Description
CAT 103-9684 METAL CON-RO
| CAT 103-9684 METAL CON-RO |
| CAT 8E-3609 COVER BRG |
| CAT 3G-7698 TRUNNION |
| CAT 245-9914 CAP AS-MAIN |
| CAT 116-3501 SLEEVE |
| CAT 521-9961 BEARING-SEM |
| CAT 473-8301 ROLLER-GUIDE |
| CAT 3H-8363 RACE |
The CAT 103-9684 is not a metal control lever, but rather a Caterpillar original 3046 engine connecting rod bearing assembly (enlarged by 0.010 inches / 0.254mm), used to connect the engine connecting rod to the crankshaft, playing a crucial role in transmitting power and reducing friction. The following is key information.
Core Technical Parameters
Item Details
Part Model: CAT 103-9684 (Connecting Rod Bearing Assembly, 0.010 inch larger, suitable for 3046 engines, 6 pieces)
Material: Steel backing + high-tin aluminum alloy (AlSn40), with a polymer coating to improve wear resistance and anti-seize properties.
Key Dimensions: Inner diameter increased by 0.010 inches (0.254mm), suitable for crankshaft journal repair after wear; precise bearing thickness to ensure the clearance between the connecting rod and crankshaft.
Quantity per Set: 6 pieces (suitable for 6-cylinder engines, 1 connecting rod bearing per cylinder)
Weight per Set: Approximately 0.3 kg (0.66 lbs)
Key Features: High-tin aluminum alloy material, high load-bearing capacity; polymer coating reduces the coefficient of friction, suitable for high-load engine conditions.
Suitable Operating Conditions: Suitable for 3046 naturally aspirated/turbocharged engines, operating temperature -40℃ to… +150℃, suitable for construction machinery, generator sets, and other equipment.
Structure and Core Functions
Steel Backing + Alloy Coating Structure: The steel backing provides rigid support, the high-tin aluminum alloy layer ensures load-bearing capacity and wear resistance, and the polymer coating reduces dry friction during startup, preventing bearing and crankshaft damage.
Enlarged Size Design: For crankshaft journal wear repair scenarios, the size is increased by 0.010 inches to restore the fit clearance between the journal and bearing, avoiding abnormal noises and bearing failures caused by excessive clearance.
Precision Oil Groove Design: Oil grooves are provided on the bearing surface to ensure even distribution of lubricating oil, forming an oil film, reducing friction and wear, and extending the service life of the bearing and crankshaft.
Positioning and Anti-Rotation Structure: Positioning lips are provided at both ends of the bearing to prevent rotation during installation, ensuring assembly accuracy and preventing lubrication channel blockage.
Compatible Models and Application Scenarios
Compatible Engines: CAT 3046 naturally aspirated engines (serial number 5XK1-UP, etc.), 3046 turbocharged engines (serial number 5XK484-UP, etc.), corresponding engine layout numbers 107-2350, 115-4840, etc.
Compatible Equipment: CAT 315 tracked excavators, some loaders, generator sets, and other equipment using the 3046 engine.
Core Application: Used at the connection between the engine connecting rod and crankshaft, transmitting piston power to the crankshaft while reducing friction. Suitable for high-load, high-speed engine conditions, ensuring stable power transmission.
