RAM® Friction Hinge 10" Socket Arm with Ball for Tough-Bar™

Part#: RAP-TB-FHA1-1BU
UPC: 793442037696

Kit Components

$81.49

Overview

The RAM® Friction Hinge 10" Socket Arm with Ball for Tough-Bar™ (RAP-TB-FHA1-1BU) is an attachment accessory that allows you to secure a keyboard or alternative accessory to the RAM® Tough-Bar™. Designed for smooth adjustability and vehicle safety, this mount combines a precision friction hinge with our Collar-Lock™ system. The friction hinge provides controlled, single-axis movement—allowing you to pivot your keyboard side to side for optimal positioning or to quickly access vehicle controls. Tighten the knob to hold your position firmly in place, or loosen it to reposition on the fly. The complementary Collar-Lock™ system acts as a protective stop on either side of the hinge, preventing over-rotation that could send the mount into the dashboard during adjustment or impact. Together, these components offer stable, vibration-resistant performance. This mount comes with a round ball base, ensuring RAM® Mounts compatibility for keyboards or DIY solutions. The built-in cable retention feature keeps cords neatly organized and secured along the arm, preventing snags or strain during adjustment. Ideal for fleet, service, and personal vehicles, the RAM® Friction Hinge Mount delivers streamlined adjustability and added protection for your device and vehicle interior.

Features

  • Enables smooth, single-axis side-to-side pivoting for optimal keyboard or accessory positioning
  • Integrated Collar-Lock™ system prevents over-rotation to protect devices and vehicle interiors during adjustment or impact
  • Includes a round ball base for use attaching keyboards or accessories
  • Built-in cable retention keeps cords organized
  • Backed by a lifetime warranty

hardware included:

Assembly Hardware

product dimensions:

Length: 9.86" (center clamp to center socket)

hole pattern:

4-Hole AMPS: 1.181" x 1.496"
3-Hole 120-Degree: 1.812" Diameter

ball size:

C Size (1.5")

weight capacity:

Standard Use: 4 lbs
Heavy-Duty Use: 3 lbs

materials:

High strength composite

packaging type:

Poly Bag

Weight:

0.78 lb

Return Policy:

All products purchased from RAM® can be returned within 30 days with no restocking fee (return shipping not provided). See full return policy here.

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Instructions

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RAM® Friction Hinge 10" Socket Arm with Ball for Tough-Bar™
$81.49

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size 1" ball
  • C Size — this product 1.5" ball
  • D Size 2.25" ball
  • E Size 3.38" ball

Every RAM® mount is built around a rubber ball and socket system. The ball size sets how much weight the mount can carry. Match it to your device for smooth adjustment with a rock-solid hold.

RAM Mounts ball size specifications and typical uses
Size Ball Diameter Max Load* Best For
A0.56" (14.3 mm)0.5 lbAction cameras and other ultra-light devices
B1" (25.4 mm)2 lbsPhones, GPS units, and small tablets — the most common size
C — this product1.5" (38.1 mm)4 lbsLarge tablets, fish finders, and rougher rides
D2.25" (57.2 mm)6 lbsRugged tablets, laptops, and heavy equipment
E3.38" (85.9 mm)15 lbsLarge displays and demanding aviation or industrial use

*Approximate capacity for a standard ball with a mid-length arm. Shorter arms and steel-reinforced posts increase real-world capacity.

Reading part numbers

The letter after RAM tells you the ball size: RAM-B-166 uses a 1" B ball, while RAM-D-201 uses a 2.25" D ball. C size parts are the exception and carry no letter, so RAM-201U is a C size arm.

Add-on & Accessories

RAM® Tough-Bar™
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