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The 681 is a miniature ball bearing with a compact size of 1mm bore, 3mm outer diameter, and 1mm width, crafted from durable chrome steel. It handles radial loads up to 18 lbf and spins at speeds up to 130,000 RPM.
Its open design allows for easy lubrication, while the stainless steel cage ensures smooth operation. The bearing performs reliably in temperatures ranging from -30°C to 110°C.
With an ABEC1 tolerance class, it offers decent precision for small applications. Ideal for tiny devices like model cars or precision instruments where space is limited.
Weighing just 0.03g, it’s lightweight yet sturdy. Compliant with RoHS and REACH standards for safe use.
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Why Choose 681 Bearing for Precision Tasks?
681 Bearing is precision-engineered with chrome steel rings and balls, ensuring smooth operation in radial applications.
Its compact size of 1mm×3mm×1mm makes it ideal for miniature devices requiring high accuracy.
The stainless steel cage maintains ball alignment, reducing friction and wear over time.
With a maximum speed of 130,000 rpm, it delivers reliable performance in high-speed scenarios.
How Is 681 Bearing Engineered for Reliability?
681 Bearing features a single-row design with ABEC1 tolerance, providing consistent performance in radial loads.
The chrome steel construction resists wear, while the open seal type allows for easy lubrication.
Its dynamic radial load capacity of 18 lbf ensures durability in demanding applications.
The lightweight design at just 0.03 g makes it suitable for precision instruments.
Built for Reliability: 681 Bearing
681 Bearing’s chrome steel components offer excellent resistance to wear and corrosion.
The radial clearance of 0.002mm to 0.013mm ensures smooth operation with minimal vibration.
Its temperature range of -30° to 110°C allows for use in varied environments.
The six-ball design enhances load distribution, extending the bearing’s service life.
Steel vs Ceramic Bearings: Strengths of 681 Bearing
681 Bearing uses chrome steel for both rings and balls, balancing cost and performance.
The material choice ensures durability and resistance to deformation under radial loads.
Unlike ceramic bearings, 681 Bearing is more cost-effective for standard precision applications.
Its stainless steel cage further enhances reliability without compromising on weight.
What Makes 681 Bearing Suitable for High-Temperature Applications?
681 Bearing operates reliably in temperatures ranging from -30° to 110°C.
The chrome steel construction maintains structural integrity even under thermal stress.
Its open design allows for effective lubrication, reducing friction at high speeds.
The bearing’s compact size does not compromise its ability to handle thermal expansion.
Common Applications of 681 Bearing
The 681 Bearing is widely used in small electronic devices, such as miniature fans and precision instruments, where its compact size and smooth operation are essential. Its open design allows for easy lubrication, ensuring long-lasting performance in tight spaces.
In automation systems, 681 Bearing supports delicate mechanisms like robotic arms and 3D printer components, thanks to its low friction and high-speed capabilities. The chrome steel construction ensures durability even in continuous operation.
For medical devices, 681 Bearing’s precise radial load handling makes it suitable for applications like surgical tools and diagnostic equipment. The stainless steel cage adds an extra layer of reliability in sterile environments.
Where to Use 681 Bearing
You’ll often find 681 Bearing in consumer electronics, such as handheld gadgets and small appliances, where its lightweight design and efficiency are key. The metric sizing ensures compatibility with a variety of international products.
In industrial settings, 681 Bearing is a go-to choice for light-duty machinery requiring high-speed rotation. Its ABEC1 tolerance class provides adequate precision for most general applications without unnecessary complexity.
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