Specialized company in manufacturing steel ball & tapered roller for precise ball bearings
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Scope of Grade Application, Shape and Surface Roughness and Interval Precision and Gauge
Unit : ㎛
| Grade | Scope of Nominal Application | Shape Precision and Surface Roughness | Interval Precision Gauge | |||||
|---|---|---|---|---|---|---|---|---|
| 1st Blank (Metric) | 2nd Blank (Inch) | Diameter Floating VDWS(Max) | Roundness(Max) | Surface Roughness Ra(Max) | Mutual Difference of Lot Diameter (Max) | Guage Spacing | Guage S | |
| G3 | 0.3~12mm | 0.025~1/2 | 0.08 | 0.08 | 0.0100 | 0.13 | 0.5 | -5,..,-0.5, 0, +0.5,..,+5 |
| G5 | 0.3~12mm | 0.025~1/2 | 0.13 | 0.13 | 0.0140 | 0.25 | 1 | -5,..,-1, 0, +1,..,+5 |
| G10 | 0.3~25mm | 0.025~1 | 0.25 | 0.25 | 0.0200 | 0.5 | 1 | -9,..,-1, 0, +1,..,+9 |
| G16 | 0.3~25mm | 0.025~1 | 0.4 | 0.4 | 0.0250 | 0.8 | 2 | -10,..,-2, 0, +2,..,+10 |
| G20 | 0.3~38mm | 0.025~1 1/2 | 0.5 | 0.5 | 0.0320 | 1 | 2 | -10,..,-2, 0, +2,..,+10 |
| G28 | 0.3~38mm | 0.025~1 1/2 | 0.7 | 0.7 | 0.0500 | 1.4 | 2 | -12,..,-2, 0, +2,..,+12 |
| G40 | 0.3~50mm | 0.025~2 | 1 | 1 | 0.0600 | 2 | 4 | -16,..,-4, 0, +4,..,+16 |
| G60 | 0.3~65mm | 0.025~3 | 1.5 | 1.5 | 0.8000 | 3 | 5 | -25,..,-5, 0, +5,..,+25 |
| G100 | 0.3~65mm | 0.025~4 1/2 | 2.5 | 2.5 | 0.1000 | 5 | 10 | -40,..,-10, 0, +10,..,+40 |
| G200 | 0.3~65mm | 0.025~4 1/2 | 5 | 5 | 0.1500 | 10 | 15 | -60,..,-15, 0, +15,..,+60 |