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Emerson Bearing Company
201 Brighton Avenue
Boston, MA 02134
Phone: (800) 225-4587 • Fax: (800) 252-1996
Email: info@emersonbearing.com
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SM Type Millimeter dimension series. Most widely used in Japan.

Available options:
  • Chrome or Stainless Steel
  • Steel or Resin Retainer
  • Internal Seals (UU)
  • Adjustable or Open Series
  • Slide Block Housings available in several styles
SM Type Linear Motion Bearing Dimension Diagram
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Item #

(dr) Shaft Diameter

(D) Outer Diameter

Length

Dist. Btwn Retaining Rings

(W) Retaining Ring Width

(D1) Retaining Ring Diameter

(C) Dynamic Load

(Co) Static Load

Configuration

Seal Type

SM 16UU-OP N/A 16 mm N/A 28 mm N/A 37 mm N/A 26.5 mm N/A 1.6 mm N/A 27 mm N/A 79 kgf N/A 120 kgf N/A Open Type N/A Seals on Both Ends
SM 20 N/A 20 mm N/A 32 mm N/A 42 mm N/A 30.5 mm N/A 1.6 mm N/A 30.5 mm N/A 90 kgf N/A 140 kgf N/A Standard Type N/A No Seals
SM 20UU N/A 20 mm N/A 32 mm N/A 42 mm N/A 30.5 mm N/A 1.6 mm N/A 30.5 mm N/A 90 kgf N/A 140 kgf N/A Standard Type N/A Seals on Both Ends
SM 20-AJ N/A 20 mm N/A 32 mm N/A 42 mm N/A 30.5 mm N/A 1.6 mm N/A 30.5 mm N/A 90 kgf N/A 140 kgf N/A Adjustable Type N/A No Seals
SM 20UU-AJ N/A 20 mm N/A 32 mm N/A 42 mm N/A 30.5 mm N/A 1.6 mm N/A 30.5 mm N/A 90 kgf N/A 140 kgf N/A Adjustable Type N/A Seals on Both Ends
SM 20-OP N/A 20 mm N/A 32 mm N/A 42 mm N/A 30.5 mm N/A 1.6 mm N/A 30.5 mm N/A 90 kgf N/A 140 kgf N/A Open Type N/A No Seals
SM 20UU-OP N/A 20 mm N/A 32 mm N/A 42 mm N/A 30.5 mm N/A 1.6 mm N/A 30.5 mm N/A 90 kgf N/A 140 kgf N/A Open Type N/A Seals on Both Ends
SM 25 N/A 25 mm N/A 40.0 mm N/A 59 mm N/A 41 mm N/A 1.85 mm N/A 38 mm N/A 100 kgf N/A 160 kgf N/A Standard Type N/A No Seals
SM 25UU N/A 25 mm N/A 40.0 mm N/A 59 mm N/A 41 mm N/A 1.85 mm N/A 38 mm N/A 100 kgf N/A 160 kgf N/A Standard Type N/A Seals on Both Ends
SM 25-AJ N/A 25 mm N/A 40.0 mm N/A 59 mm N/A 41 mm N/A 1.85 mm N/A 38 mm N/A 100 kgf N/A 160 kgf N/A Adjustable Type N/A No Seals
SM 25UU-AJ N/A 25 mm N/A 40.0 mm N/A 59 mm N/A 41 mm N/A 1.85 mm N/A 38 mm N/A 100 kgf N/A 160 kgf N/A Adjustable Type N/A Seals on Both Ends
SM 25-OP N/A 25 mm N/A 40.0 mm N/A 59 mm N/A 41 mm N/A 1.85 mm N/A 38 mm N/A 100 kgf N/A 160 kgf N/A Open Type N/A No Seals
SM 25UU-OP N/A 25 mm N/A 40.0 mm N/A 59 mm N/A 41 mm N/A 1.85 mm N/A 38 mm N/A 100 kgf N/A 160 kgf N/A Open Type N/A Seals on Both Ends
SM 30 N/A 30 mm N/A 45 mm N/A 64 mm N/A 44.5 mm N/A 1.85 mm N/A 43 mm N/A 160 kgf N/A 280 kgf N/A Standard Type N/A No Seals
SM 30UU N/A 30 mm N/A 45 mm N/A 64 mm N/A 44.5 mm N/A 1.85 mm N/A 43 mm N/A 160 kgf N/A 280 kgf N/A Standard Type N/A Seals on Both Ends
SM 30-AJ N/A 30 mm N/A 45 mm N/A 64 mm N/A 44.5 mm N/A 1.85 mm N/A 43 mm N/A 160 kgf N/A 280 kgf N/A Adjustable Type N/A No Seals
SM 30UU-AJ N/A 30 mm N/A 45 mm N/A 64 mm N/A 44.5 mm N/A 1.85 mm N/A 43 mm N/A 160 kgf N/A 280 kgf N/A Adjustable Type N/A Seals on Both Ends
SM 30-OP N/A 30 mm N/A 45 mm N/A 64 mm N/A 44.5 mm N/A 1.85 mm N/A 43 mm N/A 160 kgf N/A 280 kgf N/A Open Type N/A No Seals
SM 30UU-OP N/A 30 mm N/A 45 mm N/A 64 mm N/A 44.5 mm N/A 1.85 mm N/A 43 mm N/A 160 kgf N/A 280 kgf N/A Open Type N/A Seals on Both Ends
SM 35 N/A 35 mm N/A 52.0 mm N/A 70 mm N/A 49.5 mm N/A 2.1 mm N/A 49 mm N/A 170 kgf N/A 320 kgf N/A Standard Type N/A No Seals
SM 35UU N/A 35 mm N/A 52.0 mm N/A 70 mm N/A 49.5 mm N/A 2.1 mm N/A 49 mm N/A 170 kgf N/A 320 kgf N/A Standard Type N/A Seals on Both Ends
SM 35-AJ N/A 35 mm N/A 52.0 mm N/A 70 mm N/A 49.5 mm N/A 2.1 mm N/A 49 mm N/A 170 kgf N/A 320 kgf N/A Adjustable Type N/A No Seals
SM 35UU-AJ N/A 35 mm N/A 52.0 mm N/A 70 mm N/A 49.5 mm N/A 2.1 mm N/A 49 mm N/A 170 kgf N/A 320 kgf N/A Adjustable Type N/A Seals on Both Ends
SM 35-OP N/A 35 mm N/A 52.0 mm N/A 70 mm N/A 49.5 mm N/A 2.1 mm N/A 49 mm N/A 170 kgf N/A 320 kgf N/A Open Type N/A No Seals
SM 35UU-OP N/A 35 mm N/A 52.0 mm N/A 70 mm N/A 49.5 mm N/A 2.1 mm N/A 49 mm N/A 170 kgf N/A 320 kgf N/A Open Type N/A Seals on Both Ends
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