Linear bearing is a kind of linear motion system, produce with low cost for unlimited travel cooperation using copper bushing with the cylindrical shaft.Because in point contact ball bearing with axis, so the applied load is small.

Steel ball with minimal friction resistance, which can obtain high precision of the bimetallic bearing smooth movement.Linear bearing is widely used in electronic equipment, tensile testing machine and digital 3 d coordinate measurement device and other fine equipment, and multi-axis machine, punching machine, tool grinder, active gas cutting machine, printer, card sorting machine, industrial machinery, such as food packaging machine of sliding parts..

Smooth and friction. The fat is smooth Linear bearing internal write linear bearing into the anticorrosive oil, if use grease is smooth, with heat or organic solvent and eradicating anticorrosive oil, smooth air drying after adding grease.Advocate use sticky tags for N0.2 smooth lithium soap grease.. Oil is smooth If oil is smooth, don't have to wipe out the anticorrosive oil, according to the temperature change can choose ISO viscosity grade VG15-100 smooth oil. Shaft smooth pipe in water supply for people, or for oil from the oil hole on the bearing seat.Because sealing ring will scrape the smooth oil, oil smooth shall not apply to the hole with seals of the bearing.. Movement friction coefficient of friction coefficient size 0.001-0.004.Because of the friction caused by the energy loss is small.Movement speed is less than 60 m/min, temperature influence is negligible.Friction can be obtained by the following equation: F = ц. · P + fs F: friction force (N) * : seal resistance (2 ~ 5 N) P: external load (N) ц: friction coefficient. The device. The cooperation space And bearing inner hole and optical axis diameter using the cooperation of public servants.In general, the bearing can't add preloading, but high precision, light preloading can be added to the bearing, however, the diameter of the negative public servants shall not be more than the data in the table.Bearing housing and shaft and the bearing gap.

Bearing box of the device.
Standard card ring and several methods of bearing box fixed plate.Bearing positioning screw device will cause bearing coat deformation, should try to prevent.
Flange type mounting flange type linear bearings, with the cooperation of bearing hole surface precision must be accurate in the box.
Can gather (small open mouth) on the bearing and the bearing box on the opening phase of straight, can get uniform circumference direction of preloading.
Open mouth If used cooperate with appropriate bearing large opening bearing gap can be adjusted, also can add light preloading.

Matters needing attention when device When the linear bearing load bearing seat, should apply for work, prevent directly on face or seal, bearing should be applied evenly import, with buffer plate, with gently tap into the axis through linear bearings, shaft and bearing must be the center line of a straight line.If the axis skewed into, ball may drop, or maintains a variant, and the linear bearing formation damage Loads should be evenly distributed on the whole bearing, especially to accept sudden load, should use two or more bearings.Linear bearing will not receive a rotating load, otherwise can lead to accidents.