RAM® Tough-Ball™ with 1/4"-28 x .25" Threaded Stud - B Size
Ball Base Information
"RAM" Prefix Code
To provide lightweight strength and corrosion resistance, RAM is made of marine grade Aluminium with a black powder coated finish, stainless steel hardware and 'rubber balls' - 'RAM' products are stiffer and stronger than their 'RAP' variants and typically used in more rugged applications.
"RAP" Prefix Code
Many of our 'RAM' products are available in a 'RAP' - composite variant. Our composite 'RAP' products are generally designed for lighter duty applications where keeping the weight of the mount low is a priority.
RAM® BALL SIZES
The weight limits below are a guide only. All factors in a planned mounting configuration should be considered to choose the most suitable ball size.
The most common ball size applications:
B Size - Action Cameras, Phones and Small Tablets
C Size - Medium - Large Tablets in Heavier Duty Applications
D Size - Heavy and Rugged Tablets and Laptops in Commercial Applications
Please check with our technical team for advice.
The RAP-B-379U-252825 consists of a 1" diameter rubber ball, connected to a 1/4"-28 X .25" male threaded post. The male thread matches most standard camera and camcorder female threads found on the bottom of the camera.
thread pitch
1/4"-28 x .25"
ball size
B Size (1")
weight capacity
Standard Use: 2 lbs
Heavy-Duty Use: 1 lb
materials
High strength composite
Stainless steel threads
packaging type
Poly Bag
Weight
0.036 kg