PG 51S

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Welding and Mounting Procedure for Clamp Style Swing Gate Hinges

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Welding and Mounting Procedure for Clamp Style Swing Gate Hinges

The following is a set of instructions for welding and mounting clamp style hinges for a swing gate. The products used are available from our Rolling Center site, and the links are listed below.

Top Hinge (PG 51 S) Fabrication and Attachment

  • Weld PG 51 S to the post
    • Position the PG 51 S at the required elevation on the post.
    • Weld the PG 51 S to the post.
  • Add gussets for reinforcement
    • Fit triangular gussets between the PG 51 S and the post.
    • Weld gussets fully to provide stiffness and load distribution.
  • Attach the internal knuckle/bearing to a gate mounting plate
    • The internal knuckle element inside the PG 51 S bearing is welded onto a plate.
    • Weld the knuckle element to the plate.
  • Weld the plate to the gate
    • Align the plate (with the welded knuckle element) to the swing gate hinge location.
    • Weld the plate securely to the gate.

Bottom Hinge (PG 50 I) Fabrication and Attachment

  1. Weld the cap to the bottom of the gate
    • Position the PG 50 I bottom cap at the bottom hinge location on the gate.
    • Weld the cap to the bottom of the gate.
  2. Secure the internal bearing into the base plate
    • The PG 50 I internal bearing is installed into the base plate.
    • The bearing is tapped into the base plate and screwed in.
  3. Use the internal access hole for fastening
    • The PG 50 I includes an internal hole that provides access to perform the tapping/screwing operation.
    • Confirm the bearing is fully seated and secured through this access.

Clamp-Style Hinge Configuration (System-Level Requirement)

  • The hinge set functions as a clamp-style hinge assembly.
  • The top and bottom hinge components must be clamped and mounted to each other (top-to-bottom alignment maintained) to achieve:
    • Proper hinging action
    • Correct spacing between components
    • Stable alignment of the swing gate during operation.

Installation Notes and Alignment Considerations

  • Maintain consistent alignment between PG 51 S (top) and PG 50 I (bottom) during fit-up.
  • Treat the hinge pair as an interdependent set: incorrect spacing or misalignment between top and bottom clamp elements can affect hinge performance.
  • Confirm weld placement does not interfere with clamp engagement or bearing movement.

Components

Rolling Center
https://rollingcenter.com.au/

Bottom Hinge : PG 50 I
Top Hinge: PG 51 S 

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