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Bearing inner packaging is mainly divided into the following three kinds of ‌ according to the rust prevention period:

‌ short-term anti-rust packaging ‌ : anti-rust period of 3~6 months, suitable for large quantities shipped to the same subscriber, put into use in a short time. This type of packing is usually in plain packing for ease of use ‌12.

‌ general anti-rust period packaging ‌ : the anti-rust period is one year, suitable for general purpose bearings. This packing is suitable for most general purpose bearings ‌12.

‌ long-term anti-rust packaging ‌ : anti-rust period of two years, suitable for special and precision bearings. This packaging method can provide longer anti-rust protection and is suitable for bearings with higher anti-rust requirements ‌23.

Bearing inner packaging materials and packaging methods

Bearing inner packaging materials include polyethylene plastic tube (box), kraft paper, plain and corrugated polyethylene composite paper, paper box, polyethylene or polyethylene plastic film, nylon fastening belt or plastic fastening belt, waterproof high-strength plastic belt, hemp bag, etc. These materials need to ensure that the corrosion resistance of the material is qualified ‌2.

‌ micro-bearing ‌ : Every 10 to 15 sets of bearings are packed into a plastic cylinder, and every 5 to 10 plastic cylinders are packed into a paper box (or bag or roll).

‌ medium and small bearings ‌ : multiple sets of bearings are rolled with polyethylene film, kraft paper or polyethylene composite paper; Multiple sets of bearings are loaded into a plastic cylinder (box); The single set of bearings should be packed in a polyethylene film bag, folded or sealed, and then packed into a carton.

‌ large bearing ‌ : with polyethylene film or polyethylene composite paper after a single set of packaging, then into a carton; With polyethylene film bag, a single set of packaging folding bag mouth, then put into a carton; Single set into a special plastic box; A single set of three-layer wrapping package: the inner layer is made of polyethylene film tape or composite paper tape, the middle layer is made of fastening tape, and the outer layer is made of waterproof permeable plastic tape.

‌ extra-large bearing ‌ : single set of three layers wrapped packaging; Single-by-four layer wrapping package: After the above three layers wrapping package, wrap another layer of linen tape around the outer layer.

‌ detachable tapered roller bearings ‌ : before packing the inner and outer components should be lined with polyethylene film, or the inner and outer components should be packed separately.

‌ interchangeable cylindrical roller bearing ‌ : because the complete set of packaging is easy to hurt, it can generally be separately packaged with internal and external components ‌2.