Greenlee 3036AVBB Round Ball Bearing Nut 3-3/4 in

Product Description

The GREENLEE 3036AVBB is a round ball bearing nut designed for use with knockout punch units in electrical and conduit work. It serves as the threaded drive component that applies clamping force through the punch cycle, reducing friction and operator effort during hole-making operations. The nut accommodates a punch hole diameter of 3-3/4 inches (95.30 mm) and a hole length of 28.6 mm. Licensed electricians and electrical contractors rely on this type of component to maintain punch unit performance and extend tool service life when the original bearing nut shows wear.

This ball bearing nut is suited for use with compatible Greenlee knockout punch units used in residential, commercial, and industrial electrical installations. Typical applications include punching clean, round holes in electrical enclosures, junction boxes, switchgear panels, and conduit bodies. It is most often used by journeyman and master electricians performing panel work or enclosure fabrication where precise, burr-free knockout holes are required.

Key Features

• Round profile ball bearing nut designed specifically for knockout punch unit assemblies
• Punch hole diameter of 3-3/4 inches (95.30 mm) for large-diameter knockout applications
• Hole length of 28.6 mm providing proper thread engagement depth
• Ball bearing design reduces rotational friction during the punch drive cycle
• Sold individually as a direct replacement component

Compatibility

Designed for use with Greenlee punch units requiring a round ball bearing nut with a 3-3/4 inch punch hole diameter. Verify punch unit model compatibility before ordering.

Installation Notes

Installation should be performed by a qualified electrician familiar with knockout punch tool assembly and maintenance. Disconnect and de-energize all hydraulic or manual drive equipment before disassembling the punch unit to replace this component. Ensure threads are clean and free of debris before seating the bearing nut to avoid cross-threading or premature wear. Follow the punch unit manufacturer's assembly instructions for proper torque and component seating procedures.