Linear bearings are a linear motion system for linear travel with cylindrical shafts.
Linear bearings fast easy superior automation selection have included. Linear bearings are widely used in precision machine tools, textile machinery, food packaging machinery, printing machinery and other industrial machinery sliding parts.
Because of the bearing ball and bearing jacket point contact, the steel ball to the smallest friction resistance rolling, so the linear bearing has a small friction, and more stable, does not change with the bearing speed, can get high sensitivity, high precision smooth linear motion.
Linear bearing consumption also has its limitations, the most important is the bearing impact load capacity is poor, and bearing capacity is also poor, and secondly linear bearing in high-speed movement vibration and noise is bigger.
Extended information
Linear bearing maintenance:
1, metal linear bearing maintenance: lubrication and friction: linear bearing internal injection of corrosion-resistant oil, if lubricated with grease, the first use of kerosene or organic solvents to remove corrosion-resistant oil, air-drying, and then add grease.
If the oil lubrication, do not have to clear the corrosion resistant oil, according to the temperature change can choose ISO viscosity grade VG15-100 lubricant. Shaft lubrication can be supplied from the oil supply pipe, or from the oil hole on the outer bearing housing. Since the seal will scrape off the lubricant, oil lubrication is not applicable to bearings with seals without holes.
2, plastic linear bearing maintenance: because of the plastic linear bearing inside the sliding film is made of self-lubricating plastic, so its use in the process of no additional oil supply and maintenance;
And because of the plastic linear bearing with a chip removal groove, so even if the bearings or shafts crowded with dust is no need to go to the maintenance, dust will be automatically in the process of the movement of the chip removal groove from the belt out; only when the Only when the sliding film wear failure can be directly used to replace the internal sliding film; maintenance is very convenient.
Baidu Encyclopedia-Linear Bearings