Points to pay attention to when packaging bearings

**Key Points to Consider When Packaging Bearings** Home > Bearing Knowledge > Key Points to Consider When Packaging Bearings After the bearing has been manufactured and passed quality inspection, it must be cleaned and treated for rust prevention before being placed in the inner packaging. The purpose of proper packaging is to ensure waterproofing, moisture resistance, dust protection, and shock absorption, thus preserving the bearing’s quality, precision, and usability. Bearing packaging is typically divided into two main categories: **inner packaging** and **outer packaging**. Each plays a critical role in maintaining the integrity of the product during storage and transportation. ### Inner Packaging Options Based on Rust Prevention Duration 1. **Short-term Rust Protection (3–6 months):** This type of packaging is suitable for large-volume deliveries where bearings will be used shortly after delivery. It is cost-effective and simple, ideal for bulk shipments with clear usage timelines. 2. **Standard Rust Protection (1 year):** This is the most common option for general-purpose bearings that are not stored for extended periods. It provides sufficient protection for regular use and short-term storage. 3. **Long-term Rust Protection (2 years):** Designed for high-precision or special bearings that may be stored for longer periods. This method ensures maximum protection against corrosion and damage. ### Materials Used in Inner Packaging - Polyethylene plastic tubes or boxes - Kraft paper and polyethylene composite paper - Cardboard boxes - Polyethylene or plastic films - Nylon or plastic fastening tapes - Waterproof and high-strength plastic tapes - Linen bags All materials must meet strict standards to ensure effective rust prevention and maintain the bearing's performance. ### Guidelines for Inner Packaging by Bearing Size - **Miniature Bearings:** Pack 10–15 units in a plastic cylinder, then place 5–10 cylinders in a box or bag. - **Medium and Small Bearings:** Wrap multiple sets in polyethylene film or kraft paper. Alternatively, place them in plastic cylinders or individual polyethylene bags sealed and packed into cartons. - **Large Bearings:** Wrap each unit in polyethylene film or composite paper, then place in a box. For extra protection, use a three-layer wrapping: inner layer with polyethylene tape, middle layer with fastening tape, and outer layer with waterproof plastic tape. - **Extra Large Bearings:** Use a three-layer wrap as described above, or add an additional layer of linen tape for enhanced protection. - **Separable Tapered Roller Bearings (≥150mm OD):** Ensure the inner and outer components are wrapped separately or placed in separate layers before packaging. - **Exchangeable Cylindrical Roller Bearings (≥150mm OD):** These can usually be packaged separately based on internal components. ### Outer Packaging Standards - **Double Corrugated Boxes:** Each box should weigh no more than 25 kg. Secure with plastic strapping. - **Nailed Wooden Boxes:** Each box should not exceed 30 kg. Secure with blue steel bands. - **Calcium Plastic Corrugated Boxes:** Each box should not exceed 25 kg. Secure with plastic strapping. When placing inner-packaged bearings into outer boxes, ensure that there is padding (e.g., plastic bags or films) inside the box. If there is empty space, fill it with dry materials like corrugated paper or paper scraps to prevent movement and damage. --- **Related Bearing Knowledge** - Features and uses of joint bearings - How to choose lubricants for light and medium load sliding bearings - Layout types and precautions for dynamic pressure bearings - Eight functional requirements of motor bearing grease - "SKF imported bearings should be replaced" – View This article is sourced from China Bearing Network. Please cite the source: http://www.chinabearing.net Previous: Hybrid Ceramic Bearings Next: Application of New Self-Smooth Plastic Sliding Bearings on Barrier Switches

Three Glass Two Cavity Insulated Glass

Three Glass Two Cavity Insulated Glass,Insulated Glass Panels,Single Silver Insulated Glass,Triple Glazed Insulated Glass

SHANDONG TOP LEADER GLASS CO.,LTD , https://www.topleaderglass.com