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  • Fafnir® Spindle Deep Grove Ball Bearings (9100K, 200K, 300K)
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
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Bore (d) (mm)

O.D. (D) (in)

O.D. (D) (mm)

Bearing Width (in)

Bearing Width (mm)

Dynamic Radial Load Rating - 1M Revs (C1) (lbf)

Dynamic Radial Load Rating - 1M Revs (C1) (N)

Limiting Speed - Grease (rpm)

Limiting Speed - Oil (rpm)

Part Number

Rows per Set

Bore (d)

O.D. (D)

Bearing Width

Dynamic Radial Load Rating - 1M Revs (C1)

Static Radial Load Rating (C0)

Limiting Speed - Grease

Limiting Speed - Oil

Ball Type

CADPartID

MM9301K N/A Single N/A 12 mm N/A 0.9449 in24 mm N/A 0.2362 in6 mm N/A 830 lbf3700 N N/A 360 lbf1610 N N/A N/A N/A STEEL N/A CAD Icon (for items table)
MM9101K N/A Single N/A 12 mm N/A 1.1024 in28 mm N/A 0.3150 in8 mm N/A 1280 lbf5670 N N/A 540 lbf2400 N N/A 52800 rpm N/A 105600 rpm N/A STEEL N/A CAD Icon (for items table)
MMC9101K N/A Single N/A 12 mm N/A 1.1024 in28 mm N/A 0.3150 in8 mm N/A 1280 lbf5670 N N/A 480 lbf2130 N N/A 63400 rpm N/A 126800 rpm N/A Ceramic N/A CAD Icon (for items table)
MM201K N/A Single N/A 12 mm N/A 1.2598 in32 mm N/A 0.3937 in10 mm N/A 1700 lbf7550 N N/A 680 lbf3000 N N/A 52200 rpm N/A 104400 rpm N/A STEEL N/A CAD Icon (for items table)
MMC201K N/A Single N/A 12 mm N/A 1.2598 in32 mm N/A 0.3937 in10 mm N/A 1700 lbf7550 N N/A 610 lbf2710 N N/A 62600 rpm N/A 125200 rpm N/A Ceramic N/A CAD Icon (for items table)
MM9302K N/A Single N/A 15 mm N/A 1.1024 in28 mm N/A 0.2756 in7 mm N/A 890 lbf3950 N N/A 420 lbf1890 N N/A N/A N/A STEEL N/A CAD Icon (for items table)
MM202K N/A Single N/A 15 mm N/A 1.378 in35 mm N/A 0.4331 in11 mm N/A 1900 lbf8450 N N/A 830 lbf3700 N N/A 44000 rpm N/A 88000 rpm N/A STEEL N/A CAD Icon (for items table)
MMC202K N/A Single N/A 15 mm N/A 1.378 in35 mm N/A 0.4331 in11 mm N/A 1900 lbf8450 N N/A 740 lbf3290 N N/A 52800 rpm N/A 105600 rpm N/A Ceramic N/A CAD Icon (for items table)
MM9103K N/A Single N/A 17 mm N/A 1.378 in35 mm N/A 0.3937 in10 mm N/A 1500 lbf6660 N N/A 735 lbf3300 N N/A 39600 rpm N/A 79200 rpm N/A STEEL N/A CAD Icon (for items table)
MMC9103K N/A Single N/A 17 mm N/A 1.378 in35 mm N/A 0.3937 in10 mm N/A 1500 lbf6660 N N/A 650 lbf2890 N N/A 47500 rpm N/A 95000 rpm N/A Ceramic N/A CAD Icon (for items table)
MM203K N/A Single N/A 17 mm N/A 1.5748 in40 mm N/A 0.4724 in12 mm N/A 2380 lbf10600 N N/A 1060 lbf4700 N N/A 38500 rpm N/A 77000 rpm N/A STEEL N/A CAD Icon (for items table)
MMC203K N/A Single N/A 17 mm N/A 1.5748 in40 mm N/A 0.4724 in12 mm N/A 2380 lbf10600 N N/A 950 lbf4230 N N/A 46200 rpm N/A 92400 rpm N/A Ceramic N/A CAD Icon (for items table)
MM9104K N/A Single N/A 20 mm N/A 1.6535 in42 mm N/A 0.4724 in12 mm N/A 2160 lbf9620 N N/A 1000 lbf4400 N N/A 34000 rpm N/A 68000 rpm N/A STEEL N/A CAD Icon (for items table)
MMC9104K N/A Single N/A 20 mm N/A 1.6535 in42 mm N/A 0.4724 in12 mm N/A 2160 lbf9620 N N/A 890 lbf3980 N N/A 40800 rpm N/A 81600 rpm N/A Ceramic N/A CAD Icon (for items table)
