High-precision bearings supporting machine tool spindles for rotational accuracy and load capacity.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Speed Rating | Up to 2,000,000 dn | |
| Bore Diameter | 10-200 mm | |
| Load Capacity | Dynamic: 10-100 kN, Static: 5-50 kN | |
| Precision Class | P4, P2, ABEC-7/9 | |
| Lubrication Interval | 500-2000 hours | |
| Operating Temperature | -30°C to +150°C |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
The primary rotating shaft that transmits power and motion to cutting tools or workpieces in industrial machinery.
The motorized spindle assembly that holds and drives cutting tools for multi-axis material removal operations in CNC routing systems.
The main rotating assembly of a CNC lathe that houses the spindle and drive system.
A practical evidence checklist for RFQ preparation and supplier evaluation.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
Manufacturer profiles associated with Spindle Bearings.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
Angular contact ball bearings (most common), cylindrical roller bearings, and tapered roller bearings, selected based on speed, load, and precision requirements.
Preload eliminates internal clearance, increasing stiffness and rotational accuracy but requires careful adjustment to prevent overheating and reduced bearing life.
Grease lubrication for moderate speeds, oil-air or oil-mist systems for high-speed applications, and minimal quantity lubrication (MQL) for precision environments.
Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.