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

MM9110K N/A Single N/A 50 mm N/A 80 mm3.1496 in N/A 16 mm0.6299 in N/A 24200 N5440 lbf N/A 16700 N3750 lbf N/A 14900 rpm N/A 29800 rpm N/A STEEL N/A CAD
MMC9110K N/A Single N/A 50 mm N/A 80 mm3.1496 in N/A 16 mm0.6299 in N/A 24200 N5440 lbf N/A 14700 N3310 lbf N/A 17900 rpm N/A 35800 rpm N/A Ceramic N/A CAD
MM210K N/A Single N/A 50 mm N/A 90 mm3.5433 in N/A 20 mm0.7874 in N/A 38900 N8740 lbf N/A 23100 N5200 lbf N/A 14600 rpm N/A 29200 rpm N/A STEEL N/A CAD
MMC210K N/A Single N/A 50 mm N/A 90 mm3.5433 in N/A 20 mm0.7874 in N/A 38900 N8740 lbf N/A 20600 N4640 lbf N/A 17500 rpm N/A 35000 rpm N/A Ceramic N/A CAD
MM310K N/A Single N/A 50 mm N/A 110 mm4.3307 in N/A 27 mm1.063 in N/A 68600 N15400 lbf N/A 37900 N8510 lbf N/A 13800 rpm N/A 27600 rpm N/A STEEL N/A CAD
MMC310K N/A Single N/A 50 mm N/A 110 mm4.3307 in N/A 27 mm1.063 in N/A 68600 N15400 lbf N/A 33700 N7570 lbf N/A 16560 rpm N/A 33120 rpm N/A Ceramic N/A CAD
MM9311K N/A Single N/A 55 mm N/A 80 mm3.1496 in N/A 13 mm0.5118 in N/A 18400 N4140 lbf N/A 14100 N3160 lbf N/A N/A N/A STEEL N/A CAD
MM9111K N/A Single N/A 55 mm N/A 90 mm3.5433 in N/A 18 mm0.7087 in N/A 31400 N7050 lbf N/A 21400 N4800 lbf N/A 13500 rpm N/A 27000 rpm N/A STEEL N/A CAD
MMC9111K N/A Single N/A 55 mm N/A 90 mm3.5433 in N/A 18 mm0.7087 in N/A 31400 N7050 lbf N/A 18900 N4250 lbf N/A 16200 rpm N/A 32400 rpm N/A Ceramic N/A CAD
MM211K N/A Single N/A 55 mm N/A 100 mm3.937 in N/A 21 mm0.8268 in N/A 48100 N10800 lbf N/A 29100 N6550 lbf N/A 13300 rpm N/A 26600 rpm N/A STEEL N/A CAD
MMC211K N/A Single N/A 55 mm N/A 100 mm3.937 in N/A 21 mm0.8268 in N/A 48100 N10800 lbf N/A 26000 N5850 lbf N/A 16000 rpm N/A 32000 rpm N/A Ceramic N/A CAD
MM311K N/A Single N/A 55 mm N/A 120 mm4.7244 in N/A 29 mm1.1417 in N/A 79300 N17800 lbf N/A 44600 N10000 lbf N/A 12500 rpm N/A 25000 rpm N/A STEEL N/A CAD
MMC311K N/A Single N/A 55 mm N/A 120 mm4.7244 in N/A 29 mm1.1417 in N/A 79300 N17800 lbf N/A 39700 N8920 lbf N/A 15000 rpm N/A 30000 rpm N/A Ceramic N/A CAD
MM9112K N/A Single N/A 60 mm N/A 95 mm3.7402 in N/A 18 mm0.7087 in N/A 32600 N7340 lbf N/A 23200 N5210 lbf N/A 12500 rpm N/A 25000 rpm N/A STEEL N/A CAD
MMC9112K N/A Single N/A 60 mm N/A 95 mm3.7402 in N/A 18 mm0.7087 in N/A 32600 N7340 lbf N/A 20600 N4630 lbf N/A 15000 rpm N/A 30000 rpm N/A Ceramic N/A CAD
MM212K N/A Single N/A 60 mm N/A 110 mm4.3307 in N/A 22 mm0.8661 in N/A 58200 N13100 lbf N/A 36300 N8150 lbf N/A 12100 rpm N/A 24200 rpm N/A STEEL N/A CAD
MMC212K N/A Single N/A 60 mm N/A 110 mm4.3307 in N/A 22 mm0.8661 in N/A 58200 N13100 lbf N/A 32000 N7190 lbf N/A 14500 rpm N/A 29000 rpm N/A Ceramic N/A CAD
MM312K N/A Single N/A 60 mm N/A 130 mm5.1181 in N/A 31 mm1.2205 in N/A 90700 N20400 lbf N/A 51800 N11700 lbf N/A 11500 rpm N/A 23000 rpm N/A STEEL N/A CAD
MMC312K N/A Single N/A 60 mm N/A 130 mm5.1181 in N/A 31 mm1.2205 in N/A 90700 N20400 lbf N/A 46100 N10400 lbf N/A 13800 rpm N/A 27600 rpm N/A Ceramic N/A CAD
MM9113K N/A Single N/A 65 mm N/A 100 mm3.937 in N/A 18 mm0.7087 in N/A 33900 N7610 lbf N/A 25200 N5650 lbf N/A 11600 rpm N/A 23200 rpm N/A STEEL N/A CAD
MMC9113K N/A Single N/A 65 mm N/A 100 mm3.937 in N/A 18 mm0.7087 in N/A 33900 N7610 lbf N/A 22400 N5030 lbf N/A 13900 rpm N/A 27800 rpm N/A Ceramic N/A CAD
MM213K N/A Single N/A 65 mm N/A 120 mm4.7244 in N/A 23 mm0.9055 in N/A 63400 N14300 lbf N/A 40000 N9000 lbf N/A 11100 rpm N/A 22200 rpm N/A STEEL N/A CAD
MMC213K N/A Single N/A 65 mm N/A 120 mm4.7244 in N/A 23 mm0.9055 in N/A 63400 N14300 lbf N/A 35600 N8000 lbf N/A 13300 rpm N/A 26600 rpm N/A Ceramic N/A CAD
MM313K N/A Single N/A 65 mm N/A 140 mm5.5118 in N/A 33 mm1.2992 in N/A 102700 N23100 lbf N/A 59700 N13400 lbf N/A 10700 rpm N/A 21400 rpm N/A STEEL N/A CAD
MMC313K N/A Single N/A 65 mm N/A 140 mm5.5118 in N/A 33 mm1.2992 in N/A 102700 N23100 lbf N/A 53100 N11900 lbf N/A 12840 rpm N/A 25680 rpm N/A Ceramic N/A CAD
Unit of Measure
1 2 3 4 5