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 Polymer LM20UU Bearing Low noise Linear Motion Ball Bushing Number of Ball Circuit: 3 Size: 20mmx32mmx 45mm Quantity: 1 Bearing