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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Radial ball bearings consist of an inner and outer ring with a cage containing a complement of precision balls. The standard Conrad-type bearing has a deep-groove construction capable of handling radial and axial loads from either direction in versatile designs that permit relatively high-speed operation.

In addition to standard single-row deep groove bearings, Timken offers special designs, including a maximum capacity series and an extra large (XLS) radial series bearing.

Size range: 3 mm - 600 mm (0.12 in. - 23.62 in.) bore
Fafnir® Spindle Deep Grove Ball Bearings (9100K, 200K, 300K)
Unit of Measure
1 2 3 4 5 

Part Number

Rows per Set

d - Bore

D - Outer Diameter

Bearing Width

Ce - Dynamic Radial Rating (per row)

C0 - Static Radial Rating (per row)

Limiting Speed (Grease) (per row)

Limiting Speed (Oil)

Ball Type

CADPartID

MM9301K N/A Single N/A 12 mm N/A 24 mm0.9449 in N/A 6 mm0.2362 in N/A 3700 N830 lbf N/A 1610 N360 lbf N/A N/A N/A STEEL N/A CAD
MM9101K N/A Single N/A 12 mm N/A 28 mm1.1024 in N/A 8 mm0.315 in N/A 5670 N1280 lbf N/A 2400 N540 lbf N/A 52800 rpm N/A 105600 rpm N/A STEEL N/A CAD
MMC9101K N/A Single N/A 12 mm N/A 28 mm1.1024 in N/A 8 mm0.315 in N/A 5670 N1280 lbf N/A 2130 N480 lbf N/A 63400 rpm N/A 126800 rpm N/A Ceramic N/A CAD
MM201K N/A Single N/A 12 mm N/A 32 mm1.2598 in N/A 10 mm0.3937 in N/A 7550 N1700 lbf N/A 3000 N680 lbf N/A 52200 rpm N/A 104400 rpm N/A STEEL N/A CAD
MMC201K N/A Single N/A 12 mm N/A 32 mm1.2598 in N/A 10 mm0.3937 in N/A 7550 N1700 lbf N/A 2710 N610 lbf N/A 62600 rpm N/A 125200 rpm N/A Ceramic N/A CAD
MM9302K N/A Single N/A 15 mm N/A 28 mm1.1024 in N/A 7 mm0.2756 in N/A 3950 N890 lbf N/A 1890 N420 lbf N/A N/A N/A STEEL N/A CAD
MM202K N/A Single N/A 15 mm N/A 35 mm1.378 in N/A 11 mm0.4331 in N/A 8450 N1900 lbf N/A 3700 N830 lbf N/A 44000 rpm N/A 88000 rpm N/A STEEL N/A CAD
MMC202K N/A Single N/A 15 mm N/A 35 mm1.378 in N/A 11 mm0.4331 in N/A 8450 N1900 lbf N/A 3290 N740 lbf N/A 52800 rpm N/A 105600 rpm N/A Ceramic N/A CAD
MM9103K N/A Single N/A 17 mm N/A 35 mm1.378 in N/A 10 mm0.3937 in N/A 6660 N1500 lbf N/A 3300 N735 lbf N/A 39600 rpm N/A 79200 rpm N/A STEEL N/A CAD
MMC9103K N/A Single N/A 17 mm N/A 35 mm1.378 in N/A 10 mm0.3937 in N/A 6660 N1500 lbf N/A 2890 N650 lbf N/A 47500 rpm N/A 95000 rpm N/A Ceramic N/A CAD
MM203K N/A Single N/A 17 mm N/A 40 mm1.5748 in N/A 12 mm0.4724 in N/A 10600 N2380 lbf N/A 4700 N1060 lbf N/A 38500 rpm N/A 77000 rpm N/A STEEL N/A CAD
MMC203K N/A Single N/A 17 mm N/A 40 mm1.5748 in N/A 12 mm0.4724 in N/A 10600 N2380 lbf N/A 4230 N950 lbf N/A 46200 rpm N/A 92400 rpm N/A Ceramic N/A CAD
MM9104K N/A Single N/A 20 mm N/A 42 mm1.6535 in N/A 12 mm0.4724 in N/A 9620 N2160 lbf N/A 4400 N1000 lbf N/A 34000 rpm N/A 68000 rpm N/A STEEL N/A CAD
MMC9104K N/A Single N/A 20 mm N/A 42 mm1.6535 in N/A 12 mm0.4724 in N/A 9620 N2160 lbf N/A 3980 N890 lbf N/A 40800 rpm N/A 81600 rpm N/A Ceramic N/A CAD
MM204K N/A Single N/A 20 mm N/A 47 mm1.8504 in N/A 14 mm0.5512 in N/A 14200 N3190 lbf N/A 6500 N1460 lbf N/A 32800 rpm N/A 65600 rpm N/A STEEL N/A CAD
MMC204K N/A Single N/A 20 mm N/A 47 mm1.8504 in N/A 14 mm0.5512 in N/A 14200 N3190 lbf N/A 5860 N1320 lbf N/A 39400 rpm N/A 78800 rpm N/A Ceramic N/A CAD
MM9305K N/A Single N/A 25 mm N/A 42 mm1.6535 in N/A 9 mm0.3543 in N/A 7790 N1750 lbf N/A 4000 N900 lbf N/A N/A N/A STEEL N/A CAD
MM9105K N/A Single N/A 25 mm N/A 47 mm1.8504 in N/A 12 mm0.4724 in N/A 11200 N2510 lbf N/A 5900 N1320 lbf N/A 28300 rpm N/A 56600 rpm N/A STEEL N/A CAD
MMC9105K N/A Single N/A 25 mm N/A 47 mm1.8504 in N/A 12 mm0.4724 in N/A 11200 N2510 lbf N/A 5210 N1170 lbf N/A 34000 rpm N/A 68000 rpm N/A Ceramic N/A CAD
MM205K N/A Single N/A 25 mm N/A 52 mm2.0472 in N/A 15 mm0.5906 in N/A 15500 N3490 lbf N/A 7800 N1760 lbf N/A 27400 rpm N/A 54800 rpm N/A STEEL N/A CAD
MMC205K N/A Single N/A 25 mm N/A 52 mm2.0472 in N/A 15 mm0.5906 in N/A 15500 N3490 lbf N/A 6980 N1570 lbf N/A 32900 rpm N/A 65800 rpm N/A Ceramic N/A CAD
MM305K N/A Single N/A 25 mm N/A 62 mm2.4409 in N/A 17 mm0.6693 in N/A 26200 N5890 lbf N/A 12100 N2730 lbf N/A 26500 rpm N/A 53000 rpm N/A STEEL N/A CAD
MMC305K N/A Single N/A 25 mm N/A 62 mm2.4409 in N/A 17 mm0.6693 in N/A 26200 N5890 lbf N/A 10800 N2430 lbf N/A 31800 rpm N/A 63600 rpm N/A Ceramic N/A CAD
MM9306K N/A Single N/A 30 mm N/A 47 mm1.8504 in N/A 9 mm0.3543 in N/A 8050 N1810 lbf N/A 5020 N1130 lbf N/A N/A N/A STEEL N/A CAD
MM9106K N/A Single N/A 30 mm N/A 55 mm2.1654 in N/A 13 mm0.5118 in N/A 14700 N3300 lbf N/A 8300 N1860 lbf N/A 23300 rpm N/A 46600 rpm N/A STEEL N/A CAD
Unit of Measure
1 2 3 4 5