Anti-friction bearing

An anti-friction bearing comprising a rail;

• a bearing main body which is mounted on and adapted to be moved axially along the rail;
• at least one pair of bearing member circuits which are formed in the bearing main body and in the rail, each bearing member circuit of the pair having a rectilinear, load-transmitting bearing member row in engagement with an axially parallel, load-absorbing track of the bearing main body and with an axially parallel, load-absorbing track of the rail, a bearing member row running in the reverse direction and two curved bearing member rows therebetween;
• end plates having deflection surfaces for the curved bearing member rows and the end plates being made integral with axially parallel retaining webs corresponding in length to one-half of the axial length of said bearing main body which webs are located in alignment with one another and abut each other at their ends, the retaining webs securing the load-transmitting bearing member rows in engagement with the load-absorbing tracks of the bearing main body;
• the two load-transmitting bearing member rows of the two bearing member circuits of the pair being secured in engagement with the respective track of the bearing main body by a single group of two retaining webs which are in alignment with one another and which are common to the load-transmitting bearing member rows of said pair of bearing member circuits, each of said single group of two retaining webs being provided on a portion of a respective end plate and being arranged between the load-transmitting bearing member rows, of said pair of bearing member circuits, each of said single group of two retaining webs being provided with two retaining tracks (A14, B14), said retaining tracks (A14, B14) transitioning continuously without interruption of web material into respective deflection surfaces (22) of the respective end plate (18), and the retaining webs are supported in the bearing main body by a tongue-groove connection.

An anti-friction bearing comprising a rail;

• a bearing main body which is mounted on and adapted to be moved axially along the rail;
• at least one pair of bearing member circuits which are formed in the bearing main body and in the rail, each bearing member circuit of the pair having a rectilinear, load-transmitting bearing member row in engagement with an axially parallel, load-absorbing track of the bearing main body and with an axially parallel, load-absorbing track of the rail, a bearing member row running in the reverse direction and two curved bearing member rows therebetween;
• end plates having deflection surfaces for the curved bearing member rows and the end plates being made integral with axially parallel retaining webs corresponding in length to one-half of the axial length of said bearing main body which webs are located in alignment with one another and abut each other at their ends, the retaining webs securing the load-transmitting bearing member rows in engagement with the load-absorbing tracks of the bearing main body;
• the two load-transmitting bearing member rows of the two bearing member circuits of the pair being secured in engagement with the respective track of the bearing main body by a single group of two retaining webs which are in alignment with one another and which are common to the load-transmitting bearing member rows of said pair of bearing member circuits, each of said single group of two retaining webs being provided on a portion of a respective end plate and being arranged between the load-transmitting bearing member rows, of said pair of bearing member circuits, each of said single group of two retaining webs being provided with two retaining tracks (A14, B14), said retaining tracks (A14, B14) transitioning continuously without interruption of web material into respective deflection surfaces (22) of the respective end plate (18), a curved bearing member row is guided by an outer deflection surface provided in a contact surface of the end plate and by an inner deflection surface, the inner deflection surface being formed on at least one deflection piece which is located in a deflection piece holder recess in the contact surface of the end plate, and a lubricant supply channel is provided in the contact surface of at least one said end plate.

An anti-friction bearing comprising a rail;

