The structure of linear ball bearings are equipped with holder in the outer ring, retainer is provided with a plurality of steel balls, and infinite cyclic motion. Keep within the two ends of the spring ring is fixed, linear track at the ball bearing is provided with a notch window. This part is to make the steel ball and the shaft load rolling contact. Relative motion with friction coefficient is very low, so the linear motion ball bearing is a bearing mechanical equipment, automation equipment, energy-saving equipment such as the most appropriate choice.
Linear motion bearing, has been more and more widely used in electronics, machinery, instruments, robot, machine tools, food machinery, packaging machinery, medical machinery, printing machinery, textile machinery, CNC machine tools, automobile and so on general or special machinery industry.
The advantages of using the linear motion ball bearing: 1 because the flow contact can make the starting friction resistance and the friction resistance is small, so the energy can be saved, easy to get a high velocity. 2 pairs of load increases, but the friction coefficient is not sensitive to the change, therefore under heavy load, the friction coefficient is small, and maintain long-term precision, mechanical service life can be maintained for a long time. 3 linear motion bearings good interchangeability, convenient installation, time saving, and the mechanical characteristics of novel structure, small, light weight. 4 save oil lubrication and maintenance procedures, to achieve the purpose of simplification.
5 additional seal bearing on both sides is easy to invade and more dust or foreign place. Classification of linear ball bearings: The standard of the most widely used series of three different size series: LM series: metric size series (Southeast Asian countries with); LME series: metric size series (USA use). L mini to light, thin, short, series of modern requirement, ultra small size, diameter: 3, 4, 5MM. L stainless steel ring, steel ball ends cover are made of stainless steel, the holder is made of plastic. S, SL...... UU l open resection of a ball, and the outer ring, can achieve a high rigidity, and prevent the warping shaft guide mechanism, and can get clearance adjustable, no loose fit state.
LM...... OP LME...... OP l clearance adjustment type on the outer race along the long axis to a single slit type, in order to adjust the fixed bearing shell to match, no loosening state. LM...... ADJ LME...... ADJ l of the seal bearing single end or two ends are provided with lip with special synthetic rubber sealing ring, suitable for admission to a lot of dust and foreign invasion, and can not leak to maintain good oil.