The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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  • Body - Low carbon steel - protective coated for corrosion resistance.
  • Ball - Alloy steel - heat treated - hard chrome plated.
  • Race - Sintered brass - oil impregnated.
  • Units are supplied without grease fittings. When a grease fitting is required, specify by adding suffix "Z" or "F". Ex.: BM-6Z = Zerk Type Fitting BM-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.: BM-8S.
SM & SB Image
SM & SB Dimensional Drawing
Unit of Measure
1 2 

Part Number

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

CAD

BM-3 N/A Right Hand N/A .1900 in N/A .312 in N/A .250 in N/A 1.250 in N/A .625 in N/A .750 in N/A 10-32 N/A 1,169 lbs N/A
BB-3 N/A Left Hand N/A .1900 in N/A .312 in N/A .250 in N/A 1.250 in N/A .625 in N/A .750 in N/A 10-32 N/A 1,169 lbs N/A
BM-3F N/A Right Hand N/A .1900 in N/A .312 in N/A .250 in N/A 1.250 in N/A .625 in N/A .750 in N/A 10-32 N/A Consult Engineering Department N/A
BB-3F N/A Left Hand N/A .1900 in N/A .312 in N/A .250 in N/A 1.250 in N/A .625 in N/A .750 in N/A 10-32 N/A Consult Engineering Department N/A
BM-3Z N/A Right Hand N/A .1900 in N/A .312 in N/A .250 in N/A 1.250 in N/A .625 in N/A .750 in N/A 10-32 N/A Consult Engineering Department N/A
BB-3Z N/A Left Hand N/A .1900 in N/A .312 in N/A .250 in N/A 1.250 in N/A .625 in N/A .750 in N/A 10-32 N/A Consult Engineering Department N/A
BM-4 N/A Right Hand N/A .2500 in N/A .375 in N/A .281 in N/A 1.562 in N/A .750 in N/A 1.000 in N/A 1/4-28 N/A 2,158 lbs N/A
BB-4 N/A Left Hand N/A .2500 in N/A .375 in N/A .281 in N/A 1.562 in N/A .750 in N/A 1.000 in N/A 1/4-28 N/A 2,158 lbs N/A
BM-4F N/A Right Hand N/A .2500 in N/A .375 in N/A .281 in N/A 1.562 in N/A .750 in N/A 1.000 in N/A 1/4-28 N/A Consult Engineering Department N/A
BB-4F N/A Left Hand N/A .2500 in N/A .375 in N/A .281 in N/A 1.562 in N/A .750 in N/A 1.000 in N/A 1/4-28 N/A Consult Engineering Department N/A
BM-4Z N/A Right Hand N/A .2500 in N/A .375 in N/A .281 in N/A 1.562 in N/A .750 in N/A 1.000 in N/A 1/4-28 N/A Consult Engineering Department N/A
BB-4Z N/A Left Hand N/A .2500 in N/A .375 in N/A .281 in N/A 1.562 in N/A .750 in N/A 1.000 in N/A 1/4-28 N/A Consult Engineering Department N/A
BM-5 N/A Right Hand N/A .3125 in N/A .437 in N/A .344 in N/A 1.875 in N/A .875 in N/A 1.250 in N/A 5/16-24 N/A 2,784 lbs N/A
BB-5 N/A Left Hand N/A .3125 in N/A .437 in N/A .344 in N/A 1.875 in N/A .875 in N/A 1.250 in N/A 5/16-24 N/A 2,784 lbs N/A
BM-5F N/A Right Hand N/A .3125 in N/A .437 in N/A .344 in N/A 1.875 in N/A .875 in N/A 1.250 in N/A 5/16-24 N/A Consult Engineering Department N/A
BB-5F N/A Left Hand N/A .3125 in N/A .437 in N/A .344 in N/A 1.875 in N/A .875 in N/A 1.250 in N/A 5/16-24 N/A Consult Engineering Department N/A
BM-5Z N/A Right Hand N/A .3125 in N/A .437 in N/A .344 in N/A 1.875 in N/A .875 in N/A 1.250 in N/A 5/16-24 N/A Consult Engineering Department N/A
BB-5Z N/A Left Hand N/A .3125 in N/A .437 in N/A .344 in N/A 1.875 in N/A .875 in N/A 1.250 in N/A 5/16-24 N/A Consult Engineering Department N/A
BM-6 N/A Right Hand N/A .3750 in N/A .500 in N/A .406 in N/A 1.938 in N/A 1.000 in N/A 1.250 in N/A 3/8-24 N/A 3,915 lbs N/A
BB-6 N/A Left Hand N/A .3750 in N/A .500 in N/A .406 in N/A 1.938 in N/A 1.000 in N/A 1.250 in N/A 3/8-24 N/A 3,915 lbs N/A
BM-6F N/A Right Hand N/A .3750 in N/A .500 in N/A .406 in N/A 1.938 in N/A 1.000 in N/A 1.250 in N/A 3/8-24 N/A Consult Engineering Department N/A
BB-6F N/A Left Hand N/A .3750 in N/A .500 in N/A .406 in N/A 1.938 in N/A 1.000 in N/A 1.250 in N/A 3/8-24 N/A Consult Engineering Department N/A
BM-6Z N/A Right Hand N/A .3750 in N/A .500 in N/A .406 in N/A 1.938 in N/A 1.000 in N/A 1.250 in N/A 3/8-24 N/A Consult Engineering Department N/A
BB-6Z N/A Left Hand N/A .3750 in N/A .500 in N/A .406 in N/A 1.938 in N/A 1.000 in N/A 1.250 in N/A 3/8-24 N/A Consult Engineering Department N/A
BM-7 N/A Right Hand N/A .4375 in N/A .562 in N/A .437 in N/A 2.125 in N/A 1.125 in N/A 1.375 in N/A 7/16-20 N/A 4,218 lbs N/A
Unit of Measure
1 2