Miniature Bearings

SPB-USA is proud to introduce a new range of miniature bearings engineered for compact, high-performance applications. These components are critical for industries requiring reliable motion in limited space, such as medical devices, robotics, automation, and instrumentation. The product line includes both miniature precision bearings and miniature thrust bearings, giving engineers and OEMs a dependable solution for a variety of mechanical systems.

Miniature Precision Bearings

Miniature precision bearings are small-diameter ball bearings built for speed, smooth rotation, and low friction. SPB-USA’s miniature precision bearings reflect decades of expertise and are manufactured by Sapporo Precision Inc.—a trusted name in ball bearing production since 1969. With a focus on clean environments, advanced material control, and reliable inspection processes, each bearing is produced to meet exacting standards.

Industries using these products include:

  • Medical and Dental – Handpieces, diagnostic tools, surgical instruments
  • Aerospace and Defense – Guidance systems, avionics, unmanned platforms
  • Robotics and Automation – Servo motors, grippers, precision joints
  • Laboratory Equipment – Centrifuges, sample handlers, analyzers
  • Consumer Electronics – Cooling fans, spindle motors, camera assemblies
  • Industrial Controls – Encoders, actuators, control feedback systems

Produced with stainless steel, chrome steel, or hybrid ceramic materials, these bearings are available in a variety of configurations and lubrications. Options include open, shielded, and sealed designs, with both inch and metric dimensions available to accommodate standard and specialized mounting needs.

Miniature Thrust Bearings

In addition to radial options, SPB-USA also offers miniature thrust bearings for applications where the axial load is great. These bearings enable smooth, low-friction travel along a vertical shaft and are commonly used in machine tools, turntables and vertical turning machines.

Applications include:

  • Micro Motors and Robotic – Rotating shaft support, servo motors in drones and robotic joints
  • Disc Drives and Electronics – Cooling fans, precision DVDs
  • Medical Devices – Surgical instruments, miniature pumps & diagnostic equipment
  • Instrumentation and Measurement Devices – Gyroscopes, lab instruments
  • Automotive Sensors and Controls – Small actuators for mirrors, HVAC systems

Though compact, these components support a wide range of motion applications and are capable of maintaining consistent performance across extended cycles. Their design helps reduce resistance and wear while improving repeatability, making them a strong choice for motion-critical assemblies.

Built for Precision

Whether rotational or thrust, every bearing offered through SPB-USA is built to meet the needs of engineers focused on consistency and quality. With options for corrosion resistance, tight tolerances, and varied load requirements, these miniature components serve a wide array of motion control designs.

SPB-USA operates under ISO 9001 and ISO 14001 certifications, with a continued focus on product integrity, supply chain dependability, and technical support. As part of Solve Industrial Motion Group, SPB-USA brings global manufacturing capabilities to the North American market with a dedicated team based in Sarasota, Florida.

Contact SPB-USA

For more information on miniature precision bearings or miniature thrust bearings, feel free to contact us. Our team is ready to assist with selection, sizing, and availability. Whether you are working on a new design or looking for a drop-in replacement, SPB-USA can provide solutions that support performance, reliability, and long-term operation.