Backing bearings are particularly thick outer ring of the rolling bearing, when used to form a group to be mounted on the shaft of a stationary support rollers. Pressure on the work roll through the intermediate roller and the support roller is passed to the system to the rack through the saddle. Generally used for multi-roll cold rolling mill equipment can also be used for other occasions, such as straightening machine.
2013年8月12日星期一
a substantial saving material costs
XRT Series cross roller bearing design in a smaller space to provide high rotational accuracy and rigidity, a substantial saving material costs. Such bearings are the two bearing raceways and rollers are mounted together at right angles to the cross, the adjacent rollers in the opposite direction, the roller is mounted between the rollers and the spacers, the roller is also equipped with a support pad , which makes the rollers into two halves of the column volume within the same space. The angle between the bearing and the tapered geometry is such that the bearing effective span than the actual width of the bearing itself several times.
XRT Series backing bearings are suitable for high-speed machine tool applications, such as vertical boring machine and vertical grinder. Also particularly suitable for many space is limited, high precision rotating equipment. Size Range
Diameter 101.600 mm to 2463.800 mm (4.000 in. To 97.000 in.)
OD 279.400 mm to 2819.400 mm (11.000 in. To 111.000 in.)
XRT Series bearing design features. XRT Series has two tapered roller at 90 ° to the surface of the V-cutter vertical cross through a spacer retainer arrangement, able to withstand the radial load, axial load and other loads in all directions.
Raceways and rollers on the line contact structure provides maximum rotational accuracy, high stability and greater tilt stiffness.
Preload adjustable design extends bearing life, the maximum extent possible to increase the rigidity and provides a minimal beat.
Nylon spacer lower inertia, running less torque. Components using surface-hardened steel or bearing steel electroslag remelting, good impact resistance.
XRT Series bearing applications. Machine tools with precision rotary indexing tables, vertical and horizontal boring machine, vertical grinders, rotary surface grinders, large hobbing machine, guns and radar rotary table, a large radio and optical telescopes, rotate the camera, steering pivot and continuous casting machine, highly constrained pivot microscope stage, the rod center pivot, rotate bogie, welding holder, rotating assembly fixture, industrial robots, precision rotary tables, medical equipment, measuring equipment, IC manufacturing equipment
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