Epiroc EC140T Lower Bush 3363 1055 55 | Premium Tool Guide by MERIT
The Lower Bush (Part No. 3363 1055 55) is a high-wear component critical to the performance of your Epiroc EC140Thydraulic breaker. It serves as the primary guide for the working tool (chisel), absorbing intense lateral forces and protecting the front head from structural damage. A precision-fitted bush is essential to ensure that every strike from the piston is centered, maximizing impact energy and preventing internal damage.
Merit manufactures this lower bushing using high-tensile alloy steel and advanced induction hardening processes. Our engineering ensures a level of wear resistance that meets the demands of the most aggressive demolition and quarrying environments.
Technical Specifications
| Feature | Details |
|---|---|
| Product Name | Lower Bush / Chisel Bushing / Bottom Bush |
| Part Number (P/N) | 3363 1055 55 |
| Compatible Model | Epiroc EC140T (Essential Case Series) |
| Material | Forged 42CrMo Alloy Steel |
| Hardness Level | 52-56 HRC (Induction Hardened) |
| Manufacturing | Precision CNC Machined |
Why Choose the Merit Lower Bush for Your EC140T?
Working in hard rock and reinforced concrete requires parts that don’t quit. The Merit lower bush provides:
1. Superior Abrasive Resistance
Through a specialized deep-hardening process, the inner surface of the bush becomes extremely resistant to the abrasive stone dust and debris common in demolition. This prevents the bushing from “ovalling” and maintains a tight grip on the tool for longer periods.
2. Perfect Piston Alignment
Precision is the enemy of failure. Our 3363 1055 55 bush is machined to exact OEM tolerances, ensuring the chisel remains perfectly centered. This prevents “angled hits,” which are the leading cause of piston scoring and cylinder failure in hydraulic hammers.
3. Enhanced Lubrication Flow
The internal geometry of the Merit bush is designed to facilitate the even distribution of chisel paste. Proper lubrication reduces frictional heat, preventing the chisel and the bush from seizing (galling) during continuous operation.
Maintenance Alert: Protect Your Hammer
The lower bush is a “sacrificial” part designed to wear out so that your expensive front head and piston don’t.
- Check Regularly: Measure the clearance between the chisel and the bush. If the gap exceeds the manufacturer’s limit, replace it immediately.
- Cost Savings: Replacing a bush 3363 1055 55 is a fraction of the cost of repairing a damaged piston or a cracked front head.
MERIT: Your Global Source for Epiroc Spare Parts
Based in Turkey, Merit is a trusted manufacturer of premium hydraulic breaker components. We combine heavy-duty metallurgy with competitive pricing and fast global shipping. Ensure your Epiroc EC140T operates at peak efficiency with Merit’s industrial-grade solutions.
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