Proto J4390B Bearing Separator Set 5 Piece

Product Description

The PROTO J4390B is a 5-piece bearing separator set designed for removing bearings, gears, and pressed-on components from shafts without damaging surrounding parts. The separators position behind the bearing race to allow a puller to apply direct, controlled extraction force. This set is suited for heavy-duty professional use in mechanical, industrial, and maintenance-of-way applications. At 27.5 pounds, the set is built for shop use where durability under load is a requirement. Technicians and mechanics working on motors, pumps, gearboxes, and drive assemblies will find this set a standard part of a bearing service kit.

The J4390B is appropriate for both bench and field use in industrial maintenance environments. It fits common bearing removal scenarios encountered in HVAC equipment, electrical motor service, pump repair, and general mechanical maintenance. The set provides multiple separator sizes to accommodate a range of shaft and bearing dimensions, reducing the need for individual piece purchases across different job types.

Key Features

• 5-piece set covers a range of bearing and shaft sizes in a single kit
• Separator design positions behind bearing race for direct extraction without shaft damage
• Heavy construction rated for high-load bearing removal tasks
• Compatible with standard bearing pullers for coordinated extraction setups
• 27.5-pound set weight reflects robust, commercial-grade material construction

Compatibility

Designed as a general-purpose bearing separator set suitable for use with standard jaw-style and slide-hammer bearing pullers in mechanical and industrial maintenance applications.

Installation Notes

Bearing separator sets should be installed by qualified mechanics or maintenance technicians familiar with shaft and bearing extraction procedures. Disconnect and lock out all power to the equipment before beginning any bearing removal work. Ensure the separator is fully seated behind the bearing race and that the puller is centered and square before applying extraction force. Do not use impact force to seat separators, as this may damage the bearing race or shaft surface.