Heavy Duty 28" Office Chair

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28" Heavy Duty Office Chair Base Replacement, Universal Swivel Chair Base with Gas Lift Cylinder & 60Mm Casters, 350 Lb Load Capacity for Office & Gaming Chairs Description Age Range Description Adult Item Dimensions 28 x 28 x 19.5 inches Item Depth 28 inches Material Type Alloy Steel, Plastic Theme Star Model Number RCBYZDZ01 Frame Material Type Plastic Unit Count 1.0 Count Material Alloy Steel, Plastic Required Assembly Yes Manufacturer Part Number RCBYZDZ01 Maximum Weight Recommendation 350 Pounds Model Name Chair Base Replacement Leg Style wheels Additional Features Adjustable Height, Ergonomic Item Weight 13 Pounds Color Black Item Dimensions D x W x H 28"D x 28"W x 19.5"H Shape Round Seat Depth 28 inches Included Components Base x 1, Caster x 5, Cylinder x 1, Office Chair Parts Bottom Plate x 1 Product Dimensions 28"D x 28"W x 19.5"H Style Name Industrial

• Heavy-Duty Reinforced Composite Chair Base – Supports up to 350 lbs: Constructed with an industrial-grade reinforced structural composite body and a solid steel mounting core, this 28-inch heavy-duty replacement chair base supports up to 350 lbs, offering superior stability compared to standard plastic or lightweight bases. Designed to withstand daily use, it helps reduce wobbling, tilting, and long-term wear—ideal for office work, gaming, and extended sitting sessions.
• 28" Universal Replacement Base for Most Office & Gaming Chairs: Designed to fit most standard swivel and tilt office chairs, including executive chairs, task chairs, and gaming chairs. The seat plate has a fixed mounting hole with a distance of 10.2" x 6", making it a dependable solution for replacing cracked or broken chair bases without the cost of replacing the entire chair. Its sturdy construction ensures long-term stability and durability.
• Smooth Gas Lift Height Adjustment (14.5"–19.5"): Equipped with a heavy-duty pneumatic gas lift cylinder providing approximately 5 inches of smooth height adjustment, allowing you to easily set the seat height from 14.5" to 19.5". Helps maintain proper posture, improve desk alignment, and support long hours of comfortable sitting.
• 5 Durable 60mm Casters – Smooth, Stable & Quiet Rolling: Includes five 60mm swivel casters designed for heavy use, offering smooth and controlled rolling on hardwood floors, tile, vinyl, and low-pile carpet. Enhances mobility while maintaining stability, making repositioning your chair effortless in home offices, game rooms, or workspaces.
• Easy Installation – Complete Replacement Chair Base Kit: Designed for quick and straightforward installation using standard office chair components—no special tools required. Package includes the chair base, gas lift cylinder, and casters for a hassle-free replacement experience. ⚠️ Note: Mounting screws and nuts are not included. Please reuse the original hardware from your existing chair.

Product description 28" Heavy Duty Office Chair Base Replacement, Universal Swivel Chair Base with Gas Lift Cylinder & Casters, 350 lb Capacity for Office & Gaming Chairs

Upgrade your office or gaming chair with this 28 Heavy Duty Replacement Chair Base. Constructed with a reinforced steel bracket, this base supports up to 350 lbs, providing enhanced stability and durability compared to standard plastic or lightweight bases. Equipped with a smooth gas lift cylinder for height adjustment and 5 durable 60mm swivel casters for effortless mobility, it allows full 360° swivel and tilt functionality. Designed to fit most standard swivel and tilt office chairs, including executive and gaming chairs, this replacement base is an easy and cost-effective way to extend the life of your chair. Quick and simple to install, it ensures a secure and stable seating experience for years of everyday use.

Specification

Base Diameter : 28"

Load Capacity: 350 lbs

Height Adjustment:14.5″ – 19.5

Gas Lift Cylinder: Heavy-duty pneumatic, 5″ travel

Mounting Hole: Fixed, 10.2"× 6"

Casters :5 x 60 mm swivel, each rated 110 lbs

Compatible Chairs: Most office, desk, executive, and gaming swivel chairs

Package Includes: Base, Gas Cylinder, Seat Plate, 5 Casters

Installation: Easy, no special tools required (mounting screws not included)

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