20mm Low noise Linear Motion Bushing Solid Polymer Lm20uu Bearing 20x32x45mm20mm Linear Motion Bushing Low noise Solid Polymer LM20UU Bearing Works with 20mm Shafts 20mm x 32mm x 45mm Low noise polymer LM20UU Linear Motion Ball Bushing works with a 20 mm Shafts, Size is 20mmx 32mm x 45mm, the inner Diameter is 20mm, the outer Diameter is 32mm and the Length is 45mm. Bearing has Built in Rubber Seals Item: Polymer LM20UU Bearing Type: Low noise Linear Motion Ball Bushing Number of Ball Circuit: 3 Size: 20mmx32mmx 45mm