RAM® Double Socket Arm with Retention Knob - B Size Medium

Part#: RAM-B-201-ALA1-KRU
UPC: 793442944628

Kit Components

$32.99

Overview

The RAM-B-201-ALA1-KRU, STANDARD length double socket arm with retention knob, has a socket at both ends that accommodates 1" ball bases. A single spring inside the arm opens the end sockets, allowing you to pivot the ball and socket connection. The knob extension allows for easy adjustment of the mount and prevents over loosening of the knob. This socket technology allows for almost infinite adjustment and perfect viewing angles.

product dimensions:

Overall Length: 3.73"

socket to socket length:

3"

ball size:

B Size (1")

weight capacity:

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

materials:

Marine-grade aluminum

packaging type:

Poly Bag

Weight:

0.41 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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QUESTIONS & ANSWERS

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  • Does the knob extension come off once full tightened? I want a double socket with no remaining knob once set.

    No, the knob is not removable once installed and tightened. If you're looking to remove the knob for security purposes, you may be interested in RAP-S-KNOB3U. The knob on RAP-S-KNOB3U cannot be loosened after installation to prevent removing or modifying the device or mount.

RAM® Double Socket Arm with Retention Knob - B Size Medium
$32.99

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.

Add-on & Accessories

Ball Bases - B Size 1" Ball
See All
RAM® Torque™ Small Rail Base RAM-B-408-37-62U $28.99
RAM® Magnetic Ball Base RAM-B-202-339U $34.99
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