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Shaft sleeve inspection rules
1. Appearance quality The surface of the sample should have no bubbles, no burrs, no deformation, uniform material, and no irritating smell.
2. Size
(1) Relevant dimensions tested with a vernier caliper shall comply with relevant technical and drawing requirements.
(2) After the shaft sleeve is matched with the shaft, the rotor is vertically downward, and the shaft sleeve will not slide freely under the action of its own weight.
3. Heat resistance and aging resistance test
(1) After the sample is subjected to the 125°C/1h ball pressure test, the indentation should be ≤ 2mm, and there is no deformation by visual inspection.
(2) After putting the sample into the oven at 120°C/96 hours, there is no embrittlement or deformation of the shaft sleeve by visual inspection.
4. Combustion resistance test
The flame retardant grade is VW-1, burn with an alcohol lamp for 15S, and it should be extinguished within 15S.
5. Packaging and marking
(1) The packaging should be firm, reliable and safe to ensure that the product is not damaged during transportation.
(2) The supplier code and name, product name, product quantity, material code, quality inspection mark, production date, etc. should be marked on the package. The mark should be clear and accurate, and there should be no mixed packing.
(3) In order to increase the traceability of the product, it is required to mark the production batch number in a conspicuous place on the outer packaging. The supply batch number shall be marked on the product inspection certificate or the original inspection (experiment) record.
6. Hazardous substance content (RoHS directive)
If it is used in the RoHS directive model, the material should meet the requirements of the RoHS directive.
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1. Appearance quality The surface of the sample should have no bubbles, no burrs, no deformation, uniform material, and no irritating smell. 2. Size (1) Relevant dimensions tested with a vernier caliper shall comply with relevant technical and drawing requirements. (2) After the shaft sleeve is matched with the shaft, the rotor is vertically downward, and the shaft sleeve will not slide freely under the action of its own weight.
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