Patented

RAM® Composite Double Socket Swivel & Ratchet Arm with No Center Knob

Part#: RAP-B-200-2NKU
UPC: 793442936975
$28.49

product dimensions:

Overall Length: 6.25"

socket to socket length:

5.5"

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:

0.39 lb

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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Knowledge Base: Socket Arms

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RAM® Composite Double Socket Swivel & Ratchet Arm with No Center Knob
$28.49

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.

Add-on & Accessories

Ball Bases - B Size 1" Ball
See All
RAM® Round Plate with Ball - B Size RAM-B-202U $11.49
RAM® Diamond Ball Base - B Size RAM-B-238U $9.99
RAM® Track Ball™ Base with T-Bolt Attachment - B Size RAP-B-354U-TRA1 $15.99
RAM® Twist-Lock™ Suction Cup Base with Ball RAM-B-224-1U $24.49
RAM® Tough-Claw™ Small Clamp Base with Ball RAP-B-400U $41.99
RAM® Flex Adhesive Ball Base RAP-B-378U $17.99
RAM® Handlebar U-Bolt Base for Rails 0.5" to 1.25" in Diameter - B Size RAM-B-231ZU $20.99
RAM® Tough-Claw™ Medium Clamp Base with Ball RAP-B-404U $48.99
RAM® Tough-Ball™ with 1/4"-20 x .50" Threaded Stud - B Size RAP-B-379U-252050 $11.49
RAM® Ball Base with 1.5" x 2.5" 4-Hole Pattern - B Size RAM-B-202U-23 $24.49
RAM® Tough-Claw™ Large Clamp Base with Ball RAP-B-401U $67.99
RAM® Torque™ Medium Rail Base - B Size RAM-B-408-75-1U $29.49
RAM® Stubby™ Cup Holder Ball Base RAP-B-299-4U $38.99
RAM® Torque™ Large Rail Base - B Size RAM-B-408-112-15U $29.99
RAM® Composite Round Plate with Ball - B Size RAP-B-202U $8.99
RAM® Ball Adapter with 1/4" - 20" Threaded Hole and Hex Post - B Size RAM-B-337U $10.49
RAM® 9mm Angled Bolt Head Adapter Ball Base RAM-B-272U $17.49
RAM® Ball Adapter with 1/4"-20 Threaded Post - B Size RAM-B-237U $11.99
RAM® Tough-Mag™ 66MM Diameter Magnetic Ball Base RAM-B-MAG66U $42.49
RAM® Motorcycle Handlebar Clamp Base with M8 Bolts RAM-B-367U $14.49
RAM® Torque™ Small Rail Base RAM-B-408-37-62U $28.99
RAM® Grab Handle & A-Pillar M6 Bolt Replacement Kit with Ball Base RAM-B-367B-M6U $18.99
RAM® Twist-Lock™ Composite Suction Cup Base with Ball RAP-B-224-1U $22.99
RAM® Ball Adapter Base for Grab Handles & Handlebar Clamps RAM-B-367BU $11.99
RAM® Universal Marine Electronic Ball - B Size RAM-B-111BU $19.49
RAM® Motorcycle Brake/Clutch Reservoir Ball Base RAM-B-309-1U $18.99
RAM® Diamond Ball Base with Mounting Hardware RAM-B-238U-INT1 $15.49
RAM® Ball Base with 1.5" 2-Hole Pattern - B Size RAM-B-202U-12 $15.49
RAM® Strap Hose Clamp Ball Base 1" - 2.1" RAM-B-108BU $25.49
RAM® Double Ball Adapter with Round Base - B Size RAM-B-217U $49.99
RAM® Yoke Clamp Base with Ball RAM-B-121BU $34.49
RAM® Twist-Lock™ Dual Suction Cup Base with Ball RAM-B-189B-202U $48.99
RAM® Motorcycle Fork Stem Ball Base with Rubber Expansion Plug RAM-B-342U $22.49
RAM® Ball Adapter with M10-1.25 Threaded Post - B Size RAM-B-349U $14.99
RAM® Magnetic Ball Base RAM-B-202-339U $34.99
RAM® Tough-Ball™ with M10-1.5 x 25mm Threaded Stud - B Size RAP-B-379U-M10-JD1 $14.99
RAM® Drill-Down Dashboard Ball Base with Backing Plate - B Size RAM-B-202-225-2U $22.49
RAM® Glare Shield Clamp Ball Base RAM-B-259U $33.99
RAM® Composite Ball Adapter with AMPS Plate RAP-B-347U $8.49
RAM® Tough-Ball™ with 1/4"-20 x .375" Threaded Stud - B Size RAP-B-379U-252037 $11.99
RAM® Tough-Ball™ with 1/4"-20 x .625" Threaded Stud - B Size RAP-B-379U-252062 $11.99
RAM® Composite Diamond Ball Base RAP-B-238U $8.49
RAM® Tough-Ball™ with M8-1.25 x 8mm Threaded Stud RAP-B-379U-M81208 $10.99
RAM® 11mm Bolt Head Adapter Ball Base RAM-B-252U $15.99
RAM® PVC Pipe Socket with Ball - B Size RAP-B-294U $9.49
RAM® Tough-Strap™ Handlebar Ball Base RAP-B-460U $26.99
RAM® Ball Adapter with 3/8"-16 Threaded Post & Lock Washer - B Size RAM-B-236U $12.99
RAM® Ball Adapter with M10-1.5 Threaded Post RAM-B-349-1U $14.99
RAM® Tough-Ball™ with M6-1 x 6mm Threaded Stud - B Size RAP-B-379U-M616 $10.99
RAM® Tough-Ball™ with 1/4"-20 x .50" Threaded Stud and Lock Washer RAP-B-379U-252050-SLW $11.99
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