75results about How to "Improve radial load capacity" patented technology

The invention relates to a radial rolling bearing, in particular single-row spherical-roller bearing, which is composed substantially of an outer bearing ring (2) and an inner bearing ring (3) and of a plurality of spherical rollers (4), which spherical rollers (4) are arranged between said bearing rings (2,3), which spherical rollers (4) have in each case two side faces (5,6) which are flattened symmetrically from a spherical basic shape and are arranged parallel to one another, and which spherical rollers (4) are retained with uniform spacing to one another in the peripheral direction by means of a bearing cage. Here, the spherical rollers (4) have a width (bk) between their side faces (5,6) of approximately 70% of the diameter (dk) of their spherical basic shape, and roll with their running faces (7) in two groove-shaped raceways (10,11) which are formed in the inner side (8) of the outer bearing ring (2) and in the outer side (9) of the inner bearing ring (3). According to the invention, at least one of the axial rims (12, 13, 14, 15) which delimit the groove-shaped raceways (10,11) in the bearing rings (2,3) is designed to be reduced in radial height such that the radial bearing (1) can, by means of the increased spacing (aL2) of said rim (12, 13, 14, 15) to the radially opposite rim (12, 13, 14, 15), be equipped with an increased number of spherical rollers (4) in an axial assembly process.

The invention provides a coupler for a shaft suspending type installing direct drive motor. The coupler comprises an axle side connecting disc fixed coaxially with an axle, and a motor side connectingdisc fixed coaxially with a motor rotor shaft. The coupler is characterized by further comprising an elastic supporting rotating assembly. The elastic supporting rotating assembly is connected between the axle side connecting disc and the motor side connecting disc, thus the axle side connecting disc and the motor side connecting disc are coaxially connected in a rotating manner, the elastic supporting rotating assembly bears the motor weight in the radial direction, and the axle side connecting disc and the motor side connecting disc are elastically connected in the peripheral direction. According to the coupler, while the requirement for large radial load is met, the better vibration reducing and buffering effect can be obtained, the failure risk is reduced, the service life of a metalrubber part is prolonged, the use reliability of the coupler is improved, centering connection between the axle side connecting disc and the motor side connecting disc can be achieved easily, the installing reliability and convenience of the coupler are improved, the installing process is convenient and easy, and overhauling and replacing are facilitated. The invention further provides a rigiditydesign method of the coupler for the shaft suspending type installing direct drive motor.

The invention belongs to the technical field of bearings, and provides a double-lip sealing type four-point contact ball turntable bearing. The double-lip sealing type four-point contact ball turntable bearing comprises an inner ring (4), an outer ring (1) and a steel ball (2), wherein an upper sealing ring (3) and a lower sealing ring (7) have double-lip sealed annular structures; two lips which extend towards the inner side or outer side and are used for realizing sealing functions are formed in bodies (9) of the upper sealing ring (3) and the lower sealing ring (7); the bodies (9) of the upper sealing ring (3) and the lower sealing ring (7) are positioned in sealing slots of the outer ring (1) or the inner ring (4); the lip I (10) is hasped on the end face of the inner ring (4) or the outer ring (1); and the lip II (11) is hasped on the outer diameter surface of the inner ring or the inner diameter surface of the outer ring. The double-lip sealing type four-point contact ball turntable bearing has high dustproof, waterproof and ageproof functions, can prevent internal lubrication fat from leaking and has the characteristics of good sealing effect, compact structure and convenience in mounting, maintenance and use.

A cylinder liner with a plurality of protrusions on its outside surface and the manufacturing method thereof are disclosed. The protrusions are Ω-shaped, P-shaped or taper-shaped, and the Ω-shaped, P-shaped and taper-shaped protrusions are accounted for 50-99.5%, 0.5-30% and 0-20% of the total number of protrusions, respectively. The density of the protrusions on the outside surface of the cylinder liner is 15-65 per square centimeter. The outer surface of the protrusions of the cylinder liner is curved, and has a large contact area and a concave which can be filled by an aluminum sheath to improve the radial bearing capacity, so as to effectively improve the bite force between the cylinder liner and the outside aluminum sheath and prevent the cylinder liner from breaking away from the cylinder body.

The invention discloses a plastic covered belt reinforced hollow-wall wound pipe and a manufacturing method thereof. The plastic covered belt reinforced hollow-wall wound pipe comprises a square pipe, molten glue and a plastic covered belt. The plastic covered belt is longitudinal placed on one side face or two sides of the square pipe to form the plastic covered belt reinforced square pipe. The plastic covered belt reinforced square pipe is arranged on a roller mold to be spirally wound, the molten glue in a molten state is extruded to bond gaps, and therefore the plastic covered belt reinforced hollow-wall wound pipe is formed. The manufacturing method of the plastic covered belt reinforced hollow-wall wound pipe mainly comprises the steps of extruding shaping of the square pipe, attaching of the plastic covered reinforcement belt and winding forming. The plastic covered belt reinforced hollow-wall wound pipe is simple in structure, low in weight per meter and simple in production process, and has the characteristics of saving energy and being environmentally friendly.