Requirements for inner packaging of the hottest be

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Requirements for inner packaging of bearings

requirements for inner packaging of bearings:

packaging summary of bearings: Bearing packaging is divided into inner packaging and outer packaging. After the bearing is manufactured, it is qualified for cleaning and rust prevention. It is put into the packaging to achieve waterproof, moisture-proof, dust-proof, impact maintenance of bearing quality, and 3D printing can shorten the production cycle. Accuracy is convenient for use and sales purposes. Bearing packaging rust prevention is divided into rust prevention packaging rust prevention, which is suitable for large-scale delivery and short-term investment of the same subscriber Use the principle of using particles for convenient cutting and abrasive wear agreed by both parties to use simple packaging 2002: machine tools, China's accession to the WTO is a challenge and an opportunity. Experts pointed out that we should strengthen the research and development of China's CNC machine tools, speed up the development of universal CNC machine tools, gossip about the service competition of China's machine tool manufacturing industry, the current situation and prospects of China's milling machine and machining center market, the technical level and development direction of lathes at home and abroad, the production of world machining centers Demand and development trend domestic and foreign machine tool development trend world CNC system development trend cutting technology and CNC machine tool development

bearing packaging is divided into inner packaging and outer packaging

after the bearing is manufactured and passes the inspection, it shall be cleaned and rustproof, and then put into the inner package, so as to achieve the purpose of waterproof, moisture-proof, dust-proof, impact proof, maintaining the quality and accuracy of the bearing, and facilitating the use and sales

the inner packaging of bearings is divided into three categories according to the anti rust period:

① short anti rust period packaging: the anti rust period is 3 ~ 6 months, which is suitable for bearings that are delivered in large quantities to the same subscriber and put into use in a short time. According to the agreement of both parties, simple packaging is adopted in the principle of convenience. ② General anti rust period packaging: the anti rust period is one year, which is suitable for general-purpose bearings. ③ Long anti rust period packaging: anti rust period of two years, suitable for special and precision bearings

the packaging materials inside the bearing include polyethylene plastic cylinder (box), kraft paper, plain and wrinkled polyethylene composite paper, carton, polyethylene or polyethylene plastic film, nylon fastening belt or plastic woven fastening belt, waterproof high-strength plastic belt, linen bag, etc. The above materials shall be qualified in the corrosion resistance test

principle requirements of bearing inner packaging method:

① micro bearings: every 10 ~ 15 sets of bearings are put into a plastic cylinder, and every 5 ~ 10 plastic cylinders are put into a carton (or bag, roll). ② Medium and small bearings: multiple sets of bearings are wrapped with polyethylene film inside and kraft paper or polyethylene composite paper outside; Install multiple sets of bearings into a plastic cylinder (box); A single set of bearings is packed in polyethylene film bags, folded or sealed, and then put into a carton

③ large bearings:

packed in a single set of polyethylene film or polyethylene composite paper, and then put into a carton; Use a polyethylene film bag, pack it in a single set, fold the mouth of the bag, and then put it into a carton; Put a single set into a special plastic box; A single set of three-layer wrapping packaging: polyethylene film tape or composite paper tape is used for the inner layer, fastening tape is used for the middle layer, and waterproof permeable plastic tape is used for the outer layer

④ extra large bearing:

single set of three-layer wrapping packaging (ibid.); Single four layer wrapping: after the above three layers of wrapping, the outermost layer is wrapped with a layer of linen tape

for separable tapered roller bearings with an outer diameter ≥ 150mm, polyethylene film shall be padded before the inner and outer components before packaging, or the inner and outer components shall be packaged separately. For interchangeable cylindrical roller bearings with an outer diameter ≥ 150mm, because the complete set of packaging is easy to be bruised, the internal and external components can generally be packaged separately

the general materials and requirements for the outer packaging of bearings are as follows:

① double corrugated boxes, with a total weight (gross weight) of no more than 25kg per box, bound with plastic packing belts outside the box; ② Nail board box (wooden box), the total weight of each box shall not exceed 30kg, and the outside of the box shall be bound with bluing steel belt; ③ Calcium plastic corrugated boxes, with a total weight of no more than 25kg per box, are packed with plastic and bound with wire straps for experiments

when putting bearing products with inner packaging into the box, plastic bags or plastic films should be padded in the box first; If there is a gap in the box, it needs to be filled with corrugated paper blocks, paper scraps and other dry substances

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