Aurora Bearing Company
Aurora Bearing Company
901 Aucutt Rd.
Montgomery, IL 60538
Phone: 630.859.2030 • Fax: 630.859.0971
Email: customersupport@aurorabearing.com • Website: www.aurorabearing.com
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  • Body - Low carbon steel, protective coated for corrosion resistance. Size 16 standard series body is alloy steel not heat treated.
  • Ball - Alloy steel, heat treated, hard chrome plated.
  • Race - Low carbon steel, protective coated for corrosion resistance.
  • Grease Fitting available for sizes -3 and up. Units are supplied without grease fittings. When a grease fitting is required, specify by adding suffix "Z" or "F". Ex.: MM-6Z = Zerk Type Fitting MM-6F = Flush Type Fitting.
  • Load ratings apply only to rod ends without grease fittings. For load ratings with fittings, please consult our engineering department.
  • Studded configuration available upon request. Specify by adding suffix "S". Ex.: MM-8S.
  • PTFE Liners available upon request. Specify by adding suffix "T". Ex.: MM-8T.
MM & MB Image
MM & MB Dimensional Drawing
Unit of Measure
1 2 3 4 

Item #

Thread Type

B - Ball Bore

W - Ball Width

H - Head Width

A - Base to Center

D - Head Diameter

C - Thread Length

Thread Size

Ultimate Radial Static Load Capacity

MM-14 N/A Right Hand N/A .8750 in N/A .875 in N/A .765 in N/A 3.375 in N/A 2.000 in N/A 2.000 in N/A 7/8-14 N/A 18,476 lbs
MB-14 N/A Left Hand N/A .8750 in N/A .875 in N/A .765 in N/A 3.375 in N/A 2.000 in N/A 2.000 in N/A 7/8-14 N/A 18,476 lbs
MM-14Z N/A Right Hand N/A .8750 in N/A .875 in N/A .765 in N/A 3.375 in N/A 2.000 in N/A 2.000 in N/A 7/8-14 N/A Consult Engineering Department
MB-14Z N/A Left Hand N/A .8750 in N/A .875 in N/A .765 in N/A 3.375 in N/A 2.000 in N/A 2.000 in N/A 7/8-14 N/A Consult Engineering Department
MM-14F N/A Right Hand N/A .8750 in N/A .875 in N/A .765 in N/A 3.375 in N/A 2.000 in N/A 2.000 in N/A 7/8-14 N/A Consult Engineering Department
MB-14F N/A Left Hand N/A .8750 in N/A .875 in N/A .765 in N/A 3.375 in N/A 2.000 in N/A 2.000 in N/A 7/8-14 N/A Consult Engineering Department
MM-14-1 N/A Right Hand N/A .8750 in N/A .875 in N/A .687 in N/A 3.375 in N/A 2.000 in N/A 1.875 in N/A 7/8-14 N/A 22,843 lbs
MB-14-1 N/A Left Hand N/A .8750 in N/A .875 in N/A .687 in N/A 3.375 in N/A 2.000 in N/A 1.875 in N/A 7/8-14 N/A 22,843 lbs
MM-14Z-1 N/A Right Hand N/A .8750 in N/A .875 in N/A .687 in N/A 3.375 in N/A 2.000 in N/A 1.875 in N/A 7/8-14 N/A Consult Engineering Department
MB-14Z-1 N/A Left Hand N/A .8750 in N/A .875 in N/A .687 in N/A 3.375 in N/A 2.000 in N/A 1.875 in N/A 7/8-14 N/A Consult Engineering Department
MM-14F-1 N/A Right Hand N/A .8750 in N/A .875 in N/A .687 in N/A 3.375 in N/A 2.000 in N/A 1.875 in N/A 7/8-14 N/A Consult Engineering Department
MB-14F-1 N/A Left Hand N/A .8750 in N/A .875 in N/A .687 in N/A 3.375 in N/A 2.000 in N/A 1.875 in N/A 7/8-14 N/A Consult Engineering Department
MM-16 N/A Right Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1 1/4-12 N/A 43,541 lbs
MB-16 N/A Left Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1 1/4-12 N/A 43,541 lbs
MM-16Z N/A Right Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1 1/4-12 N/A 43,541 lbs
MB-16Z N/A Left Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1 1/4-12 N/A 43,541 lbs
MM-16F N/A Right Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1 1/4-12 N/A 43,541 lbs
MB-16F N/A Left Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1 1/4-12 N/A 43,541 lbs
MM-16-1 N/A Right Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1-14 N/A 43,541 lbs
MB-16-1 N/A Left Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1-14 N/A 43,541 lbs
MM-16Z-1 N/A Right Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1-14 N/A 43,541 lbs
MB-16Z-1 N/A Left Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1-14 N/A 43,541 lbs
MM-16F-1 N/A Right Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1-14 N/A 43,541 lbs
MB-16F-1 N/A Left Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1-14 N/A 43,541 lbs
MM-16-2 N/A Right Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.750 in N/A 2.125 in N/A 1-12 N/A 43,541 lbs
Unit of Measure
1 2 3 4