A pneumatic suspension system is provided. The pneumatic suspension system includes a pneumatic suspension component configured to be positioned within a fork tube in a front-end motorcycle suspension system. The pneumatic suspension component defines a single body housing having a pneumatic cylinder therein.

A lateral support element (304) include an element wall with a first surface facing away from an associated flexible wall (264) and a second surface facing toward the associated flexible wall. The lateral support element is disposed along the associated flexible wall such that an interface (334) is formed between an outer surface of the associated flexible wall and the second surface of the lateral support element. The interface is operative to generate a lateral spring-rate profile in an associated gas spring assembly that varies according to lateral displacement of the associated flexible wall and the lateral support element relative to one another. The interface can include a quantity of friction-reducing material and/or can be at least partially formed by a cross-sectional profile of the lateral support element that includes a convex profile segment. Gas spring assemblies and methods of assembly are also included.

A suspension system for use with a motorcycle includes a single body having two pneumatic cylinders in axial alignment therein. The suspension system may be sold in a kit, and may be installed in an existing front wheel fork.

Methods and apparatus for lubricating suspension seals by pumping fluid to the seals using a compression or rebound action of a suspension component.

A lateral support element (304) include an element wall with a first surface facing away from an associated flexible wall (264) and a second surface facing toward the associated flexible wall. The lateral support element is disposed along the associated flexible wall such that an interface (334) is formed between an outer surface of the associated flexible wall and the second surface of the lateral support element. The interface is operative to generate a lateral spring-rate profile in an associated gas spring assembly that varies according to lateral displacement of the associated flexible wall and the lateral support element relative to one another. The interface can include a quantity of friction-reducing material and/or can be at least partially formed by a cross-sectional profile of the lateral support element that includes a convex profile segment. Gas spring assemblies and methods of assembly are also included.

Methods and apparatus for lubricating suspension seals by pumping fluid to the seals using a compression or rebound action of a suspension component.

The arrangement comprises a fluid bearing comprising a first fluid bearing element located in a bearing housing and a piston located in a pump housing. The bearing housing comprises a bearing housing opening. The pump housing comprises a pump housing opening. The first fluid bearing element is connected to the piston by means of a connection means extending from the first fluid bearing element through the bearing housing opening to the piston through the pump housing opening. The piston is arranged to reciprocate in the pump housing. The pump housing is connected to a fluid reservoir by means of a first inlet. The bearing housing comprises a first outlet for allowing fluid to exit the bearing housing. The arrangement further comprises a fluid transport means fluidly connecting the pump housing and the bearing housing.

An internal damping valve for shock absorbers, comprising a main valve member, a valve housing, a valve sleeve and a main valve seat, the valve sleeve is connected with the valve housing, the main valve member is arranged in the valve sleeve, and the main valve seat is arranged at an end of the main valve member; the main valve member comprises a first channel, a second channel and a third channel; The third channel runs through the main spool, allowing fluid to enter the third channel from both directions. The fluid then passes through the third channel into a second oil flow path, subsequently flowing to the feedback chamber of the main spool. This reduces the eccentricity of the main spool caused by radial fluid entering unidirectionally, helping to maintain the relative balance of the main spool and improving the responsiveness and operational stability of the damping valve.

Provided are a method for manufacturing a sliding member, a method for manufacturing a shock absorber, a sliding member, a shock absorber, and a method for adjusting ride comfort capable of improving retention of lubricating oil between sliding members while increasing operability and capable of sustaining smooth sliding of the sliding members. A method for manufacturing a sliding member that performs a sliding operation in a presence of a lubricating oil, the method having a first polishing step of polishing a surface of the sliding member in a circumferential direction of the sliding member by using a polishing tape having a first whetstone to form a plurality of grooves disposed around the sliding member in the circumferential direction; and a second polishing step of polishing the sliding member after the first polishing step to form a surface cross section in a longitudinal direction of the sliding member in a plateau shape.

A sealing device for hydraulic equipment according to the invention includes an outer member having an annular shape, an inner member inserted into the outer member, and a seal ring housed in an annular groove disposed in the outer circumference of the inner member and abutting on the outer member to prevent a liquid from passing through a gap between the outer member and the inner member. The annular groove of the inner member has a bottom portion including a recess for restraining axial displacement of the seal ring relative to the annular groove.