Timken MM308K Ball Bearing P4S Super Precision Pro Grade High Speed Radial Bearing For Precision Machinery With Top Shelf Performance 0.9055 In C0 Static Rating 22800 N 17100 RPM Outer Diameter 90 Mm Inner Ring 1.940 In

Timken MM308K High-Precision Ball Bearing 90mm OD
✔️ ISO P4S, ABEC 7/9, 90 mm OD, 40 mm ID, 23 mm width, single bearing

The Timken MM308K is a high-precision radial ball bearing designed for precision machinery. This single-row bearing is built for tight tolerances and high-speed use in CNC spindles, robotic axes, and precision gear drives. Outer diameter 90 mm (3.5433 in), inner diameter 40.0 mm (1.5748 in), width 23.0 mm (0.9055 in).

✅ Outer diameter: 90 mm (3.5433 in)
✅ Inner diameter: 40.0 mm (1.5748 in)
✅ Width: 23.0 mm (0.9055 in)
✅ Inner ring backing diameter: 49.3 mm (1.940 in)
✅ Outer ring backing diameter: 81.3 mm (3.200 in)
✅ Static radial rating: 5120 lbf per row
✅ Dynamic radial rating: 10100 lbf per row
✅ Precision class: ISO P4S (ABEC 7/9)
✅ Cage: CR - Phenolic Inner Land Riding
✅ Limiting speed (grease): 17100 rpm; (oil): 34200 rpm
✅ Rows per set: Single

💡 What is a high-precision ball bearing used for in precision equipment? This handy, precise part keeps motion smooth and accurate in demanding setups. - Handy for CNC spindles and robotic axes in tight tolerance systems - Reduces friction, heat, and wear at high speeds - Fits standard mounts with ISO P4S tolerances - Delivers long life with a phenolic cage in tough environments