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

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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

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Unit of Measure

Items	MM9301K Fafnir® Spindle Deep Groove Ball Bearings (9100K, 200K, 300K)	MM9101K Fafnir® Spindle Deep Groove Ball Bearings (9100K, 200K, 300K)	MMC9101K Fafnir® Spindle Deep Groove Ball Bearings (9100K, 200K, 300K)	MM201K Fafnir® Spindle Deep Groove Ball Bearings (9100K, 200K, 300K)	MMC201K Fafnir® Spindle Deep Groove Ball Bearings (9100K, 200K, 300K)
Design Units	N/A Metric
Rows per Set	N/A Single
d - Bore	N/A 12 mm
D - Outer Diameter	N/A 0.9449 in24 mm	N/A 1.1024 in28 mm	N/A 1.1024 in28 mm	N/A 1.2598 in32 mm	N/A 1.2598 in32 mm
Bearing Width	N/A 0.2362 in6 mm	N/A 0.3150 in8 mm	N/A 0.3150 in8 mm	N/A 0.3937 in10 mm	N/A 0.3937 in10 mm
Ce - Dynamic Radial Rating (per row)¹	N/A 830 lbf3700 N	N/A 1280 lbf5670 N	N/A 1280 lbf5670 N	N/A 1700 lbf7550 N	N/A 1700 lbf7550 N
C0 - Static Radial Rating (per row)	N/A 360 lbf1610 N	N/A 540 lbf2400 N	N/A 480 lbf2130 N	N/A 680 lbf3000 N	N/A 610 lbf2710 N
Limiting Speed (Grease) (per row)	N/A	N/A 52800 rpm	N/A 63400 rpm	N/A 52200 rpm	N/A 62600 rpm
Limiting Speed (Oil)	N/A	N/A 105600 rpm	N/A 126800 rpm	N/A 104400 rpm	N/A 125200 rpm
Ball Type	N/A STEEL	N/A STEEL	N/A Ceramic	N/A STEEL	N/A Ceramic
Cage Type	N/A CR - Phenolic Inner Land Riding Cage
¹ Based on 10⁶ revolutions of calculated fatigue life.