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Linear bearing features and technical information

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Linear bearing is a linear motion system produced at low cost; it is used in combination with the cylindrical shaft for infinite stroke. Because the bearing ball is in point contact with the shaft, the load is small. The steel ball rotates with a very small frictional resistance; Achieve high-precision smooth motion.
Linear bearings are widely used in electronic equipment; tensile testing machines and digital three-dimensional coordinate measuring equipment; and multi-axis machine tools, punching machines, machine grinders, active gas cutting machines, printers, card sorters, food packaging machines and other industrial machinery sliding component.
. Smooth and rub. The grease smooth linear bearing is internally written with anti-corrosion oil; if the grease is smooth, first remove the anti-corrosion oil with kerosene or organic solvent; add smooth grease after air drying.
It is advocated to use a lithium soap smooth grease with a tack mark of N0.
. If the oil is smooth, if it is smooth with oil, it is not necessary to remove the anti-corrosion oil. According to the temperature change, the smooth oil with ISO viscosity grade VG15-100 can be selected.
The shaft can be smoothed from the oil supply pipe or from the oil hole on the outer bearing seat. Because the sealing ring will scrape off the smooth oil; the oil is smooth and not suitable for non-porous bearing with sealing ring.
. Friction coefficient The coefficient of motion friction coefficient is 0. 001-0. 004. The energy loss due to friction is small. When the movement speed is less than 60m/min, the temperature influence can be neglected. The friction force can be obtained by the following equation:
F=ц. 0鸓+fs
F: friction force (N). Good rickety risk P: external load (N) ц: friction coefficient. Device. Cooperative voids advocate cooperation with the inner bore of the bearing housing and the diameter of the optical axis.
Generally; bearings can not be preloaded; but high precision, light preload can be added to the bearing; however; negative diameter public service should not exceed the data in the table.

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