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The 693 is a compact miniature ball bearing with a 3mm bore and 8mm outer diameter, crafted from durable chrome steel. It supports radial loads up to 107 lbf and spins efficiently at speeds up to 60,000 RPM.
Its open design simplifies lubrication, while the stainless steel cage ensures smooth operation. The bearing performs reliably in temperatures ranging from -30°C to 110°C.
With a lightweight build of just 0.6g, it’s ideal for small applications like model-making or precision instruments. The ABEC1 tolerance class offers good balance between performance and cost.
This bearing is easy to maintain and fits well in tight spaces, making it a practical choice for hobbyists and light industrial use. Compliant with RoHS and REACH standards for safety.
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Why Choose 693 Bearing for Precision Tasks?
693 Bearing is designed with chrome steel rings and balls, ensuring durability and smooth operation in precision applications.
Its compact size of 3 mm×8 mm×3 mm makes it ideal for miniature devices requiring reliable radial load support.
The stainless steel cage maintains ball alignment, reducing friction and extending the bearing’s service life.
With a maximum speed of 60,000 rpm, it delivers efficient performance in high-speed environments.
How Does 693 Bearing Reduce Friction?
693 Bearing features a precision-engineered chrome steel construction, minimising friction during operation.
The six-ball design ensures even load distribution, enhancing smoothness and reducing wear.
Its open seal type allows for easy lubrication, further improving performance and longevity.
Suitable for temperatures from -30° to 110°C, it adapts well to various working conditions.
Engineered for Precision: 693 Bearing
693 Bearing’s ABEC1 tolerance class guarantees consistent accuracy for high-precision applications.
The radial clearance of 0.002mm to 0.013mm ensures optimal performance with minimal vibration.
Its lightweight design at just 0.6 g makes it perfect for compact and portable devices.
The dynamic radial load capacity of 107 lbf provides reliable support in demanding setups.
Open vs Sealed Bearings: Benefits of 693 Bearing
693 Bearing’s open design simplifies lubrication, ensuring smooth operation with minimal maintenance.
The chrome steel construction resists wear, making it a durable choice for radial load applications.
With a static radial load capacity of 32 lbf, it handles light to moderate loads efficiently.
Its high-speed capability of 60,000 rpm suits applications requiring fast, precise movement.
Where Is 693 Bearing Used?
The 693 Bearing is commonly used in small electric motors, such as those found in cooling fans or power tools, thanks to its compact 3mm bore and smooth radial load handling. Its open design allows for easy lubrication, extending service life in continuous-use devices.
In automation systems, 693 Bearing fits neatly into robotic arm joints or 3D printer components, where precision and low friction are key. The ABEC1 tolerance ensures reliable performance without over-engineering costs.
For medical devices like dental handpieces, 693 Bearing’s chrome steel construction provides quiet operation essential for patient comfort. The lightweight stainless steel cage helps maintain balance in high-speed rotations.
What Makes 693 Bearing a Preferred Choice?
In consumer electronics, 693 Bearing works well in devices like miniature drones or camera shutters due to its 0.6g weight and 60,000 rpm capability. The metric sizing makes it compatible with global component standards.
Industrial Uses of 693 Bearing
Textile machines often use 693 Bearing in thread guides or bobbins where its 8mm OD fits space-constrained areas. The MC3 clearance range accommodates both precision and thermal expansion needs.
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