• a bearing main body which is mounted on and adapted to be moved axially along the rail;
• at least one pair of bearing member circuits which are formed in the bearing main body and in the rail, each bearing member circuit of the pair having a rectilinear, load-transmitting bearing member row in engagement with an axially parallel, load-absorbing track of the bearing main body and with an axially parallel, load-absorbing track of the rail, a bearing member row running in the reverse direction and two curved bearing member rows therebetween;
• end plates having deflection surfaces for the curved bearing member rows and the end plates being made integral with axially parallel retaining webs corresponding in length to one-half of the axial length of said bearing main body which webs are located in alignment with one another and abut each other at their ends, the retaining webs securing the load-transmitting bearing member rows in engagement with the load-absorbing tracks of the bearing main body;
• the two load-transmitting bearing member rows of the two bearing member circuits of the pair being secured in engagement with the respective track of the bearing main body by a single group of two retaining webs which are in alignment with one another and which are common to the load-transmitting bearing member rows of said pair of bearing member circuits, each of said single group of two retaining webs being provided on a portion of a respective end plate and being arranged between the load-transmitting bearing member rows, of said pair of bearing member circuits, each of said single group of two retaining webs being provided with two retaining tracks (A14, B14), said retaining tracks (A14, B14) transitioning continuously without interruption of web material into respective deflection surfaces (22) of the respective end plate (18), the bearing main body comprises two pairs of bearing member circuits which are disposed opposite one another and locate the rail between them, and the oppositely located pairs of bearing member circuits are accommodated in parts of the bearing main body and their mutual spacing is variable.

An anti-friction bearing comprising a rail;

• a bearing main body which is mounted on and adapted to be moved axially along the rail;
• at least one pair of bearing member circuits which are formed in the bearing main body and in the rail, each bearing member circuit of the pair having a rectilinear, load-transmitting bearing member row in engagement with an axially parallel, load-absorbing track of the bearing main body and with an axially parallel, load-absorbing track of the rail, a bearing member row running in the reverse direction and two curved bearing member rows therebetween;
• end plates having deflection surfaces for the curved bearing member rows and the end plates being made integral with axially parallel retaining webs corresponding in length to one-half of the axial length of said bearing main body which webs are located in alignment with one another and abut each other at their ends, the retaining webs securing the load-transmitting bearing member rows in engagement with the load-absorbing tracks of the bearing main body;
• the two load-transmitting bearing member rows of the two bearing member circuits of the pair being secured in engagement with the respective track of the bearing main body by a single group of two retaining webs which are in alignment with one another and which are common to the load-transmitting bearing member rows of said pair of bearing member circuits, each of said single group of two retaining webs being provided on a portion of a respective end plate and being arranged between the load-transmitting bearing member rows, of said pair of bearing member circuits, each of said single group of two retaining webs being provided with two retaining tracks (A14, B14), said retaining tracks (A14, B14) transitioning continuously without interruption of web material into respective deflection surfaces (22) of the respective end plate (18), the bearing main body comprises two pairs of bearing member circuits which are disposed opposite one another and locate the rail between them, and the rail is made of two profiled parts having load absorbing tracks, there being at least one intermediate piece therebetween.

An anti-friction bearing comprising a rail;

• a bearing main body which is mounted on and adapted to be moved axially along the rail;
• at least one pair of bearing member circuits which are formed in the bearing main body and in the rail, each bearing member circuit of the pair having a rectilinear, load-transmitting bearing member row in engagement with an axially parallel, load-absorbing track of the bearing main body and with an axially parallel, load-absorbing track of the rail, a bearing member row running in the reverse direction and two curved bearing member rows therebetween;
• end plates having deflection surfaces for the curved bearing member rows and the end plates being made integral with axially parallel retaining webs corresponding in length to one-half of the axial length of said bearing main body which webs are located in alignment with one another and abut each other at their ends, the retaining webs securing the load-transmitting bearing member rows in engagement with the load-absorbing tracks of the bearing main body;
• the two load-transmitting bearing member rows of the two bearing member circuits of the pair being secured in engagement with the respective track of the bearing main body by a single group of two retaining webs which are in alignment with one another and which are common to the load-transmitting bearing member rows of said pair of bearing member circuits, each of said single group of two retaining webs being provided on a portion of a respective end plate and being arranged between the load-transmitting bearing member rows, of said pair of bearing member circuits, each of said single group of two retaining webs being provided with two retaining tracks (A14, B14), said retaining tracks (A14, B14) transitioning continuously without interruption of web material into respective deflection surfaces (22) of the respective end plate (18), the bearing main body comprises two pairs of bearing member circuits which are disposed opposite one another and locate the rail between them, and sealing plates are attached to the end plates on their front faces facing away from the bearing main body, each sealing plate having a sealing edge which at least approximately follows the profile of the rail at least on a portion of its periphery.

