BQLZR SK8 8mm CNC Linear Motion Ball Slide Units Rail Support Guide Shaft Bearing Pack of 2

Note: The color of the item may vary slightly due to photography and your own computer Feature: Has good performances, low friction coefficients and long usage spans. A linear reciprocating motion for a variety of mechanical systems, since the role of the support or drive, often with the support shaft, with the use of linear bearings. Mainly used in stepper motors, machine tool rails, 3D printers and other equipment Specification: Color: silver Material: aluminum, bearing steel Product Size: linear optical axis: 8x500MM, optical axis support: inner hole 8MM, linear bearing: inner diameter: 8mm outer diameter: 15mm total length: 17mm Weight:54g Pacakge Incldue: 2 x Aluminum Linear Rail Support Guide Shaft Bearing