Abstract:
A friction applying apparatus and a linear guide apparatus having the same, according to the present invention can uniformly contact allover contacting faces of sliding members to the contacted members so as to reduce abrasion in the sliding members and the contacted members, and may maintain appropriate frictional force and precision. In the friction applying apparatus forcing the sliding members moving along guide rails for generating friction, the sliding member is made of a material having elastic modulus being 5000 MPa or less and Vickers hardness being 400 or more.
Abstract:
In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide-rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider; and a pair of first cylindrical members inserted to the respective first recesses.
Abstract:
A ring-like lubricant supply device 6 is fitted into a recess 4 of a nut member 2. The lubricant supply device 6 contains a lubricant and is formed in an outer peripheral surface with notches 7. Tubular members 8 each having an outer diameter larger than the diameter of the notch 7 are inserted into the notches, pushing and widening the notches 7 in a circumferential direction. One end of the tubular member 8 is fitted into a recess 9b of a retaining ring 9 and the retaining ring 9 is fixed to a nut member 2.
Abstract:
A ring-like lubricant supply device 6 is fitted into a recess 4 of a nut member 2. The lubricant supply device 6 contains a lubricant and is formed in an outer peripheral surface with notches 7. Tubular members 8 each having an outer diameter larger than the diameter of the notch 7 are inserted into the notches, pushing and widening the notches 7 in a circumferential direction. One end of the tubular member 8 is fitted into a recess 9b of a retaining ring 9 and the retaining ring 9 is fixed to a nut member 2.
Abstract:
A ring-like lubricant supply device 6 is fitted into a recess 4 of a nut member 2. The lubricant supply device 6 contains a lubricant and is formed in an outer peripheral surface with notches 7. Tubular members 8 each having an outer diameter larger than the diameter of the notch 7 are inserted into the notches, pushing and widening the notches 7 in a circumferential direction. One end of the tubular member 8 is fitted into a recess 9b of a retaining ring 9 and the retaining ring 9 is fixed to a nut member 2.
Abstract:
A separator for use in a linear guide having a guide rail, a slider disposed on the guide rail so as to move relatively each other, and a plurality of roller-shaped rolling elements incorporated in the slider, the separator has a separator main body having, on both sides in a front and rear direction thereof, recessed surface sections which contact circumferential sections of the rolling elements; and at least a pair of arm sections provided parallel to each other on both sides of the separator main body while being oriented in the same direction, wherein a length of the arm section is equal or shorter than a distance between centers of two adjacent rolling elements with the separator main body sandwiched therebetween, with respect to a lateral direction of the separator main-body.
Abstract:
A linear guide device includes: a plurality of rolling elements; a guide rail extending in an axial direction thereof and including a plurality of rolling element rolling grooves in two side portions thereof, said rolling groove extending in an axial direction of the guide rail; a slider including a plurality of rolling element rolling grooves respectively opposed to said rolling element rolling grooves of said guide rail, said slider being supported on said guide rail in such a manner that said slider is movable along the axial direction of said guide rail through the rolling movements of said rolling elements respectively inserted between said rolling element rolling grooves of said guide rail and said rolling element rolling grooves of said slider, said slider including a rolling element endless circulation track along which said rolling elements are allowed to circulate endlessly; and a plurality of separators, each interposed between said adjoining rolling elements in the circulation direction of said rolling elements. A clearance is formed between a line of said rolling elements and said separators which are endlessly circulated.
Abstract:
The linear guide apparatus includes a guide rail 3 including a rolling body rolling groove 8 and a friction apply unit 6 assembled to the guide rail 3. The friction apply unit 6 includes a unit main body 15, a brake member 16, an oil pressure cylinder 17 and a plate spring 32. The brake member 16 is disposed so as to face the side surface 3a of the guide rail 3 and can be contacted with the other portions of the side surface 3a than the rolling body rolling groove 8 thereof. The oil pressure cylinder 17 includes a piston member 20 which is structured to be driven in a positive direction to thereby press the brake member 16 against the side surface 3a of the guide rail 3 and also the piston member 20 can be driven in the opposite direction to thereby remove the pressure of the brake member 16 from the side surface 3a.
Abstract:
A linear guide apparatus has a guide rail including rolling element rolling grooves formed in the side surfaces thereof so as to extend in the axial direction thereof; a slider including rolling element rolling grooves respectively opposed to the rolling element rolling grooves of the guide rail and mounted on the guide rail so as to be movable in the axial direction with respect to the guide rail; and, a plurality of rolling elements rollably interposed between the rolling element rolling grooves of the guide rail and the rolling element rolling grooves of the slider, wherein each of the portions, where the groove surfaces of the rolling element rolling grooves of either the guide rail or the slider and the outer surfaces thereof cross each other, is formed as a curved surface, whereby the groove surface and the outer surface are allowed to continue smoothly with each other.
Abstract:
In a linear guide which includes a guide rail, a slider and a plurality of rolling elements. The guide rail has at its outer surfaces rolling element rolling grooves extending in the axial direction thereof. The slider is assembled to the guide rail and has rolling element rolling grooves opposing to the rolling element rolling grooves of the guide rail. The plurality of rolling elements are filled within rolling element rolling paths formed by both the rolling grooves so as to roll freely therein. At least a part of the rolling element rolling grooves of the guide rail and the slider has a surface having the average roughness Ra along the center line of 0.20 nullm or less, to thereby provide a linear guide in which reduction of a sliding resistance and generation of powder due to the abrasion caused by the initial abrasion is hardly caused.