RAM® Double Ball Adapter - D Size

Part#: RAM-D-230U
UPC: 793442202308
$60.99
RAM® Double Socket Arm - D Size Long

RAM® Double Socket Arm - D Size Long

$131.99

Overview

The RAM-D-230U is a 2.25" double ball connector, allowing you to connect two socket arms together and maintain a flexible mount.

ball size:

D Size (2.25")

weight capacity:

Standard Use: 6 lbs
Heavy-Duty Use: 5 lbs

materials:

Marine-grade aluminum

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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Knowledge Base: Ball Sizes

QUESTIONS & ANSWERS

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  • What is the shaft distance between the D-Balls and the shaft diameter for the Double Ball Adapter RAM-D-230U?

    The diameter of the shaft is about 0.97" and the length of hte shaft (from ball base to ball base) is about 1.63"

  • What is the diameter of the D size balls

    This product has our 2.25" ball size on each end.

  • what is the distance between the center lines of the 2.25 balls?

    The center distance between the two D size balls is 2.875".
RAM® Double Ball Adapter - D Size
$60.99

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size 1" ball
  • C Size 1.5" ball
  • D Size — this product 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
C1.5" (38.1 mm)4 lbsLarge tablets, fish finders, and rougher rides
D — this product2.25" (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.

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