Connecting Rod Bearings

💎 Downhole Drilling Heavy-Duty Connecting Rod Bearings for Elephant CBW-Series Mud Pumps

The Connecting Rod Bearing, located at the large end of the connecting rod (the crankpin journal), endures the highest shock and cyclic load in the power end of the CBW-Series Triplex Pump. Failure of this bearing is the number one cause of catastrophic damage to the crankshaft and connecting rod. Our CR Bearings are sourced from specialized manufacturers, built to withstand the extreme radial forces and continuous operation required by Horizontal Directional Drilling (HDD) applications. Invest in a certified, high-quality bearing to secure the integrity of your CBW-Series power end and minimize expensive, unplanned downtime.

Key Features & Benefits:

High Load Capacity: Typically, a Cylindrical Roller Bearing (CRB) or Spherical Roller Bearing (SRB) design, specifically chosen for high radial load applications common in reciprocating pumps.
Precision Rolling Elements: Engineered with high-quality steel rollers to distribute load evenly and reduce friction, preventing premature wear and overheating.
Enhanced Cage Material: Features a robust cage (often machined brass or high-strength steel) designed to maintain roller spacing and integrity under shock loading and vibration.
Lubrication Optimized: Designed to work efficiently within the CBW-Series forced-feed/splash lubrication system, ensuring optimal oil film stability.
Elephant CBW-Series Fitment: Guaranteed dimensional interchangeability with the original CBW-Series crankpin bore and journal to ensure perfect seating and specified clearance.

CBW-800 Connecting Rod Bearing Specifications

Parameter	Detail	Note/Standard
Part Name	Connecting Rod Bearing (CR Bearing)	Also referred to as Eccentric Bearing.
Applicable Pump Model	Elephant (or equivalent) CBW-Series	Fits the large end of the connecting rod.
Bearing Type (Typical)	Single-Row Cylindrical Roller Bearing (CRB) or Spherical Roller Bearing (SRB)	SRB/CRB are common for high radial load.
OEM / Interchange Number	Supplier’s Specific Part Number	Critical for ordering. Must match pump’s technical manual.
Material (Rings/Rollers)	High-Carbon Chrome Steel (e.g., GCr15 / 52100)	Ensures maximum hardness and wear resistance.
Cage Material	Machined Brass or High-Strength Steel	Essential for performance under shock load.
Inner Diameter (ID)	Specific Dimension (Cranks haft Journal Size)	Must match the CBW-Series crankpin diameter.
Outer Diameter (OD)	Specific Dimension (Connecting Rod Bore Size)	Must match the CBW- Series connecting rod bore.
Width (B)	Specific Dimension	Determines axial fit and load distribution.
Radial Clearance (Internal)	C3 or C4 (Increased Clearance)	Essential for high-temperature/high-speed operation.
Standard	ISO, ABMA, or API Spec 7K Compliant	Quality and manufacturing standard.