New England Miniature Ball
Precision Ball Specialists
Phone: 860-542-5543
Fax: 860-542-5058
sales@nemb.com
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Precision Miniature Ball Sizes
The product chart shows the standard size range of balls manufactured from specific materials. Visit our Products section for detailed technical specifications over a wide range of materials.
NEMB has an extensive inventory of standard and non-standard diameters available. Please contact our engineering or sales department for your specific needs, or fill out the quick RFQ form on our ordering page.
All gages are calibrated to Mil-STD-45662 and all master balls traceable to the National Institute of Standards and Technology (NIST).
Material Sizes
| SIZE | 440C | 52100 | 316 | 302 | 2017- T4 ALUM |
BRASS | TC44A | TC55A | COPPER | TITANIUM | NICKEL | 420 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4MM | • | • | • | • | • | • | • | |||||
| 5/32" | • | • | • | • | • | • | • | |||||
| 9/64" | • | • | • | • | • | • | • | |||||
| 3.5MM | • | • | • | • | • | • | • | |||||
| 1/8" | • | • | • | • | • | • | • | • | • | • | ||
| 3MM | • | • | • | • | • | • | • | • | • | • | ||
| 7/64" | • | • | • | • | • | • | • | • | • | • | ||
| 2.5MM | • | • | • | • | • | • | • | • | • | • | ||
| 3/32" | • | • | • | • | • | • | • | • | • | • | ||
| 2MM | • | • | • | • | • | • | • | • | • | • | ||
| 5/64" | • | • | • | • | • | • | • | • | • | • | ||
| 1/16" | • | • | • | • | • | • | • | • | • | • | • | • |
| 1.5MM | • | • | • | • | • | • | • | • | • | • | • | • |
| 3/64" | • | • | • | • | • | • | • | • | • | • | • | • |
| 1MM | • | • | • | • | • | • | • | • | • | • | • | • |
| 1/32" | • | • | • | • | • | • | • | • | • | • | • | • |
| 0.025" | • | • | • | • | • | • | • | • | • | • | • | • |
| 0.020" | • | • | • | • | • | • | • | • | • | • | • | |
| 0.015" | • | • | • | • | • | • | • | |||||
| 0.010" | • | • | • |
| INDIVIDUAL BALLS | |||
| Grade | Allowable Ball Diameter Variation | Allowable Deviation From Spherical Form Sphericity/Roundness | Maximum Surface Roughness Arithmetical Average Ra |
|---|---|---|---|
| 3 | 3 | 3 | 0.5 |
| 5 | 5 | 5 | 0.8 |
| 10 | 10 | 10 | 1 |
| 16 | 16 | 16 | 1 |
| 24 | 24 | 24 | 2 |
| 48 | 48 | 48 | 3 |
| 100 | 100 | 100 | 5 |
| 200 | 200 | 200 | 8 |
| 500 | 500 | 500 | * |
| 1000 | 1000 | 1000 | * |
| BALLS BY LOT | |||||
| Grade | Allowable Lot Diameter Variation | Basic Diameter Tolerance | Allowable Ball Gauge Deviation | Container Marking Increment | |
|---|---|---|---|---|---|
| Hi | Low | ||||
| 3 | 5 | ±30 | +30 | -30 | 10 |
| 5 | 10 | ±50 | +50 | -40 | 10 |
| 10 | 20 | ±100 | +50 | -40 | 10 |
| 16 | 32 | ±100 | +50 | -40 | 10 |
| 24 | 48 | ±100 | +100 | -100 | 10 |
| 48 | 96 | ±200 | * | 50 | |
| 100 | 200 | ±500 | * | * | |
| 200 | 400 | ±1000 | * | * | |
| 500 | 1000 | ±2000 | * | * | |
| 1000 | 2000 | ±5000 | * | * | |
* Not applicable