SKF HM88547 Differential Pinion Bearing - Front Inner or Rear Outer

SKF Differential Pinion Bearing

SKF HM88547 is a tapered roller differential pinion bearing built for driveline service where smooth rotation and stable load handling matter. It is a direct-fit bearing for a wide range of classic Chevrolet and GMC applications, including Chevrolet Bel Air, Impala, and Corvette models.

Key Features

• Tapered roller bearing design for controlled load support in differential service
• Logarithmic roller raceway profile for smoother, quieter operation
• Ultra-smooth surface finish to reduce operating noise and friction
• Inside diameter: 1.313 in.
• Width: 1.156 in.
• Part number HM88547 for easy identification and ordering

Detailed Description

SKF HM88547 is engineered for differential pinion use in driveline and axle assemblies that require precise bearing support. SKF’s tapered roller bearing construction is used across a broad range of applications, and this bearing is specified for many Chevrolet and GMC rear outer and front inner positions, including Fits 1955-1964 Chevrolet Bel Air, rear outer; Fits 1959-1964 Chevrolet Impala, rear outer; and Fits 1956-1962 Chevrolet Corvette, rear outer. The bearing’s raceway profile and finished surface are intended to promote consistent operation under load while helping maintain quiet performance. This part cross-references Monroe Shocks & Struts (e.g., 1458HM88547, 193287H1) for the same application.

What It Is Used For

• Replacing a worn differential pinion bearing that causes noise or rough rotation
• Restoring stable bearing support in the axle and differential assembly
• Addressing driveline vibration related to bearing wear
• Correcting play or looseness in the pinion bearing area
• Reducing bearing noise during operation

Installation Notes and Tips

Verify axle and position details before installation, since fitment varies by model and axle configuration. This bearing is listed for rear outer and front inner applications across multiple Chevrolet and GMC vehicles, including notes for H033, H035, and FH030 axle configurations. Confirm the bearing dimensions, inside diameter, and width against the original part before assembly.

Quality Assurance

SKF has supplied bearing solutions for more than 100 years, and this part is manufactured to high quality standards for long service life and safety.