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

SKU Copied
SKU: RAM-B-273U
UPC Copied
UPC: 793442102738

RAM® Add-A-Ball™ Accessory Ball for B Size Socket Arms
Copy SKU
SKU: RAM-B-273U
Copy UPC
| UPC: 793442102738

B SIZE
Size Guide
Connect another device to your existing RAM Mount with the RAM-B-273U Ball Base Adapter. This ball is made up of a 2.54cm (1") ball connecting to a 1/4" -20 threaded stud with a length of 4.06cm (1.6") . The threads on this ball replace the bolt in any B-size socket arm, and the ball connects to the middle of the socket arm on the opposite side of the tightening knob. If you are looking to mount more than one device but cannot locate multiple mounting points on your motorcycle or vehicle, this base is the ideal accessory for connecting both devices off of one mounting base.

Features
  • Replace the bolt in any B size double socket arm to add another 2.54cm (1") B size RAM® rubber ball to your mounting setup
  • Included B size 2.54cm (1") RAM® rubber ball allows for connection to any B size RAM® double socket arm; ball and socket technology allows for near-infinite adjustability
  • Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments
  • Backed by a lifetime warranty

Information

Information

Product Weight
0.04 kg (0.09 lbs)
Hardware Included
(1) 1/4" -20 x 5.72cm (2.25") Set Screw
Ball Size
B Size (1")
Weight Capacity
Standard Use: 0.91 kg (2 lbs) Heavy-Duty Use: 0.45 kg (1 lbs)
Materials
Marine-grade aluminum
Packaging Type
Poly Bag
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Components

RAM Mounts
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RAM-B-337U
RAM® Ball Adapter with 1/4" - 20" Threaded Hole and Hex Post - B Size


Complete Your Solution

B Size Double Socket Arms

RAM Mounts
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RAM-B-201U-A
RAM® Double Socket Arm - B Size Short
RAM Mounts
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RAM-B-201U
RAM® Double Socket Arm - B Size Medium
RAM Mounts
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RAM-B-201U-C
RAM® Double Socket Arm - B Size Long
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