1/8" Steel Balls Grade 10 (Pack of 2000) – Micro Precision Meets Industrial Strength
In the realm of fine mechanics and compact assemblies, precision isn’t optional — it’s critical. These 1/8 inch (3.175 mm) Grade 10 steel balls are crafted for engineers, manufacturers, and technicians who demand the highest standards in performance, consistency, and reliability. This pack of 2000 delivers unmatched quality in a compact form — engineered to excel in high-speed, high-precision environments.
🧠 Grade 10 Excellence – What It Really Means
Grade 10 is not just a number — it’s a measure of excellence. With roundness deviations of under 10 microns, these steel balls offer near-perfect sphericity. That translates to exceptionally smooth motion, minimal vibration, and extended bearing life. Each ball is mirror-polished and hardened through heat treatment, offering a blend of surface smoothness and core strength that performs under pressure.
📦 Specifications at a Glance:
Diameter: 1/8 inch (3.175 mm)
Material: High-carbon steel, heat-treated for hardness and wear resistance
Grade: 10 (ultra-precise, ISO 3290 / AFBMA certified)
Finish: Super-polished, low-friction surface
Hardness: ~60–66 HRC (Rockwell)
Pack Size: 2000 balls per pack
Density: ~7.85 g/cm³
⚙️ Engineered for Precision Applications
These balls are a go-to choice in industries where tolerances are tight and failures are expensive:
Miniature Bearings: Ultra-low friction for high-speed, small-form bearings
Medical Instruments: Used in precise mechanical instruments (non-surgical)
Automotive Micro-Mechanisms: Controls, linkages, and detailed motion systems
Robotics: Core to joint movements and servo-based components
Watches & Precision Devices: Offers balance, weight, and rotation accuracy
Aerospace & Defense Prototypes: Trusted for their reliability in critical systems
🔍 Advantages That Make the Difference
✅ True Roundness: Eliminates inconsistencies and balances load evenly
✅ Surface Integrity: Polished to a mirror finish, reducing wear and resistance
✅ Dimensional Accuracy: Maintains exact size across thousands of units
✅ Durability: Resists flattening, fatigue, and surface damage under repeated stress
✅ Bulk Efficiency: Large pack size is ideal for both large-scale and repeated-use setups
🔒 Handling & Storage Tips
As these are non-stainless steel, proper storage is important:
Store in dry, sealed containers to prevent rust
Avoid contact with skin oils — use gloves or tweezers during handling
For long-term storage, apply a light anti-rust or machine oil layer
🚀 Built for Projects That Can’t Afford Errors
Whether you're manufacturing cutting-edge robotics, repairing high-performance mechanical systems, or prototyping detailed motion assemblies, these 1/8" Grade 10 steel balls bring a level of performance that elevates your work. They're the hidden hero behind smooth operations, silent movements, and durable systems.
