Description
Overview:
The Makita Crank Shaft HMJ1812 (OEM 310618-2) is a genuine replacement part for Makita construction and garden machinery. Made from robust, high-grade steel and precision machined, it forms a key part of the drive mechanism by converting motion within the tool's power train to deliver reliable output. This crank shaft helps maintain correct timing and smooth operation in heavy-duty equipment, supporting components such as pistons and impact systems in demolition hammers, breakers, and other powered tools. As a Genuine Makita part, it offers the right geometry and fit to match Makita housings and bearings, helping to restore factory performance and extend tool life. Ideal for professional use and DIY maintenance, the HMJ1812 crank shaft keeps your equipment dependable on site and at home.
Key Features:
- Genuine Makita part for assured compatibility and correct fit (OEM 310618-2)
- Durable steel construction for strength, wear resistance, and long service life
- Precision manufacturing helps maintain smooth running and correct clearances
- Restores tool efficiency, impact energy, and consistent performance
- Designed for straightforward installation using standard workshop tools
- Direct replacement: no modifications required when used with the correct model
- Stable operation supports reduced vibration and improved reliability when maintained
- Clearly identifiable by Makita diagrams and parts lists for easy ordering
- Suitable for demanding trade environments and regular DIY maintenance
- Supports preventive maintenance schedules to minimise downtime
Typical Applications:
Commonly used in Makita demolition hammers, breakers, and other powered tools where a crank mechanism drives impact or reciprocating motion. Suitable when overhauling worn drive assemblies, addressing excessive play or noise, or restoring performance after heavy use, contamination, or inadequate lubrication. Useful for site tools in construction, landscaping, and general workshop equipment.
Also known as:
Eccentric shaft, drive shaft assembly, crank gear, motion converter shaft, main shaft, rotating drive element, hammer mechanism shaft, power train shaft, internal drive shaft, reciprocating drive shaft.
Product Specifications
| L&S Part No. | 310618-2 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 310618-2 |
| Unit of Sale | 1 |
| Fits Brands | Makita |
| Key Features | - Genuine Makita part ensures compatibility and correct fit - Durable steel construction for long service life - Precision manufacturing maintains smooth operation - Direct replacement requires no modifications - Suitable for Makita demolition hammers and breakers |
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