CAT 245-9914 CAP AS-MAIN

CAT 245-9914 is a Caterpillar original crankshaft main bearing cap assembly, which is compatible with high-power engines such as the C175-16. Its core function is to fix the main bearing, position the crankshaft and bear radial loads, ensuring stable operation of the crankshaft under high load conditions. The following is the core information:

Core Technical Parameters

Item Details
Part Model: CAT 245-9914 (Crankshaft Main Bearing Cap Assembly, Single Cylinder Position)

Material: High-strength ductile iron (GGG50), tensile strength ≥500MPa, yield strength ≥320MPa, hardness HB 190-250, excellent deformation resistance and vibration damping

Key Dimensions: Fitting main bearing inner diameter 120mm, bearing cap length 180mm, width 95mm, height 70mm, bolt hole diameter 16mm, locating pin hole diameter 10mm

Single Weight: Approx. 6.8kg (14.99 lbs)

Operating Parameters: Suitable temperature -40℃ to +200℃, maximum radial load 120kN, suitable engine speed ≤2200rpm

Core Features Ductile iron boasts high rigidity and excellent vibration damping. Positioning pins and bolt holes ensure assembly precision. Integrated sealing grooves and lubrication channels make it suitable for high-power engines operating under high load conditions.

Structure and Core Functions

High-Strength Ductile Iron Structure: GGG50 ductile iron combines high strength and toughness, making it suitable for the high-load conditions of high-power engines such as the C175-16, preventing bearing cap deformation or breakage.

Precise Positioning and Sealing Design: Positioning pin holes and cylinder block are precisely positioned to ensure coaxiality of the main bearing and crankshaft. Sealing grooves on the mating surfaces allow for the installation of gaskets to prevent oil leakage, while integrated lubrication channels ensure adequate lubrication of the main bearing.

Radial Load Bearing: Bears the radial load during crankshaft operation, fixes the main bearing, prevents main bearing displacement, controls main bearing clearance within the design range, and reduces crankshaft vibration and noise.

Cylinder Block Rigidity Reinforcement: After being fastened to the cylinder block, it enhances the rigidity of the main bearing housing area, preventing excessive deformation of the cylinder block due to crankshaft loads and ensuring the overall structural stability of the engine.

Compatible Models and Application Scenarios

Compatible Engines: CAT C175-16 high-power diesel engines, commonly used in generator sets, marine power, mining trucks, locomotives, etc.

Compatible Equipment: CAT 793F and 794 AC mining trucks, C175-16 marine generator sets, C175-16 locomotive engines, etc.

Core Purpose: Installed at the main bearing housing of the C175-16 engine cylinder block, it fixes the main bearing, positions the crankshaft, bears radial loads, and ensures the stability and reliability of the engine under high load and long-term operation.