An anti-friction bearing comprising a rail;

• a bearing main body which is mounted on and adapted to be moved axially along the rail;
• at least one pair of bearing member circuits which are formed in the bearing main body and in the rail, each bearing member circuit of the pair having a rectilinear, load-transmitting bearing member row in engagement with an axially parallel, load-absorbing track of the bearing main body and with an axially parallel, load-absorbing track of the rail, a bearing member row running in the reverse direction and two curved bearing member rows therebetween;
• end plates having deflection surfaces for the curved bearing member rows and the end plates being made integral with axially parallel retaining webs corresponding in length to one-half of the axial length of said bearing main body which webs are located in alignment with one another and abut each other at their ends, the retaining webs securing the load-transmitting bearing member rows in engagement with the load-absorbing tracks of the bearing main body;
• the two load-transmitting bearing member rows of the two bearing member circuits of the pair being secured in engagement with the respective track of the bearing main body by a single group of two retaining webs which are in alignment with one another and which are common to the load-transmitting bearing member rows of said pair of bearing member circuits, each of said single group of two retaining webs being provided on a portion of a respective end plate and being arranged between the load-transmitting bearing member rows, of said pair of bearing member circuits, each of said single group of two retaining webs being provided with two retaining tracks (A14, B14), said retaining tracks (A14, B14) transitioning continuously without interruption of web material into respective deflection surfaces (22) of the respective end plate (18), and sealing strips, which are parallel to the load-transmitting bearing member rows, are attached to the bearing main body, on both sides of the load-transmitting bearing member rows of a pair of bearing member circuits, the sealing strips engaging the rail.

An anti-friction bearing comprising a rail;

• a bearing main body which is mounted on and adapted to be moved axially along the rail;
• at least one pair of bearing member circuits which are formed in the bearing main body and in the rail, each bearing member circuit of the pair having a rectilinear, load-transmitting bearing member row in engagement with an axially parallel, load-absorbing track of the bearing main body and with an axially parallel, load-absorbing track of the rail, a bearing member row running in the reverse direction and two curved bearing member rows therebetween;
• end plates having deflection surfaces for the curved bearing member rows and the end plates being made integral with axially parallel retaining webs corresponding in length to one-half of the axial length of said bearing main body which webs are located in alignment with one another and abut each other at their ends, the retaining webs securing the load-transmitting bearing member rows in engagement with the load-absorbing tracks of the bearing main body;
• the two load-transmitting bearing member rows of the two bearing member circuits of the pair being secured in engagement with the respective track of the bearing main body by a single group of two retaining webs which are in alignment with one another and which are common to the load-transmitting bearing member rows of said pair of bearing member circuits, each of said single group of two retaining webs being provided on a portion of a respective end plate and being arranged between the load-transmitting bearing member rows, of said pair of bearing member circuits, each of said single group of two retaining webs being provided with two retaining tracks (A14, B14), said retaining tracks (A14, B14) transitioning continuously without interruption of web material into respective deflection surfaces (22) of the respective end plate (18), the bearing main body comprises two pairs of bearing member circuits which are disposed opposite one another and locate the rail between them, the bearing main body is U-shaped and is disposed about the rail, the bearing member circuits being accommodated in the legs of the U-shaped bearing main body, and the web of the U-shaped bearing main body has a contact surface, remote from the rail, for contact with a machine part, the web being provided with means for connecting it to the machine part by bolted connections which are arranged close to the legs of the U-shaped bearing main body and approximately centrally between the said legs.

