World-Class Mounting Systems

Size Guide

Ball Sizes
Arm Sizes
X
The unique double ball and socket design allows you to adjust your mount to the perfect viewing or operating angle, all with the turn of a single knob. This modular design can be configured with a variety of interchangeable components to fit your specific mounting needs.
B Size
Holds 2 lbs / 0.91 KG
1" Ball
Phones, Action Cameras, Light Duty Tablets
C Size
Holds 4 lbs / 1.81 KG
1.5" Ball
Fishfinders, Heavy Duty Tablets
D Size
Holds 6 lbs / 2.72 KG
2.25" Ball
Monitors, Large Fishfinders
E Size
Holds 15 lbs / 6.8 KG
3.38" Ball
Heavy Monitors
Ball Sizes Short Arm Medium Arm Long Arm
B Size Overall Length 2.42" / 6.1468cm 3.73" / 9.47cm 6.00" / 15.24cm
Socket-to-Socket Length 1.75" / 4.45cm 3.00" / 7.62cm 5.31" / 13.49cm
C Size Overall Length 3.56" / 9.04cm 5.69" / 14.45cm 9.13" / 23.19cm
Socket-to-Socket Length 2.50" / 6.35cm 4.66" / 11.84cm 8.00" / 20.32cm
D Size Overall Length 5.10" / 12.95cm 8.44" / 21.44 12.98" / 32.97
Socket-to-Socket Length 3.60" / 9.14cm 6.88" / 17.48cm 11.41" / 28.98cm
E Size Overall Length 7.31" / 18.57cm 12.63" / 32.08cm N/A
Socket-to-Socket Length 4.98" / 12.65cm 9.88" / 25.10cm N/A

RAM® Friction Hinge 6" Arm & 6" Swing Arm with Ball for Tough-Bar™

SKU Copied
SKU: RAM-TB-FHA3-SW1BU
UPC Copied
UPC: 793442027871

RAM® Friction Hinge 6" Arm & 6" Swing Arm with Ball for Tough-Bar™
Copy SKU
SKU: RAM-TB-FHA3-SW1BU
Copy UPC
| UPC: 793442027871

C SIZE
Size Guide
The RAM Friction Hinge 15.24cm (6") Arm & 15.24cm (6") Swing Arm with Ball for Tough-Bar (RAM-TB-FHA3-SW1BU) is a versatile attachment designed to mount a keyboard or other accessories to the RAM Tough-Bar with smooth, controlled adjustability. This system combines a 15.24cm (6") friction hinge arm, a 15.24cm (6") swing arm, and a C size RAM ball for full multi-axis positioning. The friction hinge delivers precise single-axis pivoting, ideal for moving a keyboard side to side, while the swing arm adds 360 of horizontal rotation. The integrated ball and socket connection allows for fine tilt adjustments, letting you position your accessory exactly where you need it or quickly move it aside to access vehicle controls. The built-in cable retention feature keeps cords neatly organized and secured along the arm, preventing snags or strain during adjustment. For added protection, the Collar-Lock system acts as a rotational limiter, blocking over-rotation that could send the mount into the dashboard during movement or impact. Together, these components ensure stable, vibration-resistant performance in demanding environments. Complete with a round ball base for compatibility across the RAM Mounts ecosystem, the Friction Hinge 15.24cm (6") Arm & Swing Arm for Tough-Bar offers rugged flexibility and clean cable management for fleet, commercial, and personal vehicle setups.

Features
  • Combines a 15.24cm (6") friction hinge arm and a 15.24cm (6") swing arm for precise single-axis pivoting and full 360° horizontal rotation
  • Integrated Collar-Lock™ system prevents over-rotation to protect devices and vehicle interiors during adjustment or impact
  • Built-in cable retention keeps cords organized
  • Backed by a lifetime warranty

Information

Resources

Information

Product Weight
0.94 kg (2.08 lbs)
Hardware Included
Assembly Hardware
Product Dimensions
Length: 30.12cm (11.86") (center clamp to center socket)
Hole Pattern
4-Hole AMPS: 3.00 cm (1.181") X 3.80 cm (1.496") 3-Hole 120-Degree: 4.60cm (1.812") Diameter
Ball Size
C Size ( 3.81cm (1.5") )
Weight Capacity
Standard Use: 1.81 kg (4 lbs) Heavy-Duty Use: 1.36 kg (3 lbs)
Materials
Marine-grade aluminumHigh strength composite
Packaging Type
Poly Bag

Resources

INSTRUCTIONS
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