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High Precision Heat Treatment SUS420J2 8X121 Edging Hatching Knurling Motor Rotor Steel Shaft
This shaft is an automobile motor shaft. It is used in the automatic field. The two ends are knurled. There is a section of double milling in the middle of the shaft. The runout of any part of the whole shaft is 0.02, and the hardness is HRC43-47. Two types of grinders, coreless grinder and plug grinder, are used.
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Product Description |
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| Reminder: All products are customized products for customers, if you have customized requirements, please contact customer service | |||||||
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Product Name |
shaft |
Specifications |
8*121 |
Material |
SUS420J2 |
Hardness |
43-47 |
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Number |
Process |
Control Item |
Control Standard | ||||
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10 |
Cutting |
length |
121 +1.2/+1.0 |
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Straightness |
↗0.03 |
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20 |
Surface grinding |
length |
121 +0.2/+0.1 |
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30 |
rough grinding 1 |
Outer diameter |
Ф8 +0.12/+0.11 ↗0.02 |
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40 |
CNC turning |
double milling edge |
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50 |
knurling Rolling |
Reticulated |
Ф8 +0.05/+0 m=0.4 |
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60 |
Heat treatment |
Hardness |
HRC43-47 |
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70 |
rough grinding 1 |
Outer diameter |
Ф8 +0.06/+0.05 ↗0.01 |
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80 |
Fine grinding |
outer diameter |
Ф8 +0.005/ 0 |
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Roundness |
Ф8 ±0.002 |
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Roughness |
0.002 |
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Run-out |
Ra0.4 |
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90 |
Plug grinder |
outer diameter |
Ф8 -0.020/-0.035 |
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