutch sleeve toward an engagement position until the rotary motion of the gear is brought into synchronism with the rotary motion of the shaft.

Abstract: A synchronizer clutch assembly for a manual transmission comprising a synchronizer hub carried by a torque delivery shaft and including a cone clutch member carried by a gear forming a part of the transmission gearing and a synchronizer blocker ring adapted to be made of forged steel, the synchronizer assembly including a shiftable clutch sleeve that is engageable with at least one spring element secured to the synchronizer blocker ring whereby the blocker ring cone clutch frictionally engages the cone clutch of the gear upon movement of the sleeve toward an engagement position until the rotary motion of the gear is brought into synchronism with the rotary motion of the shaft.