Description
Overview:
The Spiral Bevel Gear 9 is a precision drive gear for Makita HR2811F and HR2811FT rotary hammer drills. It transfers power at a right angle from the motor to the output, keeping impact and rotation functions smooth under load. Made from hardened steel with a precision-machined tooth profile, it is built to handle high torque and shock loads typical of masonry and concrete drilling. This is a Genuine Makita part (MPN: 227532-4), ensuring the correct fit and mesh with the mating pinion for reliable performance. Use it to replace a worn or damaged gear and restore efficient, quiet operation. Suitable for trades and DIY users who need dependable uptime and consistent drilling performance from their Makita hammer drill.
Key Features:
- Genuine Makita replacement part for assured compatibility and fit (MPN: 227532-4)
- Hardened steel construction for long service life under heavy-duty use
- Accurate spiral bevel tooth form for smooth, efficient torque transfer
- Helps restore drilling performance, reduce noise, and limit vibration
- Designed for correct alignment and reliable engagement with the mating gear
- Supports both rotation and hammer action functions when installed correctly
- OEM-quality tolerances reduce wear on bearings and adjacent components
- Suitable for preventative maintenance or repair after tooth wear or chipping
- Typically a straightforward swap with standard workshop tools and care
- Backed by Makita's engineering standards for durability and consistency
Typical Applications:
Replacing a worn, chipped, or noisy drive gear in a Makita rotary hammer to restore smooth power transmission. Commonly required after prolonged site work, heavy drilling into concrete or masonry, or when excessive play or grinding is noticed in the gearbox. Ideal for routine overhaul to keep the tool productive.
Also known as:
Bevel gear, spiral drive gear, hammer drill drive gear, transmission gear, angle drive gear, gear 9, replacement gear for gearbox assembly.
Fits Models:
HR2811F, HR2811FT
Alternate Part Numbers:
2275324
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