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RAM® Curved Extension Base with Ball | |
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Part #:
RAM-B-125BU
UPC:
793442921711
|
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Product Information | |
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Overview | The RAM-B-125BU, curved extension base includes a 1" rubber ball, allowing for near-infinite adjustment and perfect viewing angles. Originally designed to position your GPS in front of the yoke on your plane, the extension plate can also be used in many other applications. The mounting section of the plate is a 2.5" square with pre-drilled holes for many different screw hole patterns, including the universal AMPS hole pattern. The connection section extends approximately 2.25" forward, at a 45 degree angle, from the center of the 1" ball and approximately 1.5'' above the 1" ball (to the bottom of the connection section of the plate). |
Specifications | |
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hole pattern | Various AMPS Hole Patterns |
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 | 0.26 lb |

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 by a multitude of interchangeable components to fit your specific needs.

A Size
Holds .5 lbs.
Trail Cameras

B Size
Holds 2 lbs.
Phones, Action Cameras, Light Duty Tablets

C Size
Holds 4 lbs.
Fishfinders, Heavy Duty Tablets

D Size
Holds 6 lbs.
Heavy Monitors

E Size
Holds 15 lbs.
Heavy Monitors
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.
Size | A Size | B Size | C Size | D Size | E Size |
---|---|---|---|---|---|
Short Arm | Overall Length N/A |
Overall Length 2.42" |
Overall Length 3.56" |
Overall Length 5.69" |
Overall Length 5.69" |
Socket-to-Socket Length N/A |
Socket-to-Socket Length 1.75" |
Socket-to-Socket Length 2.5" |
Socket-to-Socket Length 4.66" |
Socket-to-Socket Length 4.66" |
|
Medium Arm | Overall Length 2.42" |
Overall Length 3.73" |
Overall Length 5.69" |
Overall Length 8.44" |
Overall Length 12.63" |
Socket-to-Socket Length 1.75" |
Socket-to-Socket Length 3" |
Socket-to-Socket Length 4.66" |
Socket-to-Socket Length 6.88" |
Socket-to-Socket Length 9.88" |
|
Long Arm | Overall Length 6" |
Overall Length 6" |
Overall Length 9.13" |
Overall Length 12.98" |
Overall Length N/A |
Socket-to-Socket Length 5.31" |
Socket-to-Socket Length 5.31" |
Socket-to-Socket Length 8" |
Socket-to-Socket Length 11.41" |
Socket-to-Socket Length N/A |

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 by a multitude of interchangeable components to fit your specific needs.

A Size
Holds .5 lbs.
Trail Cameras

B Size
Holds 2 lbs.
Phones, Action Cameras, Light Duty Tablets

C Size
Holds 4 lbs.
Fishfinders, Heavy Duty Tablets

D Size
Holds 6 lbs.
Heavy Monitors

E Size
Holds 15 lbs.
Heavy Monitors
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.
Size | A Size | B Size | C Size | D Size | E Size |
---|---|---|---|---|---|
Short Arm | Overall Length N/A |
Overall Length 2.42" |
Overall Length 3.56" |
Overall Length 5.69" |
Overall Length 5.69" |
Socket-to-Socket Length N/A |
Socket-to-Socket Length 1.75" |
Socket-to-Socket Length 2.5" |
Socket-to-Socket Length 4.66" |
Socket-to-Socket Length 4.66" |
|
Medium Arm | Overall Length 2.42" |
Overall Length 3.73" |
Overall Length 5.69" |
Overall Length 8.44" |
Overall Length 12.63" |
Socket-to-Socket Length 1.75" |
Socket-to-Socket Length 3" |
Socket-to-Socket Length 4.66" |
Socket-to-Socket Length 6.88" |
Socket-to-Socket Length 9.88" |
|
Long Arm | Overall Length 6" |
Overall Length 6" |
Overall Length 9.13" |
Overall Length 12.98" |
Overall Length N/A |
Socket-to-Socket Length 5.31" |
Socket-to-Socket Length 5.31" |
Socket-to-Socket Length 8" |
Socket-to-Socket Length 11.41" |
Socket-to-Socket Length N/A |

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Overview
The RAM-B-125BU, curved extension base includes a 1" rubber ball, allowing for near-infinite adjustment and perfect viewing angles. Originally designed to position your GPS in front of the yoke on your plane, the extension plate can also be used in many other applications. The mounting section of the plate is a 2.5" square with pre-drilled holes for many different screw hole patterns, including the universal AMPS hole pattern. The connection section extends approximately 2.25" forward, at a 45 degree angle, from the center of the 1" ball and approximately 1.5'' above the 1" ball (to the bottom of the connection section of the plate).
hole pattern:
Various AMPS Hole Patterns
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:
0.26 lb
Questions & Answers
Have a Question?
-
What size screws are needed for the holes on this ball plate?
The most common screw sizes are #8, #10, M4 and M5 screws. However, if you are pairing this with any RAM® Holder, the holder will come with the necessary hardware to connect to your mount.
-
Can the ball be removed and mounted opposite of where the picture shows?
No, the ball is formed around a metal post that cannot be moved.
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Is there a drawing for this? Looking for something that has holes 2" apart on center.
RAM offers the RAM-B-202U-2525 which has a square hole pattern 2" x 2", but that hole spacing is not included in the RAM-B-152BU.