SWIVEL BALL JOINT *** SOLD IN MULTIPLES OF 10 ***
The damper accessory swivel ball joint is used to connect the damper extension arm and the damper bracket assembly. It is sold in multiple quantities, usually a minimum of 10. The part number for a single joint is 7557750.
The genuine Johnson Controls, Inc. accessories are designed to replace the thermal expansion device on the following line of Dominion® Pro Series unitary air-cooled commercial rooftop units – ACC200, ACC300, ACC400, ACC405 and ACC500. The joint is designed as a replacement to the original door jam register that uses 2 aluminum swivel balls and one nylon joint. These parts are sold in multiples of 10 pieces.
The swivel ball joint allows the damper to swing away from the air outlet in a complete circle without hitting the frame, allowing the damper body to pivot downwards for access to the cyclone duct. It has two working positions; a stop bar is installed on some models to prevent ball joint from being rotated more than 90 degrees away from air discharge side of the furnace.
The DMPRKC300 is a swivel ball joint used to connect control dampers.
The Switchcraft/Johnson Controls Model No. 7557 Damper Accessory Swivel Ball Joint is a one-piece unballasted (2-position) aluminum alloy damper accessory swivel ball and was designed for use on Johnson Controls Damper Actuators, Type DMPRKC300 , 25 mm (0.98) or 1 in., Control, 24 VAC, 10 VA ...
The Johnson Controls 7557, Inc. DMPRKC300 control damper accessory swivel ball joint is a compatible replacement of the original semi-flexible polymer fluid line joints used in a wide variety of automotive applications. This type of swivel ball joint allows the coupler (part # 6416) to rotate 360 degrees and helps keep the fluid from returning to the pump. The part # 7557, Inc. swivel ball joint (also referred to as a U-joint or a free wheel joint) offers flexibility and ease of installation.
The Johnson Controls 7557, Inc. DMPRKC300 CONTROL DAMPER ACCESSORY SWIVEL BALL J is manufactured by Johnson Controls. The Johnson Controls 7557, Inc. DMPRKC300 CONTROL DAMPER ACCESSORY SWIVEL BALL J is made up of Acrylonitrile Butadiene Styrene (ABS).