RAM® Double Ball Mount with Backing Plate

Part#: RAM-B-101U-225B2
UPC: 793442820168

Kit Components

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$48.49

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size — this product 1" ball
  • C Size 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
B — this product1" (25.4 mm)2 lbsPhones, GPS units, and small tablets — the most common size
C1.5" (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.

Overview

The RAM-B-101U-225B2 consists of a double socket arm, two 2.5" diameter round bases that contain the universal AMPS hole pattern, a 2.10" x 2.60" backing plate, and mounting hardware. The mount is designed with a 1" diameter rubber ball and socket system that features adjustment points at both ends of the double socket arm, allowing for near-infinite adjustability for ideal viewing angles.

Features

  • 2.10" x 2.60" steel backing plate attaches to a variety of RAM® Mounts ball bases
  • 2.5" round plate with B size 1" RAM® rubber ball connects to RAM® device holders containing the universal AMPS hole pattern; includes B size medium length double socket arm
  • Made of stainless steel and high-strength composites for durability and reliability in the most demanding environments
  • Backed by a lifetime warranty

hardware included:

(1) 2.10" x 2.60" Steel Backing Plate
(4) #8-32 x 1" Screws
(4) #8 Split Lock Washers
(4) #8 Flat Washers

product dimensions:

Overall Height: 5"

socket to socket length:

3"

hole pattern:

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

plate size:

2.5" Diameter
3" x 3" Square Plate

ball size:

B Size (1")

weight capacity:

Standard Use: 2 lbs
Heavy-Duty Use: 1 lb

materials:

Marine-grade aluminum
Stainless steel

packaging type:

Poly Bag

Weight:

0.84 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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Documents

Transportation Catalog

QUESTIONS & ANSWERS

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RAM® Double Ball Mount with Backing Plate
$48.49

Add-on & Accessories

Locking Knobs
RAM® Pin-Lock™ Security Knob for B Size Socket Arms RAP-S-KNOB3U $9.49
RAM® Key Lock Knob with Steel Insert for B Size Socket Arms RAM-KNOB3LSU $31.49
RAM® Key Lock Knob with Brass Insert for B Size Socket Arms RAM-KNOB3LU $43.99
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Add-A-Ball™
RAM® Add-A-Ball™ Accessory Ball for B Size Socket Arms RAM-B-273U $12.49