Original THK Linear Bearings LMH20LUU LMH20L Cut Flange Bush Bushing Shaft use for 3D Printer CNC Machine ID 20mm*OD 32mm*L 80mm

Linear Bushing model LM is a linear motion system used in combination with a cylindrical LM shaft to perform infinite straight motion. The balls in the loaded area of the nut are in point contact with the LM shaft. This allows straight motion with minimal friction resistance and achieves highly accurate and smooth motion despite the small permissible load. The nut uses high-carbon chromium bearing steel and its outer and inner surfaces are ground after being heat-treated. The Linear Bushing is used in a broad array of applications, such as slide units of precision equipment including OA equipment and peripherals, measuring instruments, automatic recorders and digital 3D measuring instruments, industrial machines including multi-spindle drilling machine, punching press, tool grinder, automatic gas cutting apparatus, printing machine, card selector and food packing machine. [Interchangeability] Since the dimensional tolerances of the Linear Bush's components are standardized, they are inter- changeable. The LM shaft is machined through cylindrical grinding, which can easily be performed,and it allows highly accurate fitting clearance to be achieved. [Highly Accurate Retainer Plate] Since the retainer, which guides three to eight rows of balls, is integrally molded, it is capable of accurately guiding the balls in the traveling direction and achieving stable running accuracy. Small-diameter types use integrally molded retainers made of synthetic resin. It reduces noise generated during operation and allows for superb lubrication. [Wide Array of Types] A wide array of types are available, such as standard type, clearance-adjustable type, open type,long type and flanged linear bushing, allowing the user to select a type that meets the intended use The LM shaft of the Linear Bushing needs to be manufactured with much consideration for hardness,surface roughness and dimensional accuracy of the shaft since balls roll directly on it.THK manufactures dedicated LM shafts for the Linear Bushing.

• The nut is integrated with a cut flange. Since the height is lower than model LMK, compact design is allowed. Since the rows of balls in the Linear Bushing are arranged so that two rows receive the load from the flat side, a long service life can be achieved
• The ball bearings in the load area offer point contact with the LM shaft. This allows straight motion with minimal friction resistance, providing smooth motion
• The nut uses high-carbon chromium bearing steel ,and its outer and inner surfaces are ground and heat-treated
• Linear bushings are used for medical equipment, packing equipment, and lightweight office automation equipment that are not subject to vibration or shock, etc