The 8-inch ball bearing swivel base plate manufactured and supplied by BLS Hardware are heavy-duty rotating turntable mechanisms engineered for commercial armchairs, bar stools, and recliners. Fabricated in our Jinli, Guangdong source factory from 2.0mm high-tensile Q235 carbon steel, these precision-stamped square turntables eliminate rotational friction, unwanted wobbling, and structural squeaking under heavy everyday commercial loads, ensuring 360-degree rotation across furniture service lifespans.
Within the comprehensive BLS hardware matrix, furniture manufacturers integrate this heavy-duty 8-inch ball bearing swivel base plate alongside structural metal sofa legs and multi-angle sofa hinges to assemble dynamic lounge seating. Swivel foundations also pair seamlessly with modular sofa connector hardware in modern sectional collections.
Key Features of the 8-Inch Ball Bearing Swivel Base Plate
- Full-Perimeter Ball Race: Packed with 40 to 50 solid carbon steel balls across the entire perimeter raceway, distributing downward loads evenly without tilting.
- Heavy Solid Center Rivet: Cold-forged center pin pressed under hydraulic tonnage guarantees permanent plate tension with zero axial separation.
- High-Gauge Q235 Steel: Stamped from 2.0mm to 2.5mm cold-rolled steel, resisting plate deformation under heavy dynamic loads exceeding 200 kg.
- Electrostatic Powder Coating: Finished in anti-rust classic matte black or zinc plating, tested for 24 to 48 hours of neutral salt spray.
- Slotted Universal Mounting: Pre-punched slotted holes accommodate center-to-center hole patterns from 175mm to 195mm for wood and metal bases.
| Parameter | Engineering Specification |
|---|---|
| Product Name | Heavy-Duty 8-Inch Ball Bearing Swivel Base Plate |
| Outer Dimensions | 198 mm × 198 mm (Thickness: 22 mm) |
| Material Grade | Q235 High-Tensile Cold-Rolled Carbon Steel |
| Plate Thickness | 2.0 mm Standard (Custom 2.5 mm available) |
| Bearing System | Full-Ring Track with 40–50 Precision Steel Balls |
| Slotted Hole Spacing | 175 mm to 195 mm (Slotted Universal Pattern) |
| Corrosion Protection | 24 to 48 Hours Neutral Salt Spray (NSS) |
| Load Capacity | Dynamic Seating Weight Tested over 200 kg (440 lbs) |
Need Engineering CAD Models? Request 2D dimension blueprints and 3D STEP files for frame design verification.
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Target Furniture Applications
- Commercial Bar Stools: Withstands rigorous patron movement and rotational wear in busy hospitality spaces.
- Swivel Lounge Armchairs: Delivers smooth, quiet 360-degree rotation for residential and commercial reception seating.
- Marine and Boat Seating: Provides rigid, corrosion-resistant rotational support on marine cabin furniture.
- Display Showcase Turntables: Supports continuous revolving display fixtures in retail showrooms.
Three-Step Installation Guide
- Step 1: Position the lower plate over the chair pedestal base, aligning slots with frame holes.
- Step 2: Secure four countersunk fasteners firmly through the slotted channels into base anchors.
- Step 3: Rotate the upper plate forty-five degrees to reveal and fasten upper seat screws.
Factory Direct OEM and ODM Capabilities
BLS Hardware supports custom dimensions, slotted hole locations, and heavy-duty ball raceway specifications for global furniture manufacturers. In our Jinli facility, our tooling team manufactures custom 8-inch ball bearing swivel base plate configurations to match your exact furniture frames, seat heights, and load requirements.
Frequently Asked Questions
What is the mounting hole pattern on this 8-inch ball bearing swivel base plate?
The plate features pre-punched slotted mounting holes accommodating center-to-center hole spacing from 175mm to 195mm for imperial and metric frames.
Does this swivel plate feature full-ring ball bearings?
Yes, it utilizes a full-perimeter race packed with 40 to 50 solid carbon steel balls to prevent frame wobble under heavy loads.
Does the swivel mechanism include an auto-return spring function?
The standard model provides free 360-degree rotation. Torsion-spring memory return variants (90-degree or 180-degree) are available upon custom request.
Request Factory Direct Wholesale Pricing
Contact BLS Hardware for volume pricing, CAD drawings, and free sample turntables. Direct factory export from Guangdong.
WhatsApp: +86 138 2752 1875 | Email: ZK-ZhengKai@outlook.com
Address: Jinli Hardware Industrial Zone, Gaoyao District, Zhaoqing City, Guangdong Province, China.
