Support bearings are precision components that provide radial and axial support for rotating shafts in lead screw assemblies, ensuring smooth linear motion and load distribution.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Width | 6-37 mm | |
| Clearance | C0, C2, C3, C4, C5 | |
| Speed Limit | 10,000-30,000 rpm (grease lubricated) | |
| Bore Diameter | 6-100 mm | |
| Precision Grade | ABEC 1, 3, 5, 7, or 9 | |
| Outside Diameter | 19-180 mm | |
| Static Load Rating | 1.2-75 kN | |
| Dynamic Load Rating | 2.5-150 kN | |
| Operating Temperature | -30°C to +120°C (standard), up to +200°C (high-temp variants) |
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
A mechanical assembly that converts rotational motion into linear motion through a threaded screw and nut mechanism.
A precision mechanical component that converts rotational motion into linear motion with high resolution and accuracy.
A mechanical component within a solids ejection system that physically removes accumulated solid materials from processing equipment.
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Angular contact bearings are designed to handle combined radial and axial loads simultaneously with high precision, making them ideal for lead screws requiring accurate positioning. Deep groove bearings primarily handle radial loads with limited axial capacity and are used in less demanding applications. Angular contact bearings typically have higher stiffness and better speed performance for precision linear motion systems.
Lubrication intervals depend on operating conditions: continuous operation at moderate speeds typically requires regreasing every 6-12 months, while high-speed or high-temperature applications may need lubrication every 3-6 months. Sealed bearings are lubricated for life under normal conditions. Always follow manufacturer recommendations and monitor bearing temperature and noise for maintenance cues.
Common failure indicators include increased operating temperature (more than 70°C above ambient), abnormal noise (grinding, clicking, or rumbling), excessive vibration, increased torque requirements, reduced positioning accuracy, visible wear or discoloration, and lubricant leakage. Regular vibration analysis and temperature monitoring can help detect early failure signs.
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