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NSK bearing packaging classification and guidelines
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The inner packaging of the bearing is divided into three categories according to the anti-rust period:
1 Short anti-rust period packaging: anti-rust period 3 to 6 months; suitable for large-volume delivery to the same subscriber; bearing put into use in a short period of time. After two sides agreement; easy to use as a guideline; use simple packaging.
2 usually rust-proof period packaging: rust-proof period of one year; suitable for the bearing of common use.
3 long anti-rust period packaging: anti-rust period of two years; suitable for special and fine bearings.
Bearing inner packaging materials include polyethylene plastic tube (box), kraft paper, plain and crepe polyethylene composite paper, carton, polyethylene or polyethylene plastic film, nylon fastening tape or plastic fastening tape, waterproof high-strength plastic tape , linen bags, etc. The above information must be ensured that the corrosion resistance function of the data is qualified.
Guidelines for bearing inner packaging methods:
1 miniature bearing: every 10 to 15 sets of bearings are loaded into a plastic cylinder; every 5 to 10 plastic cylinders are packed into a carton (or bag, roll).
2 medium and small bearings:
Multiple sets of bearings are wrapped with polyethylene film, external kraft paper or polyethylene composite paper;
Multiple sets of bearings are loaded into a plastic cylinder (box);
Single set of bearings are packed in polyethylene film bags; fold or seal the mouth of the bag and then load a carton.
3 large bearings:
Packed in a single set of polyethylene film or polyethylene composite paper; then loaded into a carton;
Use polyethylene film bag; single set of folded bag mouth; then put into a carton;
Single set into a special plastic box;
Single set of three-layer wrapped package: polyethylene film tape or composite paper tape for inner layer; fastening tape for middle layer; waterproof and saturated plastic tape for outer layer.
4 extra large bearings:
Single set of three-layer wrapped package (same as above);
Single-layer four-layer wrapped package: wrapped in the above three layers wrapped; the outermost layer is wrapped in a layer of linen tape.
For separable tapered roller bearings with an outer diameter of ≥150mm; the polyethylene film should be placed before the inner and outer components before packaging; or the inner and outer components should be separated and packaged separately.
For exchangeable cylindrical roller bearings with an outer diameter of ≥150mm; it is simply scratched by the package; it can usually be separated and packaged separately by the components inside the watch.
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