MM204K N/A Single N/A 20 mm N/A 1.8504 in47 mm N/A 0.5512 in14 mm N/A 3190 lbf14200 N N/A 1460 lbf6500 N N/A 32800 rpm N/A 65600 rpm N/A STEEL N/A CAD Icon (for items table)
MMC204K N/A Single N/A 20 mm N/A 1.8504 in47 mm N/A 0.5512 in14 mm N/A 3190 lbf14200 N N/A 1320 lbf5860 N N/A 39400 rpm N/A 78800 rpm N/A Ceramic N/A CAD Icon (for items table)
MM9305K N/A Single N/A 25 mm N/A 1.6535 in42 mm N/A 0.3543 in9 mm N/A 1750 lbf7790 N N/A 900 lbf4000 N N/A N/A N/A STEEL N/A CAD Icon (for items table)
MM9105K N/A Single N/A 25 mm N/A 1.8504 in47 mm N/A 0.4724 in12 mm N/A 2510 lbf11200 N N/A 1320 lbf5900 N N/A 28300 rpm N/A 56600 rpm N/A STEEL N/A CAD Icon (for items table)
MMC9105K N/A Single N/A 25 mm N/A 1.8504 in47 mm N/A 0.4724 in12 mm N/A 2510 lbf11200 N N/A 1170 lbf5210 N N/A 34000 rpm N/A 68000 rpm N/A Ceramic N/A CAD Icon (for items table)
MM205K N/A Single N/A 25 mm N/A 2.0472 in52 mm N/A 0.5906 in15 mm N/A 3490 lbf15500 N N/A 1760 lbf7800 N N/A 27400 rpm N/A 54800 rpm N/A STEEL N/A CAD Icon (for items table)
MMC205K N/A Single N/A 25 mm N/A 2.0472 in52 mm N/A 0.5906 in15 mm N/A 3490 lbf15500 N N/A 1570 lbf6980 N N/A 32900 rpm N/A 65800 rpm N/A Ceramic N/A CAD Icon (for items table)
MM305K N/A Single N/A 25 mm N/A 2.4409 in62 mm N/A 0.6693 in17 mm N/A 5890 lbf26200 N N/A 2730 lbf12100 N N/A 26500 rpm N/A 53000 rpm N/A STEEL N/A CAD Icon (for items table)
MMC305K N/A Single N/A 25 mm N/A 2.4409 in62 mm N/A 0.6693 in17 mm N/A 5890 lbf26200 N N/A 2430 lbf10800 N N/A 31800 rpm N/A 63600 rpm N/A Ceramic N/A CAD Icon (for items table)
MM9306K N/A Single N/A 30 mm N/A 1.8504 in47 mm N/A 0.3543 in9 mm N/A 1810 lbf8050 N N/A 1130 lbf5020 N N/A N/A N/A STEEL N/A CAD Icon (for items table)
MM9106K N/A Single N/A 30 mm N/A 2.1654 in55 mm N/A 0.5118 in13 mm N/A 3300 lbf14700 N N/A 1860 lbf8300 N N/A 23300 rpm N/A 46600 rpm N/A STEEL N/A CAD Icon (for items table)
MMC9106K N/A Single N/A 30 mm N/A 2.1654 in55 mm N/A 0.5118 in13 mm N/A 3300 lbf14700 N N/A 1660 lbf7390 N N/A 28000 rpm N/A 56000 rpm N/A Ceramic N/A CAD Icon (for items table)
MM206K N/A Single N/A 30 mm N/A 2.4409 in62 mm N/A 0.6299 in16 mm N/A 4850 lbf21600 N N/A 2550 lbf11300 N N/A 23000 rpm N/A 46000 rpm N/A STEEL N/A CAD Icon (for items table)
MMC206K N/A Single N/A 30 mm N/A 2.4409 in62 mm N/A 0.6299 in16 mm N/A 4850 lbf21600 N N/A 2250 lbf10000 N N/A 27600 rpm N/A 55200 rpm N/A Ceramic N/A CAD Icon (for items table)
MM306K N/A Single N/A 30 mm N/A 2.8346 in72 mm N/A 0.748 in19 mm N/A 7440 lbf33100 N N/A 3560 lbf15800 N N/A 22300 rpm N/A 44600 rpm N/A STEEL N/A CAD Icon (for items table)
MMC306K N/A Single N/A 30 mm N/A 2.8346 in72 mm N/A 0.748 in19 mm N/A 7440 lbf33100 N N/A 3160 lbf14100 N N/A 26760 rpm N/A 53520 rpm N/A Ceramic N/A CAD Icon (for items table)
MM9307K N/A Single N/A 35 mm N/A 2.1654 in55 mm N/A 0.3937 in10 mm N/A 2380 lbf10600 N N/A 1530 lbf6830 N N/A N/A N/A STEEL N/A CAD Icon (for items table)
MM9107K N/A Single N/A 35 mm N/A 2.4409 in62 mm N/A 0.5512 in14 mm N/A 3980 lbf17700 N N/A 2320 lbf10300 N N/A 20700 rpm N/A 41400 rpm N/A STEEL N/A CAD Icon (for items table)
