Shandong Xinkaite Bearing Co.,Ltd.
Unified Social Credit Code: 9137 1525MA3C 5428XP
Production Department
Address: Xu Village Industrial Garden, Gan Town, Guan County, Shandong
Tel: +86 635 5638235
Fax: +86 635 5638808
Mobile: +86 15563545668
Service Hotline: 4000 305204 Sales Department
Address: 314 Puli Mansion, Beixiaoxinzhuang West Street, Jinan City, Shandong
Tel: +86 15688862750
Fax: +86 531 87901699
WhatsApp: +86 15688862750
Skype: live:XinKaite
Email: xkte@xinkaite.com
Five trilogy to judge the quality of self-aligning ball bearing
Clicks:3980 Date:1-10
The top of the list, the investigation of the outer packaging of self-aligning ball bearing is not clear. Usually, the factory brands have their own special planners to plan for the external packaging, and lay out factories where the production conditions are over. Therefore, the packaging is very clear from the lines to the color blocks, without any paste. (part of the brands accessories packaging also has a common plan to protect intellectual property rights, which will be introduced continuously in the future.
Second, bearing the word symbol is not clear. In the imported bearing body will be printed with brand words, signs and so on. The font is very small, the plant is produced mostly by stamping technology, and not through the heat disposal is carried out before the embossing, so the font is small, but the concave too deep, very clear. But the font of the counterfeit goods is not but fuzzy, because the printing technology is rough, the font floating on the surface, some or even casually, can be wiped out by hand.
Third, check the bearing is not a miscellaneous sound. Use the left hand to catch the sleeve of the bearing body, the right hand to change the coat to make it change, listen to it is not noisy. Because the production of most counterfeit goods is conditional lagging behind, the whole hand operation is unavoidable. In the production process, impurities will be mixed into sand, a kind of impurities are stored in the bearing body, so the noise will be declared at the time of change. This is the biggest disagreement between the strict production standards, and the mechanical operation of the factory brand.
Fourth, check the bearing surface is not a turbid oil. In the purchase should be careful of the oil bearing, due to the current domestic anti rust technology is not particularly at home, so the antirust disposal of the bearing body is easy to leave a thick grease, holding hands in the sticky, and bearing foreign original almost can not see the traces of rust proof oil, but it is especially careful expert said bearing smells a taste, must be under the anti rust oil, just can not see.
Fifth, check the chamfering of the bearing is not uniform. Bearing chamfer is horizontal and vertical surface inform, counterfeit bearings due to production technology constraints, are not enough in place in these parts of the corners of the.
