Office Chair Universal Casters

Office chair universal casters come in various types, prices, and replacement methods. Here is a detailed introduction:

I. Common Types and Prices The specifications and functions of office chair universal casters directly affect their prices. Common types include:

1. Basic Casters: For example, 1.4-inch load-bearing casters (snap-ring threaded universal casters) cost approximately ¥1.36. They are suitable for ordinary office settings with moderate load-bearing capacity. The 1.5-inch wear-resistant universal casters (¥3.8) enhance durability through thicker materials, making them suitable for frequent movement needs.
2. Special Function Casters: Silent lightweight casters (¥0.8) use soft materials or shock-absorbing designs to reduce movement noise, suitable for quiet environments. Cross-border Amazon 2-inch universal casters (¥1.45) may be optimized for export standards, offering strong compatibility.
3. Structural Difference Casters: The 2-inch insert-rod flat casters (¥3.1) simplify the replacement process with insert-rod installation and enhance stability with a flat design, suitable for heavy-duty office chairs.

II. Material and Function Selection The material of the casters directly affects their service life and applicable scenarios:

• Nylon/Polypropylene (PP): Lightweight and low-cost, but with weaker wear resistance, suitable for low-frequency use scenarios.
• Polyurethane (PU): Offers good silent performance and low friction, suitable for wooden floors or carpeted environments.
• Metal Core + Rubber Outer Layer: Strong load-bearing capacity and wear resistance, suitable for users with larger body weights or those who need frequent movement.

In terms of function, universal casters can rotate 360 degrees, offering high flexibility; directional casters only move forward and backward, providing stronger stability. The choice should be based on the design of the office chair. Some high-end casters also feature braking functions to fix the chair's position.

III. Replacement Steps and Precautions

1. Prepare Tools: No special tools are required, but it is recommended to wear gloves to prevent scratches.
2. Remove Old Casters: Turn the chair upside down, hold the root of the caster, and pull it out against the direction of the force core (usually counterclockwise). If it is a snap-ring design, press the snap-ring to release it.
3. Install New Casters: Align the new caster with the chair leg hole, insert it in the direction of the hole, and press it firmly until you hear a "click" sound or feel it is securely fastened.
4. Test Stability: After installation, push the chair to check if the casters rotate smoothly and are not loose.

Precautions: Before replacement, confirm that the caster specifications match the chair legs (such as diameter, insert-rod type); if the chair legs are rusty, apply lubricating oil to assist in removal; avoid using excessive force to prevent damage to the chair legs.