mini size China miniature bearing

Home / Blogs / Info
MS Bearing WareHouse
author admin 07 September, 2026

Mini size China miniature bearing refers to small-dimension bearings (inner diameter ≤ 10 mm) manufactured in China to meet ISO 15:2017 dimensional and tolerance standards, designed for compact applications in global industrial, OEM, and maintenance sectors. MS Bearings, a Kunshan-based manufacturer since 2019, produces these bearings as factory-direct OEM equivalents to leading brands like SKF and FAG, with ISO 9001:2015 certification and a 12-month warranty for all products.

Key Applications of Mini Size China Miniature Bearings

Mini size China miniature bearings serve high-precision, space-constrained environments. Common applications include:

  • Small electric motors (≤ 500W) in consumer electronics and industrial automation
  • Medical devices (surgical tools, diagnostic equipment)
  • Automotive components (door latches, window regulators, sensor assemblies)
  • Small gearboxes for robotics and conveyor systems

Quality Specifications for Mini Size China Miniature Bearings

Per MS Bearings factory data 2024, mini size China miniature bearings meet strict tolerance and performance criteria. Below is a comparison of standard specifications for deep groove ball and angular contact ball miniature bearings, the most common types:

SpecificationDeep Groove Ball Miniature BearingAngular Contact Ball Miniature Bearing
Inner Diameter Range1–10 mm1–8 mm
Radial Load Capacity0.2–1.5 kN0.1–1.2 kN
Max RPM (Grease Lubricated)15,000–30,00012,000–25,000
Temperature Range-20°C to +120°C-15°C to +110°C
MS Bearings sources high-grade chrome steel (GCr15) for all mini size miniature bearings, ensuring consistent hardness (HRC 60–64) and wear resistance, critical for long-life performance in high-speed applications.

Selection Criteria for Mini Size China Miniature Bearings

Choosing the right mini size China miniature bearing depends on three core factors, per OEM engineering guidelines:

  1. Load requirements: Match radial vs. thrust load to bearing type (deep groove for radial, angular for combined loads)
  2. Speed: Select bearings with max RPM exceeding your application’s operating speed by 20% to avoid overheating
  3. Environmental conditions: Account for temperature, dust, or moisture (sealed bearings for dusty environments, lubricated for high heat)

Maintenance Best Practices for Mini Size China Miniature Bearings

Proper maintenance extends the lifespan of mini size China miniature bearings, reducing downtime and replacement costs. Follow this checklist for routine inspections:

  • Check for abnormal noise (grinding or squealing) during operation
  • Measure temperature rise: A 10°C+ increase above baseline indicates lubrication issues or misalignment
  • Inspect seals for damage or wear, replace every 6–12 months depending on usage
  • Use manufacturer-approved lithium-complex grease for re-lubrication, avoid over-greasing to prevent heat buildup

What is the MOQ for mini size China miniature bearings from MS Bearings?

MS Bearings requires a minimum order quantity (MOQ) of 100 units for standard mini size miniature bearings, with custom options available for larger bulk orders.

Are mini size China miniature bearings compatible with SKF equivalents?

Yes, MS Bearings’ mini size miniature bearings are designed as direct OEM equivalents to SKF’s 6000 series and 7000 series, matching dimensional and performance specs per ISO standards.

How long does shipping take for mini size China miniature bearings?

Standard shipping to North America, Europe, and Southeast Asia takes 7–10 days, with 24-hour order processing and tracking provided for all orders.

For bulk orders or custom mini size China miniature bearings, MS Bearings offers factory-direct pricing and technical support to meet your specific application needs. Visit mshjzc.com for more details.