RAM Medium Yoke Clamp Diamond Plate Bundle (RAM-B-121-238U)

Included:

• 1 x RAM Yoke Clamp Base with B Size Ball (RAM-B-121BU)
• 1 x RAM Medium Double Socket Arm, B Size (RAM-B-201U)
• 1 x RAM Diamond Plate with B Size Ball (RAM-B-238U)

A yoke-clamp combination with a medium B size arm and diamond plate. The component selection matches the RAM-B-121-238U mechanical configuration, giving a 2-hole AMPS attachment for a compatible flat-backed holder.

When fitted to a rail, the clamp’s ball sits parallel to the rail, helping you check the arm’s starting position and clearance.

Holder and device are sold separately. Holder-side mounting screws are not included with this kit; check the selected holder’s supplied hardware.

Specifications

• Clamp Range: 0.625"–1.25" (15.88–31.75mm) diameter
• Ball/Socket Size: B Size, 1" (25.4mm)
• Arm Overall Length: 3.73" (94.7mm)
• Arm Socket-to-Socket Length: 3" (76.2mm)
• Diamond Plate: 2.43" x 1.31" (61.72 x 33.27mm)
• Holder-Side Pattern: 2-hole AMPS: 1.912" (48.56mm) centres
• Manufacturer Reference-Configuration Rating: 2 lb (0.91kg) standard use; 1 lb (0.45kg) heavy-duty use
• Materials: Powder-coated marine-grade aluminium
• Warranty: RAM components are covered by the manufacturer’s limited lifetime warranty terms.
• Hardware Included:
  • Clamp-base assembly hardware

Packaging may vary; all listed components are genuine RAM.

Help

The supplied diamond plate connects to a matching flat-backed 2-hole AMPS holder. A holder with a built-in 1" B size ball may attach directly to the arm without the upper plate.

Measure the actual yoke or rail geometry and check fit through the full operating range. For aircraft installations, check that the mounted holder/device leaves controls free to move and keeps instruments, switches and emergency access unobstructed. Clamp dimensions and a product listing do not constitute an installation or airworthiness approval.

RAM yoke-clamp drawing

Official component information: RAM-B-121-238U; RAM-B-121BU