A method for producing a motor vehicle rim made of aluminum or an aluminum alloy for a motor vehicle wheel. The motor vehicle rim has a rim base delimited on opposite sides by an outer horn and an inner horn, a hub with a central recess and a hole circle and a rim center connecting the rim base and the hub to one another and acting eccentrically on the rim base in longitudinal section. The motor vehicle rim is produced in one piece and continuously in a casting mold by vacuum die casting of a casting material, wherein the motor vehicle rim has a small wall thickness of at most 15 mm at least in some regions and/or a curvature with a small radius of curvature of at most 4 mm.

The present invention discloses an automatic carving device for a wheel, mainly consisting of a rack, a chassis, a lifting cylinder, brackets A, bearing blocks, linear bearings, mounting plates, guide shafts, a lifting shaft, a servo motor A, a synchronous pulley A, a connection plate, a synchronous belt, a synchronous pulley B, a pedestal, a connection shaft A, a servo motor B, a shaft sleeve A, a lower end cover, a connection shaft B, a shaft sleeve B, and an oil cylinder. The automatic carving device for the wheel provided by the present invention can meet the requirement of automatically carving characters on the wheel, meanwhile has the characteristics of simple structure, convenience for manufacturing, stable performance and high precision that can meet the machining requirement, and can also meet the requirement of automatic production.

The present invention relates to an in-wheel motor. The in-wheel motor according to an embodiment of the present invention includes: a circular rim to which a tire is coupled by being wrapped around an outer ring thereof and a shaft is connected by passing through a center thereof; a motor assembly which is disposed in an inner portion of the rim and includes a stator connected to the shaft and a rotor disposed to be wrapped around the stator and configured to rotate; a cover coupled to cover one open side surface of the rim and configured to seal the inner portion of the rim; and a lead-out wire entry/exit portion waterproof structure configured to seal an entry/exit portion for a lead-out wire connected to supply power from outside of the in-wheel motor to the inner portion of the rim via a hollow portion of the shaft, wherein the lead-out wire entry/exit portion waterproof structure includes an elastic stopper, to which the lead-out wire is connected to pass through a center thereof and which is configured to be elastically contracted after being inserted into the hollow portion of the shaft in an axial direction and seal between the hollow portion of the shaft and the lead-out wire, and a stopper fixing body fastened to the shaft and configured to press the elastic stopper in the axial direction so that the elastic stopper is inserted and fixed inside the hollow portion of the shaft.

The disclosure refers to a hub for a bicycle running wheel, a bicycle drive system and a bicycle. In an embodiment a hub for a bicycle running wheel includes a hub body and a receiving area configured to receive a force transmission means, wherein the hub body and the receiving area are a single part or are firmly connected together.

A method for producing a motor vehicle rim made of an aluminum alloy for a wheel of a motor vehicle, the motor vehicle rim having a rim base limited on opposite sides by an outer horn and an inner horn, a hub with a central recess and a hole circle, and a rim center connecting the rim base and the hub to one another. The motor vehicle rim is produced in one piece and continuously in a casting mold by die casting of a casting material, the casting material being the aluminum alloy.

The invention relates to a caster for movable objects, and more particularly a bed caster, and at least comprises: a running wheel; a fork receiving said running wheel; a guide tube which is designed to be swivelable relative to the fork via at least one bearing; locking means provided on the fork side; and a braking system which can be brought into operative connection with the running wheel and is designed to block rotation of the wheels, characterised in that the braking system includes a brake shoe, a brake spindle, a guide pin and a cup-shaped guide element, wherein the brake spindle has groove-shaped guides, the cup-shaped guide element is provided with projections, and the projections can be brought into operative connection with the guides of the brake spindle in order to form the anti-rotation means.

A low impact turf wheel for significantly reducing the adverse effects of frequent travel over turf by a lawn mower includes a wheel rim having an inner and outer surface, a hub arranged within the wheel rim, wherein the hub includes a central portion for mounting the turf wheel, and a plurality of spaced apart stems extending perpendicularly outward from the outer surface of the wheel rim. The stem includes a stem surface extending perpendicularly to the stem and a lug extending radially outward from the stem surface. The lug includes a lug face parallel to the stem surface, wherein the combination of the stem surface and lug face provide a ground contacting tread.

A reinforced prepreg which is applied to a wear-resistant layer structure of a braking track is provided. The reinforced prepreg includes a fiber fabric and a mixture mixed with the fiber fabric. The mixture includes a resin and a plurality of needle-shaped crystals having microscale or nanoscale sizes mixed with the resin.

Disclosed are a method of configuring an additional air chamber member on an outer circumferential surface of a well portion of the vehicle wheel as a Helmholtz resonator in a tire air chamber, comprising: preparing a plurality of additional air chamber members for each size of the vehicle wheel, each additional air chamber member corresponding to a different resonance frequency; and selecting one of the additional air chamber members with the corresponding resonance frequency from the additional air chamber members in accordance with a size of a tire used in combination with the vehicle wheel and an additional air chamber member information system using the method.

A nipple for spoked wheels includes a head and a rod which are coaxial and through which a through-hole extends, a manoeuvring key in the head and an insert of plastics material which is inserted in the hole in order to engage in a screwing manner with friction with a threaded end of a spoke. The hole comprises a threaded portion which extends in the rod and a portion with an increased diameter which constitutes the seat for receiving the insert, the insert being formed with a tubular sleeve inserted in the seat at the side of the head and being blocked there by means of interference or adhesive bonding.