Plastic linear bearing material straight Conservation: Because plastic linear bearings inside the slide film is the use of self-lubricating plastic, so it was no additional lubrication and maintenance during use; and because linear bearings with plastic flutes, so Even bearing or shaft packed with dirt and need to maintain, dust automatically during movement from the chip out of the slot. So relative to the metal linear bearing guide price for a square, plastic linear bearings and more convenient care and maintenance. Needle bearing load capacity, suitable for installation dimensions restricted support structure, the journal surface hardened by rolling surface as a square wheel linear guide bearings with a press-fit onto the housing bore, it no longer axial positioning . Needle roller bearings prior to installation should inject the right amount of grease automation square rails, square rails under normal circumstances, no longer lubricated bearing assembly for BK journal bearing no protruding end, the closed end acts as a seal, and can withstand small axial swimming. Cheng Feng automation square rails _ _ Hebei factory direct bearing square rails provided by Cheng Feng Bearing Co., Ltd. Lishui City. Cheng Feng Bearing Co., Ltd. Lishui City (susan1125.b2b.hc360.com/) quality services and products, and are subject to approval and trust of new and old customers and the industry. Our company is a certified member of the whole network Commercial Union, Commercial Union Support icon on the page, you can talk directly to our customer service staff, to our future cooperation happy!