摘要:
The invention relates to a protective cap for a wheel-bearing unit which is fully sealed in relation to the surroundings, which unit has a central blind hole which is visible on the vehicle, at least when the wheel has not been installed, and can be covered from view by means of the protective cap. The protective cap is retained in the blind hole in a force-fitting and/or form-fitting manner, and such that it can be removed, and the protective cap has, on its periphery, a discharge opening for water or the like which passes into the blind hole. The protective cap preferably has noses, which butt against the inner wall of the blind hole and are biased radially outwards by a spring lock washer, and an at least partially conical end surface.
摘要:
A bicycle hub sealing structure comprises: axle shaft, nuts, hub enclosure, a sleeve and a ratchet wheel, wherein, the hub enclosure rear end and the sleeve front end are attached to the axle shaft respectively through the first ball bearing and the second ball bearing, meanwhile the second ball bearing is combined with the sleeve through the balls, the nuts are positioned on the front and rear ends of the axle shaft, the rear end of the ratchet wheel is located inside the hub enclosure, and is combined with the sleeve through the balls, the front end of the hub enclosure has a housing cavity, the rear end of the sleeve is extended into the bulge loop inside the housing cavity, a sleeve oil seal is provided between the bulge loop outside wall and the housing cavity inside wall, and a leakage-proof gasket is provided between the bulge loop inside wall and the ratchet wheel. The sleeve oil seal and the leakage-proof gasket are of a simple structure to provide double sealing for the ratchet wheel, and to prevent foreign objects to enter the hub enclosure. The bent portion and the seal are flexible and will not affect the relative rotation of the various cooperating components inside the hub enclosure, ensuring smooth riding of the bicycle.
摘要:
The invention relates to a roller, e.g. a guide roll (1), for transport devices, e.g. shopping trolleys (8) or the like, for use on a conveyor (T) with a longitudinally grooved surface (16), with a running wheel (2) with at least one groove (15) fitted in a fork (3), in which the side surface of the running wheel has a cover plate (20) as a thread-guard and a supporting foot (23), and, to improve the design, proposes that the supporting foot (23) be secured via a non-rotating cover plate (20).
摘要:
A running wheel structure for a trolley or a similar transport vehicle comprises a wheel support (2) with two fork arms designed to be mounted beneath the trolley or cart and between which a wheel (3) is mounted having on either side an annular indentation (14) between a peripheral rim portion (11) constituting externally the running surface (12) of the wheel and a central hub portion (10) with a continuous bore for the wheel shaft (4). On either side of the wheel the hub portion (10) is covered by a cap (7) designed as a comparatively narrow cupular shred catcher with a side wall (33) substantially equiform with and positioned at a short distance from the hub portion (10) and a bottom face (32) which is kept at a short distance from an end face (15) of the hub portion by a tube (17) inserted in the bore of the hub portion (10). The side wall (33) of the cap (30) terminates at a short distance from the bottom (13) of the indentation (14), thereby forming a comparatively narrow sluicing duct (34) between the cap (30) and the end and outer surfaces of the hub portion (10).
摘要:
$7 The castor-wheels concerned are applied "up-side- down" in an apron (air-field)-conveyer whereover havy crates can be transported (see Figure 2). Practice has learned that the bearing arrangements failed mainly because of insufficient sealing due to which dirt, water and mud can penetrate into the bearings. According to the improved castor-wheel (Figure 3) all bearing arrangements comprise standard (for life lubricated and sealed) ball bearings (44, 45 and 32-35) whereby the support part (31, 36) at the upper side and at the bottom is closed by special shaped covers (47 and 38 resp.).
摘要:
A wireless sensor for a wheel end assembly of a heavy-duty vehicle is provided. The wheel end assembly includes a wheel hub and a hub cap mounted on the wheel hub. The sensor includes mounting means disposed in the hub cap. Sensing means are mounted on the mounting means to sense at least one condition of the vehicle. A processor is mounted on the mounting means and is electrically connected to the sensing means to process data from the sensing means. Communication means are mounted on the mounting means and are electrically connected to the processor to communicate the processed data to a user. An electrical energy storage device is mounted on the mounting means and is electrically connected to the sensing means, the processor and the communication means, enabling the sensor to be independent from the vehicle power supply. The sensor also accommodates components of a tire inflation system.
摘要:
Hub-bearing assembly (10) comprising: - a rolling bearing provided with an outer ring (11), at least an inner ring (16, 17), at least a row (14, 15) of rolling bodies (15') and a sealing device (21) arranged at one end of the assembly, - a housing (12) having an almost annular cylindrical shape, the housing at the one end forming a radial flange (12'), containing the rolling bearing and being in direct contact with the bearing outer ring (11), the housing (12) being made of plastic material co-molded on the outer ring (11) of the rolling bearing, - a closing cap (18), assembled on the housing (12) at the opposite end with respect to the end, where the sealing device (21) is arranged and the housing forms the flange (12'), the cap being cup shaped, - the assembly (10) further comprising axial retention means (111, 112, 121, 122, 200, 400), which are located along an external surface (110) of the outer ring (11), said retention means being opposed to the axial sliding of the outer ring (11) with respect to the housing (12), wherein said axial retention means comprise a retention ring (200, 400), which is assembled with radial interference on the bearing outer ring (11), said retention ring (200, 400) presenting a section, substantially "L" shaped, having a substantially radially extended wing (210, 300'), which provides the ring with mechanical resistance and which separates the outer ring (11) from the sealing device (21).