20mm Slide Unit Ball Bushing Block Linear MotionAluminum Pillow Block Slide Unit SC20UU 20mm ID Bearing Pre installed Linear Motion Support This SC20UU aluminum pillow block is a compact linear slide unit with a pre installed 20mm ID bearing (LM20UU). Designed for smooth, guided motion, it works great in CNC setups, 3D printers, or any linear shaft application. The aluminum block offers strength without the weight, and the unit is ready to mount. Fits 20mm linear shafts Pre installed LM20UU linear
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