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This series features a molded race compound designed to provide low friction, low moisture absorbing properties.
  • Body - Low carbon steel, protective coated for corrosion resistance.
  • Ball - Alloy steel, heat treated, hard chrome plated.
  • Race - Molded, self-lubricating, reinforced Nylon.
  • Studded configuration available upon request. Specify by adding suffix "S". Ex.: SPM-8S.
Unit of Measure


Thread Type

N/A Right Hand

Thread Configuration

N/A Male

B - Ball Bore

N/A .3750 in

W - Ball Width

N/A .500 in

H - Head Width

N/A .406 in

A - Base to Center

N/A 1.938 in

D - Head Diameter

N/A 1.000 in

Ball Diameter

N/A .719 in

C - Thread Length

N/A 1.250 in

Thread Size

N/A 3/8-24

Thread Class


a - Misalignment Angle Clevis Mounted

N/A 12 º

Ultimate Radial Static Load Capacity

N/A 4,210 lbs

Approximate Brg. Weight

N/A .11 lb


N/A Stud

SPM & SPB Note

SPM & SPB Note

N/A For dimensional tolerances of listed features, see the PDF version of the catalog under the "View Product Catalogs" tab from the home page.