RAM® Ball Adapter for RAM® X-Grip® - B Size

Part#: RAM-HOL-UN7-BALLU
UPC: 793442933448

Compatibility

Kit Components
$10.49

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size — this product 1" ball
  • C Size 1.5" ball
  • D Size 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
B — this product1" (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
D2.25" (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 RAM-HOL-UN7-BALLU consists of a 1" diameter rubber ball and hardware for attaching to the back of the RAM-HOL-UN7U cradle.

hardware included:

(1) #10-24 x 3" Machine Screw
(1) #10-24 Nyloc Nut

ball size:

B Size (1")

weight capacity:

Standard Use: 2 lbs
Heavy-Duty Use: 1 lb

materials:

High strength composite

packaging type:

Poly Bag

Weight:

0.07 lb

Additional Information:

This ball will only connect to versions of the RAM® X-Grip® with the male pin-lock pattern. Not compatible with X-Grip® with ball (RAM-HOL-UN7BU).

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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Documents

Knowledge Base: Ball Sizes

QUESTIONS & ANSWERS

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  • Hello, I would like to know what the size of the base/hardware is?

    The base has a diameter of 1.25" and the bolt is a #10-24 x 3" screw.
RAM® Ball Adapter for RAM® X-Grip® - B Size
$10.49