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ACL Bearings 5M1186H-.25 Race Series Main Bearings 0.25mm Undersize

Manufacturer

Part Number

5M1186H-.25
Sale Price

$104.91

Estimated ship date Monday, November 23

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

ACL Race Series main bearings are engineered for high-performance and racing applications where durability and precision are critical. The 5M1186H-.25 bearings feature a 0.25mm undersize dimension, designed for engines with crankshaft journals that have been machined undersize during rebuilding or performance preparation.

Key Features:

  • Race Series construction with high-strength materials for extreme performance applications
  • 0.25mm undersize for use with machined crankshafts
  • Tri-metal construction with increased fatigue resistance
  • Enhanced oil retention design for improved lubrication under high loads
  • Precision tolerance manufacturing for optimal bearing crush and oil clearance
  • Suitable for high-RPM and forced induction engines

ACL Race Series bearings are a popular choice among engine builders and racers who demand reliability under extreme conditions. These main bearings provide the foundation for a strong rotating assembly in performance engine builds.

Products specifications

Max Overall Length

0.827" (21.00mm) w/ 1186H/HX 1.000" (25.40mm) w/ 1187H/HX Flange

Max Std Shaft Size

2.2441" (57.000mm)

Max Std Tunnel Size

2.4024" (61.021mm)

Max Wall at Crown

0.0783" (1.990mm)

Min Std Shaft Size

2.2435" (56.985mm)

Min Std Tunnel Size

2.4016" (61.000mm)

Oil Clearance

Standard

Size

.25

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