MMC9107K N/A Single N/A 35 mm N/A 2.4409 in62 mm N/A 0.5512 in14 mm N/A 3980 lbf17700 N N/A 2060 lbf9150 N N/A 24800 rpm N/A 49600 rpm N/A Ceramic N/A CAD Icon (for items table)
MM207K N/A Single N/A 35 mm N/A 2.8346 in72 mm N/A 0.6693 in17 mm N/A 6400 lbf28500 N N/A 3450 lbf15300 N N/A 19800 rpm N/A 39600 rpm N/A STEEL N/A CAD Icon (for items table)
MMC207K N/A Single N/A 35 mm N/A 2.8346 in72 mm N/A 0.6693 in17 mm N/A 6400 lbf28500 N N/A 3060 lbf13600 N N/A 23800 rpm N/A 47600 rpm N/A Ceramic N/A CAD Icon (for items table)
MM307K N/A Single N/A 35 mm N/A 3.1496 in80 mm N/A 0.8268 in21 mm N/A 8340 lbf37100 N N/A 4120 lbf18300 N N/A 19400 rpm N/A 38800 rpm N/A STEEL N/A CAD Icon (for items table)
MMC307K N/A Single N/A 35 mm N/A 3.1496 in80 mm N/A 0.8268 in21 mm N/A 8340 lbf37100 N N/A 3670 lbf16300 N N/A 23280 rpm N/A 46560 rpm N/A Ceramic N/A CAD Icon (for items table)
MM9308K N/A Single N/A 40 mm N/A 2.4409 in62 mm N/A 0.4724 in12 mm N/A 3030 lbf13500 N N/A 2000 lbf8900 N N/A N/A N/A STEEL N/A CAD Icon (for items table)
MM9108K N/A Single N/A 40 mm N/A 2.6772 in68 mm N/A 0.5906 in15 mm N/A 4180 lbf18600 N N/A 2600 lbf11600 N N/A 18200 rpm N/A 36400 rpm N/A STEEL N/A CAD Icon (for items table)
MMC9108K N/A Single N/A 40 mm N/A 2.6772 in68 mm N/A 0.5906 in15 mm N/A 4180 lbf18600 N N/A 2310 lbf10300 N N/A 21800 rpm N/A 43600 rpm N/A Ceramic N/A CAD Icon (for items table)
MM208K N/A Single N/A 40 mm N/A 3.1496 in80 mm N/A 0.7087 in18 mm N/A 8130 lbf36200 N N/A 4500 lbf20000 N N/A 17700 rpm N/A 35400 rpm N/A STEEL N/A CAD Icon (for items table)
MMC208K N/A Single N/A 40 mm N/A 3.1496 in80 mm N/A 0.7087 in18 mm N/A 8130 lbf36200 N N/A 3970 lbf17700 N N/A 21200 rpm N/A 42400 rpm N/A Ceramic N/A CAD Icon (for items table)
MM308K N/A Single N/A 40 mm N/A 3.5433 in90 mm N/A 0.9055 in23 mm N/A 10100 lbf45000 N N/A 5120 lbf22800 N N/A 17100 rpm N/A 34200 rpm N/A STEEL N/A CAD Icon (for items table)
MMC308K N/A Single N/A 40 mm N/A 3.5433 in90 mm N/A 0.9055 in23 mm N/A 10100 lbf45000 N N/A 4560 lbf20300 N N/A 20520 rpm N/A 41040 rpm N/A Ceramic N/A CAD Icon (for items table)
MM9109K N/A Single N/A 45 mm N/A 2.9528 in75 mm N/A 0.6299 in16 mm N/A 5230 lbf23300 N N/A 3400 lbf15100 N N/A 16300 rpm N/A 32600 rpm N/A STEEL N/A CAD Icon (for items table)
MMC9109K N/A Single N/A 45 mm N/A 2.9528 in75 mm N/A 0.6299 in16 mm N/A 5230 lbf23300 N N/A 3030 lbf13500 N N/A 19600 rpm N/A 39200 rpm N/A Ceramic N/A CAD Icon (for items table)
MM209K N/A Single N/A 45 mm N/A 3.3465 in85 mm N/A 0.748 in19 mm N/A 8160 lbf36300 N N/A 4550 lbf20200 N N/A 16000 rpm N/A 32000 rpm N/A STEEL N/A CAD Icon (for items table)
MMC209K N/A Single N/A 45 mm N/A 3.3465 in85 mm N/A 0.748 in19 mm N/A 8160 lbf36300 N N/A 4090 lbf18200 N N/A 19200 rpm N/A 38400 rpm N/A Ceramic N/A CAD Icon (for items table)
MM309K N/A Single N/A 45 mm N/A 3.937 in100 mm N/A 0.9843 in25 mm N/A 13200 lbf58500 N N/A 7120 lbf31700 N N/A 15200 rpm N/A 30400 rpm N/A STEEL N/A CAD Icon (for items table)
MMC309K N/A Single N/A 45 mm N/A 3.937 in100 mm N/A 0.9843 in25 mm N/A 13200 lbf58500 N N/A 6340 lbf28200 N N/A 18240 rpm N/A 36480 rpm N/A Ceramic N/A CAD Icon (for items table)
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