Main & Connecting Rod Bearings – Precision Engine Components
Main and connecting rod bearings are critical components in internal combustion engines, supporting the crankshaft and connecting rods while reducing friction and wear. These precision-machined shells ensure proper oil clearance, load distribution, and durability under extreme operating conditions. At Hangzhou XC Machinery Co., Ltd., we specialize in manufacturing high-quality main and connecting rod bearings for heavy construction machinery, offering reliable replacements that meet or exceed OEM specifications.
What Are Main and Connecting Rod Bearings?
Main bearings sit in the engine block and support the crankshaft, while connecting rod bearings are located at the junction of the connecting rod and crankshaft. Both are typically split-shell bearings made from layered materials such as steel-backed aluminum or copper-lead alloys. They provide a low-friction surface, maintain oil film thickness, and absorb dynamic loads from combustion and rotational forces. Proper bearing selection and installation are vital for engine performance and longevity.
Our Product Range
We offer a comprehensive line of engine bearings designed for excavators, dozers, loaders, and other heavy equipment. Our catalog includes:
- Main engine bearings
- Connecting rod bearings
- Thrust washers and components
- Complete bearing kits
- OEM replacement bearings
- Custom size bearings
- Bearing shell sets
- Engine rebuild kits
All products are manufactured to precise tolerances, ensuring proper fit and function for a wide range of engine models.
Key Strengths of Our Bearings
Our bearings are engineered for demanding applications. Key strengths include:
- High load capacity: Designed to withstand heavy radial and axial loads common in construction equipment.
- Superior wear resistance: Advanced metallurgy and surface treatments extend service life.
- Optimal oil clearance: Precision machining ensures correct oil film thickness for reduced friction and heat.
- Corrosion resistance: Protective layers resist degradation from engine oils and contaminants.
- Consistent quality: Each batch undergoes rigorous inspection to maintain dimensional accuracy.
Applications and Compatibility
Our main and connecting rod bearings are used in engines for:
- Excavators
- Bulldozers
- Wheel loaders
- Forklifts
- Agricultural machinery
- Industrial generators
We supply bearings compatible with leading brands such as CATERPILLAR, KOMATSU, VOLVO, HITACHI, DEUTZ, ISUZU, CUMMINS, and KUBOTA. Whether you need a single bearing or a full engine rebuild kit, we can provide the right solution.
Buyer Notes
When selecting main and connecting rod bearings, consider the following:
- Engine model and year: Ensure the bearing part number matches your engine specifications.
- Bearing size: Standard and undersized bearings are available for reconditioned crankshafts.
- Material grade: Choose the appropriate material based on load and operating conditions.
- Kit contents: Verify that kits include all necessary shells, washers, and shims.
For custom requirements, we offer made-to-order bearings to meet specific dimensions and performance criteria.
How to Inquire
To request a quote or discuss your bearing needs, contact our sales team:
- Tel/WhatsApp: +86 18758866446
- Email: robin@xcgparts.com
- Address: Juye Road, BinJiang District, HangZhou City, Zhejiang Province, China
Visit our website at www.xcgparts.com to explore our full product range. We welcome inquiries from distributors, workshops, and equipment owners worldwide.
