Description
The 50mm Standard: The 50mm (approx. 2-inch) diameter is globally recognized as the perfect balance for ergonomic task chairs and kids’ seating. It maintains a low, stable center of gravity while easily clearing standard carpets and hard floors.
Universal Stem Compatibility: Engineered to fit standard aluminum or nylon 5-star bases flawlessly. Our precision-machined stems (typically 11x22mm grip ring) guarantee a snug, wobble-free installation—eliminating the loose, rattling wheels that lead to customer complaints.
Optimized Weight Distribution: The 64mm installation height and dual-wheel design (50.5mm total width) are scientifically calculated to distribute commercial loads evenly, preventing base cracking and ensuring a silent, frictionless roll.
Real-World Application: Ergonomic Children’s Seating When manufacturing premium kids’ furniture, aesthetic harmony and child safety are your ultimate selling points. As shown in the study desk setup above, our hardware seamlessly integrates into your proprietary designs:
Custom Color Injection: Notice the flawless color match? We don’t just supply standard white chair casters. We customized the PU tread in a specific pastel blue to perfectly match the chair’s fabric and the desk’s architectural accents, elevating the entire product’s perceived value.
Intelligent “Sit-to-Brake” Safety: Designed specifically for active children. Once the child sits down (applying 20kg+ of weight), the internal mechanism instantly locks the white chair wheels in place. This prevents dangerous sliding, keeps the child perfectly aligned with their desk, and dramatically improves their study focus.
Testing & Quality Assurance: Engineered to Eliminate Warranty Claims
A failing caster means costly customer returns. Watch our rigorous in-house stress tests that prove why our components deliver a zero-maintenance experience.
BIFMA Dynamic Rolling Test
Extreme fatigue testing—rolling over solid obstacles for 100,000+ cycles under load. Ensures the wheel core and raceway never deform.
Heavy-Duty Static Load
Thickened steel brackets and precision bearings easily support maximum BIFMA weight thresholds without stem bending or housing cracking.
Salt Spray Anti-Corrosion
11x22mm stems and housings endure extreme salt spray tests, guaranteeing long-lasting rust prevention for ocean freight and humid climates.
Scientific Material Ratio
A strictly controlled ratio of premium virgin nylon/PU with trace structural composites prevents brittleness and maximizes impact resistance.
Packaging & Logistics: Global Supply Chain Security
Delivering components safely, maximizing container space, and ensuring on-time arrivals separate a true manufacturing partner from a basic supplier.
Frequently Asked Questions
Q1: What is your Minimum Order Quantity (MOQ)?
A: Our standard MOQ is 500 sets. We maintain this baseline to ensure efficient production while remaining accessible for wholesale and manufacturing clients.
Q2: Are product samples available before placing a bulk order?
A: Yes. Standard samples are available and can be dispatched within 7 days, allowing your technical team to conduct in-house fitment and durability tests.
Q3: What are your quality standards for casters?
A: All our white office chair wheel casters strictly meet BIFMA and SGS testing standards, ensuring structural integrity and long-term durability.
Q4: What payment terms do you accept?
A: We offer flexible payment options to match your procurement process, including T/T (Telegraphic Transfer), PayPal, and L/C (Letter of Credit).
Q5: What is the standard delivery time for orders?
A: Our standard production and delivery time ranges from 15 to 30 days, depending on the order volume and specific configuration.
Q6: What trade terms do you support?
A: We support a wide range of international trade terms to suit your logistics needs, including EXW, FOB, C&F, DDP, and DDU.
Q7: What is the difference between a caster, a wheel, and a roller?
A: The three terms are often used interchangeably, but they mean different things.
A caster is the complete assembly — swivel bracket, stem, and wheel — ready to install directly onto chairs, tables, or other furniture.
A wheel is only the round rolling component inside the caster. Material and diameter determine floor compatibility and load performance.
A roller is a narrow single-wheel caster, similar in profile to an inline skate wheel, optimised for smooth gliding on hard surfaces.
For procurement: always specify the full caster, not just the wheel. Include stem type, wheel diameter, floor type, and load requirement — this is what your supplier needs to match the correct component.
Q8: When should I specify a locking caster for my furniture lines?
A: A locking caster (or brake caster) should be integrated whenever the user requires stationary stability during a task. They are highly recommended for sit-to-stand desk chairs, study chairs (focus-enhancing ergonomic seating), medical stools, and elevated bar chairs.
Q9: Which caster material should I choose for hard floors versus carpets?
A: For hard floors (hardwood, tile, concrete), choose Polyurethane (PU) or soft rubber casters to ensure scratch-free protection and a whisper-quiet glide. For soft surfaces (thick carpets or office rugs), choose Hard Nylon casters; their lower rolling resistance cuts through fibers, eliminating drag and strain.
Q10: How do I select the right caster diameter for different types of furniture?
A: Diameter impacts mobility and load clearance:
- 40mm (1.5-inch): Ideal for lightweight product stands, such as clothes racks, small appliance bases, and potted plant bases.
- 50mm (2-inch): The industry standard, perfect for standard office chairs, light shelving, and standard mobile whiteboards.
- 60mm – 65mm (2.5-inch): Ideal for premium ergonomic chairs and heavy-duty gaming chairs.
- 75mm (3-inch) or larger: Highly recommended for heavy utility carts, large industrial equipment, and medical rolling stations requiring maximum clearance and effortless movement.
Ready to upgrade your seating hardware?
Drop us an email with your sourcing requirements or project blueprints, and our technical team will respond with accurate B2B pricing within 24 hours.
📥 Request a Factory Quote & Sample Today
