Office Chair Caster Categories

Office chair casters come in a variety of categories, primarily classified by function, material, and size.

Classification by Function:

1. Standard Swivel Casters: These are the most common type, such as 3-inch black PU-rimmed office chair casters with a SWIVEL caster type, no brake, a load capacity of 45 kg, a stem-mounted insertion type, and a diameter of 75 mm. They are characterized by their ability to rotate 360 degrees freely, making them suitable for various office chair applications that require flexible movement.
2. Swivel Casters with Brake Function: These casters add braking functionality to the standard swivel casters. For example, seat-brake casters can roll normally but automatically lock when someone sits on the chair, preventing it from sliding; there are also casters with brake pads that can be fixed by operating the brake pads, suitable for scenarios that require temporary fixation.
3. Fixed Casters: Once inserted, the chair cannot move, making them suitable for scenarios where the chair needs to remain stationary, such as beside certain specific workbenches or conference tables.

Classification by Material:

1. PU Material: Such as 3-inch black office chair casters, PU material offers good elasticity, wear resistance, and tear resistance, ensuring smooth and quiet rolling, reducing noise, and protecting floors from scratches. It is a commonly used material for office chair casters.
2. TPR Material: Ergoto's TPR casters have a single-wheel load capacity of 50 KG and offer quiet operation and floor protection. TPR material combines the advantages of rubber and plastic, providing both elasticity and good wear resistance, suitable for home office chairs, computer desks, and various DIY scenarios.
3. TPU Material: Ergoto's TPU casters also have a single-wheel load capacity of 50 KG and use a combination of materials such as polyurethane and nylon to meet different load requirements of customers. TPU material offers high strength, high toughness, wear resistance, and oil resistance, making it suitable for home office chairs and computer desks with higher load requirements.

Classification by Size:
Office chair casters come in various sizes, with common ones being 2 inches, 2.5 inches, and 3 inches. Different sizes of casters are suitable for office chairs of different sizes and various usage scenarios. For example, 2-inch casters are relatively compact and suitable for some lightweight office chairs; 3-inch casters are larger and have stronger load-bearing capacity, suitable for heavier office chairs or scenarios that require frequent movement.