ITM 5M1147-010 Main Bearing Set 0.010" Undersize

The ITM 5M1147-010 is a precision-engineered main bearing set designed for engine rebuilding and performance restoration. This set is manufactured to 0.010-inch undersize specifications, making it ideal for use with reground crankshafts where standard-size bearings are no longer suitable.

ITM Engine Components is a trusted name in the engine rebuilding industry, producing bearings that meet or exceed OEM dimensional tolerances and material standards. Each bearing in this set is precision-finished to ensure proper oil film clearance, consistent crush, and long service life.

Key Features:

• 0.010" Undersize — engineered for use with crankshafts ground 0.010" under standard diameter
• Precision-machined to OEM dimensional tolerances for proper fit and oil clearance
• High-quality bi-metal or tri-metal construction for durability and wear resistance
• Designed to maintain consistent crush and proper seating in the main bearing bores
• Complete set includes all main bearing shells required for the engine application
• Manufactured by ITM Engine Components, a recognized supplier to the professional engine rebuilding trade

This main bearing set is a critical component in any engine rebuild or crankshaft replacement service. Using the correct undersize bearing ensures proper oil pressure, reduced wear, and long-term engine reliability. Always verify crankshaft journal diameter with a micrometer before selecting bearing size.