Rohn BPL55G 55G Tower Bearing Plates

Secure Mounting Solution for 55G Tower Top Installations
The Rohn BPL55G Top Plate is designed to cap your 55G tower with a durable, pre-drilled mounting surface for thrust bearings. It’s the go-to component for professionals and hobbyists who need a reliable platform to mount rotating antenna systems at the top of a Rohn 55G tower. Whether you're installing directional antennas, rotators, or extended masts, this top plate ensures everything is aligned and supported properly.

Pre-Drilled to Fit Common Thrust Bearing Sizes
Precision-cut to accommodate both 2-inch and 3-inch O.D. thrust bearings, the BPL55G is ready to accept industry-standard components like Rohn TB3 and TB4 bearings. This eliminates the need for additional drilling or custom fabrication at the job site, simplifying the installation and ensuring long-term stability of the mast and antenna assembly.

Supports Rotating Mast and Antenna Systems
For antenna arrays that require directional adjustments, thrust bearings are a critical part of the system. The BPL55G top plate allows you to position those bearings exactly where you need them—at the highest structural point of the tower—enabling smooth mast rotation without putting strain on the tower frame.

Heavy-Duty Build with Corrosion Protection
Built from rugged steel and hot-dip galvanized, the BPL55G is made to withstand the outdoor elements. The zinc coating shields against rust and corrosion, making it ideal for long-term deployment in a range of environments—from coastal regions to mountaintop installations. This top plate offers lasting strength that holds up to wind, rain, and snow.

Compatible with Standard 55G Tower Sections
The BPL55G is engineered specifically for Rohn 55G tower sections, making it a perfect match in terms of both structural alignment and bolt-hole configuration. It mounts securely to the top of a standard 55G section, giving your tower a professional-grade finish that’s ready for complex antenna and rotor setups.

Streamlined Installations with No Modifications Required
Installation is straightforward—simply bolt the plate onto the top section of the tower and attach your bearing. The pre-drilled layout saves time and reduces labor, especially when coordinating multiple installs or replacing existing top plates. It’s a clean, efficient solution that delivers the performance tower professionals expect.