EZO Japanese Precision Bearing Range — Quick Reference
EZO is the trusted Japanese miniature + small-size precision ball bearing brand — manufactured by Sapporo Precision Co Ltd (also known as Kitanihon Seiki). Used in instruments + electronics + small motors + medical equipment + precision machinery where bearing accuracy + small size matter.
| EZO Bearing Type | Best For | Common Sizes |
|---|---|---|
| Miniature Ball Bearings (3-10mm Bore) | Instruments + electronics + small motors | 3 / 4 / 5 / 6 / 8 / 10 mm bore |
| Small Series Ball Bearings (10-30mm) | Small machinery + precision drives | 10 / 15 / 20 / 25 / 30 mm bore |
| Stainless Steel (S Series) | Marine + food + medical + corrosive | 440C stainless |
| Open (No Seal) | Where external lubrication accessible | — |
| 2ZZ (Metal Shielded) | General contamination protection | — |
| 2RS (Rubber Sealed) | Better contamination + moisture exclusion | — |
| ABEC Precision Class | ABEC-1 standard / ABEC-3 precision / ABEC-5 high precision | Higher = tighter tolerance |
| Chrome Steel Standard | 52100 bearing steel — workshop standard | Most common — economical |
Why EZO: Japanese precision manufacturing at consistent quality. Where small + precise + reliable matter (instruments + medical + electronics + scientific), EZO competes with NMB + NSK miniature bearings. Smaller volume than big bearing brands (SKF/NSK/NACHI) but stronger in miniature/precision niche. Brand: EZO. Companion: all bearings, ball bearings, deep groove bearings, deep groove guide.
EZO Bearings – Japanese Precision Ball Bearings | AIMS Industrial
EZO Bearings is a trusted Japanese brand of high-precision miniature and small-size ball bearings, manufactured by Sapporo Precision Co., Ltd. (also known as Kitanihon Seiki), founded in 1969.
Product Range
EZO offers a comprehensive range of precision bearings in both metric and inch sizes, with bore diameters from 0.06 mm to 90 mm, available in:
Deep-groove, flanged, ultra-thin-section, and large-format styles
Chrome steel and stainless-steel variants
Multiple seal types and lubrication options
Market Applications
EZO precision ball bearings are widely used across demanding industries where compact size, low noise, and high rotational accuracy are essential, including:
AC/DC motors and power tools
Robotics and encoders
Flow meters and pumps
Medical equipment and measuring devices
Office automation and electronics
EZO Bearings is a trusted Japanese brand of high-precision miniature and small-size ball bearings, manufactured by Sapporo Precision Co., Ltd. (also known as Kitanihon Seiki), founded in 1969.
Product Range
EZO offers a comprehensive range of precision bearings in both metric and inch sizes, with bore diameters from 0.06 mm to 90 mm, available in:
Deep-groove, flanged, ultra-thin-section, and large-format styles
Chrome steel and stainless-steel variants
Multiple seal types and lubrication options
Market Applications
EZO precision ball bearings are widely used across demanding industries where compact size, low noise, and high rotational accuracy are essential, including:
AC/DC motors and power tools
Robotics and encoders
Flow meters and pumps
Medical equipment and measuring devices
Office automation and electronics
Authorized Supplier
AIMS Industrial is an authorized supplier of EZO precision ball bearings, rubber seals, and metal seals — providing access to the full EZO product range for industrial and specialty applications.
Browse EZO ball bearings at AIMS Industrial alongside our Bearings, Power Transmission, and FYH Bearings collections.
Order online, Contact our team or request a quote.