Performance Eng REM-ZGNBRKIT REM ISF Micro-Polished Grand National Hub Bearing & Race Kit

The Performance Engineering & Manufacturing REM-ZGNBRKIT is an REM ISF® Micro-Polished Grand National Hub Bearing and Race Set designed for race cars running a Grand National (GN) style hub with a 2.5" ID bearing (BL610549). Each kit contains everything needed to service one wheel position — two tapered roller bearings and two matching races — all finished to a precision micro-polished surface that dramatically reduces drag and friction compared to standard bearing and race combinations.

Key Features:

• REM ISF® Isotropic Superfinish (ISF): Proprietary micro-polishing process creates an ultra-smooth bearing surface, lowering rolling resistance and reducing heat buildup under race conditions
• Complete One-Wheel Kit: Includes two (2) bearings and two (2) matching races — everything required to service one GN hub
• 2.5" ID Bearing: Fits GN hubs using the BL610549 bearing — a common spec for IMCA-type modified and asphalt late model race cars
• Reduced Friction & Drag: Micro-polished finish lowers frictional forces compared to standard ground-finish bearings, resulting in more efficient wheel rotation
• Lower Operating Temperatures: Smoother bearing surfaces reduce heat generation, extending component life
• Race-Proven Application: Commonly used in IMCA-type Modified and asphalt Late Model race cars

The REM-ZGNBRKIT is the ideal upgrade for competitors looking to reduce parasitic drag at the wheel hub and maximize hub free spin — two factors that can translate directly to on-track performance. Cross-reference bearing number: BL610549.