What are the Measurements on a Bulldog Square Swivel Jack # BD190758

Published 10/09/2014

Question:

How long is the outer 2.50 x 2.50 tube? What wall thickness When in closed position, how much inner tubes protrudes from outer tube? How many holes and spacing in the leg, total length? What size round tubing is used for collar to attach jack to trailer, length? When you give the length of the outer tube, is that taking into account the top cap/crank mechanism I know its allot of questions but need to model this part so I can determine whether it will fit our desired application. Thank you so much.

asked by: Don S

Expert Reply:

I pulled the Bulldog square swivel jack # BD190758 from our warehouse to provide the measurements you requested.

The jack is 26-inches in overall length, not including the handle. The handle radius is 8-1/2 inches for your reference. If the foot base plate is removed the measurement of the entire square outer tube is 24-3/4 inches. The wall thickness of the square outer tube is 0.135-inches. When the outer square tube collar is in the retracted position with the foot included it's 3-inches from the base of the square tube to the bottom of the foot. If the base foot is removed the measurement below the outer square tubing is 2-1/2 inches.

On the drop leg of this jack there are 5 holes and the total length is 17-1/2 inches. The holes are 3-1/4 inches apart from the center of each hole.

The external length of the mounting collar that connects to the trailer is 2-1/2 inches. The outer diameter of the mounting collar tube is 3-inches,and the inner diameter is 2.52 inches, with a wall thickness of 0.235 inches. The inner diameter of the collar that installs on the mounting bracket is 2.07 inches. This uses a pin and clip that will allow the jack to swivel.

I have included a couple diagrams and some videos for you as well.

expert reply by: Chris B