Fafnir® Spindle Deep Grove Ball Bearings (9100K, 200K, 300K) On The Timken Company

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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d - Bore (mm)

d - Bore (in)

D - Outer Diameter (mm)

D - Outer Diameter (in)

Bearing Width (mm)

Bearing Width (in)

Ce - Dynamic Radial Rating (N)

Ce - Dynamic Radial Rating (lbf)

Limiting Speed (Grease) (rpm)

Limiting Speed (Oil) (rpm)

Timken Part Number	d - Bore	D - Outer Diameter	Bearing Width	Ce - Dynamic Radial Rating	C0 - Static Radial Rating	Limiting Speed (Grease)	Limiting Speed (Oil)	Ball Type	Cage Type	CAD

MM9301K	N/A 12 mm0.4724 in	N/A 24.000 mm0.9449 in	N/A 6.000 mm0.2362 in	N/A 3700 N830 lbf	N/A 1610 N360 lbf	N/A	N/A	N/A STEEL	N/A CR - Phenolic Inner Land Riding Cage	N/A
MM9101K	N/A 12 mm0.4724 in	N/A 28.000 mm1.1024 in	N/A 8.000 mm0.3150 in	N/A 5670 N1280 lbf	N/A 2400 N540 lbf	N/A 52800 rpm	N/A 105600 rpm	N/A STEEL	N/A CR - Phenolic Inner Land Riding Cage	N/A
MMC9101K	N/A 12 mm0.4724 in	N/A 28.000 mm1.1024 in	N/A 8.000 mm0.3150 in	N/A 5670 N1280 lbf	N/A 2130 N480 lbf	N/A 63400 rpm	N/A 126800 rpm	N/A Ceramic	N/A CR - Phenolic Inner Land Riding Cage	N/A
MM201K	N/A 12 mm0.4724 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MMC201K	N/A 12 mm0.4724 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MM9302K	N/A 15 mm0.5906 in	N/A 28.000 mm1.1024 in	N/A 7.000 mm0.2756 in	N/A 3950 N890 lbf	N/A 1890 N420 lbf	N/A	N/A	N/A STEEL	N/A CR - Phenolic Inner Land Riding Cage	N/A
MM202K	N/A 15 mm0.5906 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MMC202K	N/A 15 mm0.5906 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MM9103K	N/A 17 mm0.6693 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MMC9103K	N/A 17 mm0.6693 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MM203K	N/A 17 mm0.6693 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MMC203K	N/A 17 mm0.6693 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MM9104K	N/A 20 mm0.7874 in	N/A 42.000 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 CR - Phenolic Inner Land Riding Cage	N/A
MMC9104K	N/A 20 mm0.7874 in	N/A 42.000 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 CR - Phenolic Inner Land Riding Cage	N/A
MM204K	N/A 20 mm0.7874 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MMC204K	N/A 20 mm0.7874 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MM9305K	N/A 25 mm0.9843 in	N/A 42.000 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 CR - Phenolic Inner Land Riding Cage	N/A
MM9105K	N/A 25 mm0.9843 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MMC9105K	N/A 25 mm0.9843 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MM205K	N/A 25 mm0.9843 in	N/A 52.000 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 CR - Phenolic Inner Land Riding Cage	N/A
MMC205K	N/A 25 mm0.9843 in	N/A 52.000 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 CR - Phenolic Inner Land Riding Cage	N/A
MM305K	N/A 25 mm0.9843 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MMC305K	N/A 25 mm0.9843 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MM9306K	N/A 30 mm1.1811 in	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 CR - Phenolic Inner Land Riding Cage	N/A
MM9106K	N/A 30 mm1.1811 in	N/A 55.000 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 CR - Phenolic Inner Land Riding Cage	N/A