Jet 822029 Backing Plate 4-1/2 Inch

Product Description

The JET 822029 is a backing plate designed for use with 4-1/2 inch angle grinders and disc sanders in the JET power tools lineup. Backing plates serve as the mounting interface between the grinder spindle and abrasive discs or pads, holding the abrasive flat and secure during surface preparation, grinding, and finishing operations. This replacement part is installed by machinists, fabricators, metalworkers, and general trade professionals who maintain JET portable power tools on the shop floor or jobsite.

The 822029 backing plate is suited for 4-1/2 inch disc applications on compatible JET angle grinders. It is a direct OEM replacement part, making it appropriate for restoring a worn or damaged tool to original operating condition. Typical use environments include metal fabrication shops, welding operations, and general industrial maintenance settings where JET power tools are part of the standard equipment inventory.

Key Features

• OEM JET replacement part for accurate fit and function
• Sized for 4-1/2 inch abrasive discs or sanding pads
• Mounts to grinder spindle to secure abrasive media during operation
• Restores tool to factory-spec performance when original plate is worn or damaged

Compatibility

Designed as an OEM replacement backing plate for JET 4-1/2 inch angle grinders and disc sanders. Refer to the tool model documentation or JET parts diagrams to confirm fitment for your specific unit.

Installation Notes

Disconnect and de-energize the power tool completely before replacing the backing plate. Follow the tool manufacturer service documentation for spindle thread direction, as grinder spindles commonly use left-hand threads to prevent loosening under load. Use the appropriate spanner wrench for the spindle nut rather than improvised tools. Inspect the spindle threads for damage before installing the new backing plate.

Technical Specifications

• Compatible Disc Size: 4-1/2 inches
• Part Type: Backing Plate

Standard Information

• Brand: JET
• Manufacturer Part Number: 822029