Timken MM9108K Ball Bearing P4S Super Precision High Speed Bearing For Precision Machinery And Industrial Equipment With 68 Millimeter Outer Diameter 62.2 Millimeter Backing Ring 11600 N Static Radial Rating And 36400 Rpm Oil Speed

Timken MM9108K: Single 68mm P4S precision ball bearing
✔️ 68mm OD, 40mm ID, 45.7mm backing, 36,400 rpm oil

The Timken MM9108K is a high-precision sealed ball bearing designed for precision machinery and industrial equipment. Used in CNC spindles, robotics, and automated manufacturing lines, it delivers reliable performance at high speeds.

Dimension	mm	inches
Outer diameter	68	2.677
Inner bore	40	1.5748
Width	15	0.5906
Inner ring backing diameter	45.7	1.800
Outer ring backing diameter	62.2	2.450

✅ ISO P4S (ABEC 7/9) precision class
✅ Static radial rating: 2600 lbf per row (11600 N)
✅ Dynamic radial rating: 4180 lbf per row (16900 N)
✅ Outer diameter 68 mm (2.677 in), inner bore 40 mm (1.5748 in), width 15 mm (0.5906 in)

💡 What is a sealed ball bearing used for in precision machinery?

Handy for keeping high-speed shafts aligned and running smoothly in industrial setups.

- High-precision shaft support in CNC spindles - Maintains tight tolerances in robotic guides and automation lines - Works with grease or oil lubrication to extend life