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NTN Bearing Inner Packaging Methods and Data Requirements

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When it comes to the packaging of NTN bearings, proper internal packaging is essential to ensure product protection during transportation and storage. The method varies depending on the size and type of the bearing. Here are the detailed guidelines: 1. **Miniature NTN Bearings**: Each set of 10–15 miniature NTN bearings is placed into a plastic cylinder. These cylinders are then packed into a carton, bag, or roll for further handling. 2. **Medium and Small NTN Bearings**: Bearings are wrapped in polyethylene film, kraft paper, or composite polyethylene paper. They are then placed into a plastic tube or box. Each individual bearing is also placed in a polyethylene film bag. The bag's mouth is folded or sealed before being placed into a larger carton. 3. **Large NTN Bearings**: Large bearings are first wrapped in polyethylene film or composite paper. Then they are placed into a carton with a polyethylene film bag. Each single bearing is folded and placed in a special plastic box. For extra protection, a three-layer wrapping system is used: an inner layer of polyethylene tape or composite paper, a middle layer of fastening tape, and an outer layer of waterproof and saturated plastic tape. 4. **Extra Large NTN Bearings**: These bearings use a similar three-layer wrapping method as large bearings. Additionally, a four-layer wrapping option is available, where the outermost layer is wrapped with linen tape for added strength and durability. For separable tapered roller bearings with an outer diameter of ≥150mm, a polyethylene film should be placed between the inner and outer components before packaging, or the components can be packaged separately. For exchangeable cylindrical roller bearings with an outer diameter of ≥150mm, due to their simple structure and risk of damage, it’s common to package them individually using internal components. **Outer Packaging Guidelines** (as analyzed by experts in the bearing trading network): 1. Double corrugated cardboard boxes are typically used. The gross weight per box should not exceed 25kg. A plastic wrap is applied around the box and secured with strapping. 2. Wooden crates (nail boxes) are used for heavier loads, with a maximum weight of 30kg per box. These are secured with blue steel straps. 3. Calcium plastic corrugated boxes are another option, with a weight limit of 25kg per box. These are strapped with plastic strapping. When placing internally packaged NTN bearings into outer boxes, it’s important to first line the box with a plastic bag or film. If there is empty space, it should be filled with dry materials like corrugated paper or paper scraps to prevent movement and damage. --- **Related Bearing Knowledge** Bearing data analysis after inspection of “double row deep groove ball bearing” damage, details of bearing operating conditions and environmental factors, low-noise bearing selection methods. This article is linked to http:// Please indicate the bearing network http:// Previous: KOYO Motor Bearing Abnormal Sound Analysis and Processing Next: Bearing Ring Grinding Super Processing New Skills and Development (1) --- (Word count: 512)

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