The bearing package is divided into inner and outer packaging.
After the bearing is manufactured and tested, it is cleaned and rust-proofed, and then placed in the inner packaging to achieve waterproof, moisture-proof, dust-proof, shock-proof, maintenance bearing quality and precision, and convenient use and sales. .
The inner packaging of the bearing is divided into three categories according to the anti-rust period:
1 Short rust-proof period Packing: The rust-proof period is 3 to 6 months. It is suitable for bearings that are shipped to the same subscriber in large quantities and put into use in a short period of time. According to the agreement between the two parties, the principle of convenient use is adopted, and simple packaging is adopted.
2 general anti-rust period packaging: anti-rust period of one year, suitable for general purpose bearings.
3 long anti-rust period packaging: anti-rust period of two years, suitable for special and precision bearings.
The inner packaging material of the bearing is polyethylene plastic tube (box), kraft paper, plain and wrinkle polyethylene composite paper, carton, polyethylene or polyethylene plastic film, nylon fastening tape or plastic fastening tape, waterproof high-strength plastic tape , linen bags, etc. All of the above materials are required to ensure that the corrosion resistance of the material is tested.
The principle requirements for the inner packaging method:
1 Miniature bearing: Every 10~15 sets of bearings are loaded into a plastic cylinder, and every 5~10 plastic cylinders are loaded into a paper box (or bag, roll).
2 medium and small bearings:
——Multi-bearing bearing is wrapped with polyethylene film, external kraft paper or polyethylene composite paper;
- multiple sets of bearings are loaded into a plastic cylinder (box);
——The single set of bearings is packed in polyethylene film bags, folded or sealed and then loaded into a carton.
3 large bearings:
——Packed in a single film of polyethylene film or polyethylene composite paper, and then loaded into a carton;
——With a polyethylene film bag, the single bag is folded into the bag and then loaded into a carton;
——Single into a special plastic box;
——Single set of three-layer wrap packaging: polyethylene film tape or composite paper tape for the inner layer, fastening tape for the middle layer, and waterproof and permeable plastic tape for the outer layer.
4 extra large bearings:
- a single set of three layers wrapped around the package (ibid);
- Single-four-layer wrapped package: After wrapping the above three layers, the outer layer is wrapped with a layer of linen.
For separable tapered roller bearings with an outer diameter of ≥150mm, the polyethylene film shall be placed before the inner and outer components before packaging, or the inner and outer components shall be separately packaged separately.
For interchangeable cylindrical roller bearings with an outer diameter of ≥150mm, it is easy to be injured due to the package. Generally, it can be separately packaged by internal and external components.
The general materials and requirements for bearing outer packaging are as follows:
1 double corrugated carton, the total weight (gross weight) of each box is not more than 25kg, and the outside of the box is bundled with plastic packing tape;
2 nail box (wooden box), the total weight of each box is not more than 30kg, and the outside of the box is bundled with blue steel belt;
3 calcium plastic corrugated box, the total weight of each box does not exceed 25kg, the box loves to be bundled with plastic strapping.
When loading the bearing product with the inner packaging into the box, the plastic bag or plastic film should be placed in the box first; if there is a gap in the box, it should be filled with dry materials such as corrugated cardboard and paper dust.
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