All Categories > Linear Motion > SM Metric Type Linear Motion Bearings > Item # SM 12UU-OP Download PDF Download PDF Printable Page Email This Page Save To Favorites Please wait… Item # SM 12UU-OP, SM Metric Type Linear Motion Bearings List Price QUOTE SM Type Millimeter dimension series. Most widely used in Japan.Available options:Chrome or Stainless SteelSteel or Resin RetainerInternal Seals (UU)Adjustable or Open SeriesSlide Block Housings available in several styles larger image larger image Unit of Measure: Metric Specifications · Available Housing Types · Bearing Dimensions Specifications (dr) Shaft Diameter 12 mm (dr) Precision Tolerance 0/-6 µm (dr) High Tolerance 0/-9 µm (D) Outer Diameter 21 mm (D) Tolerance 0/-13 µm Length 30 mm (L) Tolerance 0/-200 µm Dist. Btwn Retaining Rings 23 mm (B) Tolerance 0/-200 µm (W) Retaining Ring Width 1.3 mm (D1) Retaining Ring Diameter 20 mm (h) Dimension 1.5 mm (h1) Dimension 8 mm (C) Dynamic Load 42 kgf (Co) Static Load 61 kgf Ball Circuit 4 Weight 31 gf Configuration Open Type Seal Type Seals on Both Ends (θ) Dimension 80 º Precision Eccentricity 8 µm High Eccentricity 12 µm Maximum Radial Clearance -4 µm Available Housing Types NB TOPBALL Slide Units include a clear anodized corrosion resistant aluminum block and either one or two TOPBALL self-aligning slide bushings Closed and adjustable clearance styles incorporate machined snap ring grooves in combination with standard retaining rings for slide bush retention. The open style incorporates bottom plates and mounting screws to retain bushing in proper position. All styles are provided with standard machined reference edges for proper alignment and installation. Bearing Dimensions Different Housing Types a1375.jpg