World-Class Mounting Systems

Size Guide

Ball Sizes
Arm Sizes
X
The unique double ball and socket design allows you to adjust your mount to the perfect viewing or operating angle, all with the turn of a single knob. This modular design can be configured with a variety of interchangeable components to fit your specific mounting needs.
B Size
Holds 2 lbs / 0.91 KG
1" Ball
Phones, Action Cameras, Light Duty Tablets
C Size
Holds 4 lbs / 1.81 KG
1.5" Ball
Fishfinders, Heavy Duty Tablets
D Size
Holds 6 lbs / 2.72 KG
2.25" Ball
Monitors, Large Fishfinders
E Size
Holds 15 lbs / 6.8 KG
3.38" Ball
Heavy Monitors
Ball Sizes Short Arm Medium Arm Long Arm
B Size Overall Length 2.42" / 6.1468cm 3.73" / 9.47cm 6.00" / 15.24cm
Socket-to-Socket Length 1.75" / 4.45cm 3.00" / 7.62cm 5.31" / 13.49cm
C Size Overall Length 3.56" / 9.04cm 5.69" / 14.45cm 9.13" / 23.19cm
Socket-to-Socket Length 2.50" / 6.35cm 4.66" / 11.84cm 8.00" / 20.32cm
D Size Overall Length 5.10" / 12.95cm 8.44" / 21.44 12.98" / 32.97
Socket-to-Socket Length 3.60" / 9.14cm 6.88" / 17.48cm 11.41" / 28.98cm
E Size Overall Length 7.31" / 18.57cm 12.63" / 32.08cm N/A
Socket-to-Socket Length 4.98" / 12.65cm 9.88" / 25.10cm N/A

RAM® Double Ball Yoke Clamp Mount with Diamond Plate

SKU Copied
SKU: RAM-B-121-A-238
UPC Copied
UPC: 793442937583
Ram B 121 A 238jpg
Ram Live Ep 26 Latest Aviation Mounting Solutions

RAM® Double Ball Yoke Clamp Mount with Diamond Plate
Copy SKU
SKU: RAM-B-121-A-238
Copy UPC
| UPC: 793442937583

B SIZE
SHORT ARM
Size Guide
Overview

The RAM-B-121-A-238 consists of a yoke clamp base, SHORT length double socket arm and 2.43" / 6.17cm
x 1.31" / 2.54cm / 3.33cm diamond base. The yoke clamp base will fit rails in diameter from 0.625" / 1.59cm to a maximum
of 1.25" / 3.18cm. The 1" / 2.54cm rubber ball is at a right angle to the plane of the mount; when connected to
a rail, the ball sits parallel to the rail. The diamond base has two holes 1.912" / 4.86cm from center
to center, matches the industry standard AMPS hole pattern and will connect to a large
variety of RAM Mount and third party cradles. The mount is designed with a RAM 1" / 2.54cm diameter
patented rubber ball and socket system that has adjustment points at both ends of the double
socket arm, allowing for almost infinite adjustment and perfect viewing angles.

Information

Resources

Information

Clamp Range
.625" / 1 587.50cm - 1.25" / 3.18cm
Socket-to-Socket Length
1.75" / 4.45cm
Hole Pattern
2-Hole AMPS: 1.912" / 4.86cm
Ball Size
B Size (1" / 2.54cm)
Weight Capacity
Standard Use: 2 lbs / 0.907kg
Heavy-Duty Use: 1 lb / 0.454kg
Materials
Marine-grade aluminum
Packaging Type
Retail Bag
Weight
0.76 lbs / 0.345kg.

Resources

Documents
Related Videos
Ram Live Ep 26 Latest Aviation Mounting Solutions
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Components

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RAM-B-121BU
RAM® Yoke Clamp Base with Ball
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RAM-B-201U-A
RAM® Double Socket Arm - B Size Short
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RAM-B-238U
RAM® Diamond Ball Base - B Size


Complete Your Solution

Accessories

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RAM-B-273U
RAM® Add-A-Ball™ Accessory Ball for B Size Socket Arms

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