RAM® Ball Base for Crown Work Assist® - D Size

Part#: RAM-D-202U-CRO1
UPC: 793442943942

Compatibility
$44.49

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.

Overview

The Crown ball base contain mounting holes aligned to work with Crown Work Assist® clamp accessories. The addition of the RAM mounting system allows you to position your accessories for the best access and prevent damage due to shock and vibration.

hole pattern:

See Drawing

ball size:

D Size (2.25")

weight capacity:

6 lbs

materials:

Marine-grade aluminum

packaging type:

Poly Bag

Weight:

0.57 lb

Additional Information:

Crown Work Assist® Clamp not included with purchase.

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.

Print

Documents

Hole Pattern Reference Guide
Material Handling Catalog
Knowledge Base: Ball Sizes

QUESTIONS & ANSWERS

Have a Question?

Ask a Question

  • I cannot find a drawing for this part and need the hole size and dimensions -- RAM-D-202U-CRO1

    The 4-hole spacing for the RAM-D-202U-CRO1 is 1" x 1.75" with 2.5" distance between the wider 2-hole pattern.  RAM recommends using M5x14 screws for the 4-hole pattern and either M6x14 or M6x25 screws for the 2-hole pattern.
RAM® Ball Base for Crown Work Assist® - D Size
$44.49

Add-on & Accessories