Ball bearings are precision-engineered rolling-element components that reduce friction and support radial/axial loads in linear motion systems.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Speed Rating | Up to 3 m/s linear velocity | |
| Ball Diameter | 1.5-7.938 mm | |
| Load Capacity | Dynamic: 2-50 kN, Static: 3-75 kN | |
| Precision Grade | ABEC 1-9 (ISO P0-P2) | |
| Friction Coefficient | 0.001-0.003 | |
| Operating Temperature | -30°C to +120°C (standard), up to +200°C (special) |
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
Precision linear guide component for smooth, accurate motion in industrial machinery
Precision linear motion components that provide smooth, accurate guidance for moving parts along a straight path.
A precision mechanical component that converts rotary motion into linear motion with minimal friction and high efficiency.
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3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
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Ball bearings use spherical balls for point contact, offering lower friction and higher speeds but lower load capacity. Roller bearings use cylindrical rollers for line contact, providing higher load capacity but slightly higher friction and lower speed capability.
Standard intervals: Every 3-6 months for general applications, or every 100-500 km of travel. High-speed or contaminated environments require more frequent lubrication (monthly). Use ISO VG 32-68 grease or equivalent.
Yes, precision linear guide systems with four-row ball bearing arrangements can handle moment loads (pitch, yaw, roll) through load distribution across multiple bearing points. Moment capacity is specified in manufacturer catalogs.
Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.