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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Timken® angular contact ball bearings are designed for combination radial and axial loading. Single-row bearings have high thrust capacity in one direction. Some single-row bearings are specifically designed for duplex mounting in sets for maximum performance.
Fafnir® Single Row Ball Bearings
Unit of Measure
1 2 3 

Part Number

Rows per Set

d - Bore

D - Outer Diameter

Bearing Width

Total Width

Contact Angle

C0 - Static Radial Rating (per row)

Ce - Dynamic Radial Rating (per row)

Ball Type

CAD

MM9316WI 3H QUM N/A Quadruplex N/A 76.2 mm N/A 110 mm4.3307 in N/A 15.88 mm0.625 in N/A 63.52 mm2.5000 in N/A 60 º N/A 77000 N17300 lbf N/A 44500 N10000 lbf N/A STEEL N/A CAD
MM9316WI 3H SUL N/A Single N/A 76.2 mm N/A 110 mm4.3307 in N/A 15.88 mm0.625 in N/A 15.88 mm0.625 in N/A 60 º N/A 77000 N17300 lbf N/A 44500 N10000 lbf N/A STEEL N/A CAD
MM9316WI 3H DUL N/A Duplex N/A 76.2 mm N/A 110 mm4.3307 in N/A 15.88 mm0.625 in N/A 31.76 mm1.25 in N/A 60 º N/A 77000 N17300 lbf N/A 44500 N10000 lbf N/A STEEL N/A CAD
MM9316WI 3H QUL N/A Quadruplex N/A 76.2 mm N/A 110 mm4.3307 in N/A 15.88 mm0.625 in N/A 63.52 mm2.5000 in N/A 60 º N/A 77000 N17300 lbf N/A 44500 N10000 lbf N/A STEEL N/A CAD
MM9321WI 3H SUH N/A Single N/A 101.600 mm N/A 145 mm5.7087 in N/A 22.23 mm0.8750 in N/A 22.23 mm0.875 in N/A 60 º N/A 115700 N26000 lbf N/A 57400 N12900 lbf N/A STEEL N/A CAD
MM9321WI 3H DUH N/A Duplex N/A 101.600 mm N/A 145 mm5.7087 in N/A 22.23 mm0.8750 in N/A 44.46 mm1.75 in N/A 60 º N/A 115700 N26000 lbf N/A 57400 N12900 lbf N/A STEEL N/A CAD
MM9321WI 3H QUH N/A Quadruplex N/A 101.600 mm N/A 145 mm5.7087 in N/A 22.23 mm0.8750 in N/A 88.92 mm3.5 in N/A 60 º N/A 115700 N26000 lbf N/A 57400 N12900 lbf N/A STEEL N/A CAD
MM9321WI 3H SUM N/A Single N/A 101.600 mm N/A 145 mm5.7087 in N/A 22.23 mm0.8750 in N/A 22.23 mm0.875 in N/A 60 º N/A 115700 N26000 lbf N/A 57400 N12900 lbf N/A STEEL N/A CAD
MM9321WI 3H DUM N/A Duplex N/A 101.600 mm N/A 145 mm5.7087 in N/A 22.23 mm0.8750 in N/A 44.46 mm1.75 in N/A 60 º N/A 115700 N26000 lbf N/A 57400 N12900 lbf N/A STEEL N/A CAD
MM9321WI 3H QUM N/A Quadruplex N/A 101.600 mm N/A 145 mm5.7087 in N/A 22.23 mm0.8750 in N/A 88.92 mm3.5 in N/A 60 º N/A 115700 N26000 lbf N/A 57400 N12900 lbf N/A STEEL N/A CAD
MM9321WI 3H SUL N/A Single N/A 101.600 mm N/A 145 mm5.7087 in N/A 22.23 mm0.8750 in N/A 22.23 mm0.875 in N/A 60 º N/A 115700 N26000 lbf N/A 57400 N12900 lbf N/A STEEL N/A CAD
MM9321WI 3H DUL N/A Duplex N/A 101.600 mm N/A 145 mm5.7087 in N/A 22.23 mm0.8750 in N/A 44.46 mm1.75 in N/A 60 º N/A 115700 N26000 lbf N/A 57400 N12900 lbf N/A STEEL N/A CAD
MM9321WI 3H QUL N/A Quadruplex N/A 101.600 mm N/A 145 mm5.7087 in N/A 22.23 mm0.8750 in N/A 88.92 mm3.5 in N/A 60 º N/A 115700 N26000 lbf N/A 57400 N12900 lbf N/A STEEL N/A CAD
MM9326WI 6H SUH N/A Single N/A 127 mm N/A 180 mm7.0866 in N/A 22.23 mm0.8750 in N/A 22.23 mm0.875 in N/A 60 º N/A 186800 N42000 lbf N/A 94300 N21200 lbf N/A STEEL N/A CAD
MM9326WI 6H DUH N/A Duplex N/A 127 mm N/A 180 mm7.0866 in N/A 22.23 mm0.8750 in N/A 44.46 mm1.75 in N/A 60 º N/A 186800 N42000 lbf N/A 94300 N21200 lbf N/A STEEL N/A CAD
MM9326WI 6H QUH N/A Quadruplex N/A 127 mm N/A 180 mm7.0866 in N/A 22.23 mm0.8750 in N/A 88.92 mm3.5 in N/A 60 º N/A 186800 N42000 lbf N/A 94300 N21200 lbf N/A STEEL N/A CAD
MM9326WI 6H SUM N/A Single N/A 127 mm N/A 180 mm7.0866 in N/A 22.23 mm0.8750 in N/A 22.23 mm0.875 in N/A 60 º N/A 186800 N42000 lbf N/A 94300 N21200 lbf N/A STEEL N/A CAD
MM9326WI 6H DUM N/A Duplex N/A 127 mm N/A 180 mm7.0866 in N/A 22.23 mm0.8750 in N/A 44.46 mm1.75 in N/A 60 º N/A 186800 N42000 lbf N/A 94300 N21200 lbf N/A STEEL N/A CAD
MM9326WI 6H QUM N/A Quadruplex N/A 127 mm N/A 180 mm7.0866 in N/A 22.23 mm0.8750 in N/A 88.92 mm3.5 in N/A 60 º N/A 186800 N42000 lbf N/A 94300 N21200 lbf N/A STEEL N/A CAD
MM9326WI 6H SUL N/A Single N/A 127 mm N/A 180 mm7.0866 in N/A 22.23 mm0.8750 in N/A 22.23 mm0.875 in N/A 60 º N/A 186800 N42000 lbf N/A 94300 N21200 lbf N/A STEEL N/A CAD
MM9326WI 6H DUL N/A Duplex N/A 127 mm N/A 180 mm7.0866 in N/A 22.23 mm0.8750 in N/A 44.46 mm1.75 in N/A 60 º N/A 186800 N42000 lbf N/A 94300 N21200 lbf N/A STEEL N/A CAD
MM9326WI 6H QUL N/A Quadruplex N/A 127 mm N/A 180 mm7.0866 in N/A 22.23 mm0.8750 in N/A 88.92 mm3.5 in N/A 60 º N/A 186800 N42000 lbf N/A 94300 N21200 lbf N/A STEEL N/A CAD
Unit of Measure
1 2 3