An anti-friction bearing comprising an axially extending rail having a pair of opposite sides;

• a bearing main body which is mounted on and straddles said rail and is adapted to move axially along the rail;
• two pair of bearing member circuits which are formed in the bearing main body and in the rail, each pair located on an opposite side of said rail, each bearing member circuit of the pair having a rectilinear, load-transmitting bearing member row in engagement with an axially parallel, load-absorbing track of the bearing main body and with an axially parallel, load-absorbing track of the rail, a bearing member row running in the reverse direction and two curved bearing member rows therebetween;
• a pair of end plates having deflection surfaces for the curved bearing member rows and each said end plate including a pair of axially parallel laterally spaced retaining webs formed integrally therewith projecting from said end plate and having an end spaced from said end plate, said webs on said end plate located in alignment and abutment with said webs on said other end plate, said end plates and retaining webs secured to said bearing main body, the retaining webs securing the load-transmitting bearing member rows in engagement with the load-absorbing tracks of the bearing main body;
• the two load-transmitting bearing member rows of the each pair of bearing member circuits being secured in engagement with the respective track of the bearing main body by a single group of two retaining webs each projecting from a different said end plate and disposed in alignment with one another and which are common to the load-transmitting bearing member rows, each single group of two retaining webs being arranged between the load-transmitting bearing member rows on one of said opposite sides of said rail.

An anti-friction bearing comprising a rail;

• a bearing main body which is mounted on and adapted to be moved axially along the rail;
• at least one pair of bearing member circuits which are formed in the bearing main body and in the rail, each bearing member circuit of the pair having a rectilinear, load-transmitting bearing member row in engagement with an axially parallel, load-absorbing track of the bearing main body and with an axially parallel, load-absorbing track of the rail, a bearing member row running in the reverse direction and two curved bearing member rows therebetween;
• end plates having deflection surfaces for the curved bearing member rows and the end plates being made integral with axially parallel retaining webs corresponding in length to one-half of the axial length of said bearing main body which webs are located in alignment with one another and abut each other at their ends, the retaining webs securing the load-transmitting bearing member rows in engagement with the load-absorbing tracks of the bearing main body;
• the two load-transmitting bearing member rows of the two bearing member circuits of the pair being secured in engagement with the respective track of the bearing main body by a single group of two retaining webs which are in alignment with one another and which are common to the load-transmitting bearing member rows of said pair of bearing member circuits, each of said single group of two retaining webs being provided on a portion of a respective end plate and being arranged between the load-transmitting bearing member rows, of said pair of bearing member circuits, each of said single group of two retaining webs being provided with two retaining tracks (A14, B14), said retaining tracks (A14, B14) transitioning continuously without interruption of web material into respective deflection surfaces (22) of the respective end plate (18), a curved bearing member row is guided by an outer deflection surface provided in a contact surface of the end plate and by an inner deflection surface, the inner deflection surface being formed on at least one deflection piece which is located in a deflection piece holder recess in the contact surface of the end plate, a lubricant supply channel is provided in the contact surface of at least one end plate, the lubricant supply channel is connected to a lubricant inlet of the end plate, leads to the deflection piece holder and supplies at least one bearing member circulation channel with lubricant by a lubricant distribution system inside the deflection piece holder, the lubricant distribution system comprises a longitudinal distribution channel in a rear surface of the deflection piece, the rear surface facing away from the inner deflection surface, and there is a transverse bore which connects the longitudinal distribution channel with the inner deflection surface of the respective curved bearing member row, the bearing member circuits are ball circuits, the rectilinear, load-transmitting bearing member rows are ball rows, the bearing member rows running in the reverse direction are ball rows running in the reverse direction, the curved bearing member rows are curved ball rows, and the load absorbing tracks of the bearing main body, the load absorbing tracks of the rail and retaining tracks of the retaining webs are constructed respectively as running grooves and retaining grooves, and the opening of the transverse bore into the inner deflection surface is staggered in relation to a plane containing the ball centres of the respective curved ball row.