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What are crossed roller bearings?

time:2025-05-05 10:57:38hit:3

Crossed roller bearings are a type of high-precision, high-rigidity bearing. The core design of the cross rollers is the cross arrangement of the rollers: Structural features: The inner and outer rings are designed as an integrated whole, the rollers are arranged crosswise at 90 degrees, and the adjacent rollers are perpendicular. Working principle: The rollers are in line contact with the raceway, and they bear radial force, axial force and overturning moment at the same time, achieving efficient load bearing in multiple directions. Core advantages: Compared with ordinary bearings, its structure is more compact, the rigidity is increased by more than 50%, and the rotation accuracy can reach the micron level!

  1. High rigidity & high load capacity    The cross-arranged rollers distribute the load evenly and can resist radial, axial and moment loads at the same time, which is especially suitable for complex force scenarios.2. Ultra-high rotation accuracy    The precision grinding technology of rollers and raceways ensures that the rotation runout is less than 0.001mm, meeting the stringent requirements of semiconductor lithography machines, precision turntables, etc.   3. Compact and lightweight    The integrated design reduces the number of components and saves equipment space, which is especially suitable for volume-sensitive applications such as robot joints and drone gimbals.4. Long life & low maintenance    High-quality steel + special heat treatment process, excellent fatigue resistance, service life can reach 2-3 times that of ordinary bearings.5. Low friction & high response    The optimized roller profile design reduces friction loss and improves the dynamic response speed of equipment, such as the motion accuracy of industrial robots.

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05

May
2025