Description
Overview:
This Genuine Needle Bearing is an OEM component for Atlas Copco handheld breakers, built to support rotating parts with minimal friction. Manufactured in hardened steel for strength and wear resistance, it is designed specifically for the Cobra TT and Cobra Mk1 models. In the percussion and drive assemblies of these petrol-powered breakers, the bearing carries high loads in a compact space, helping the machine run smoothly under sustained site use. As an authentic Atlas Copco part, it maintains correct tolerances and geometry for reliable alignment, reduced heat build-up, and longer service life. Fitted during routine maintenance or rebuilds, it helps restore performance and protects adjoining components such as shafts and housings from premature wear.
Key Features:
- Genuine Atlas Copco part for assured compatibility and performance
- Hardened steel construction for high load capacity and long service life
- Supports rotational movement and lowers friction to improve efficiency
- Maintains correct clearances to protect shafts and housings from wear
- Stable running under impact and vibration typical of breaker use
- Compact form factor ideal where radial space is limited
- Helps reduce heat build-up and energy loss in the mechanism
- Suitable for routine service, overhaul, or like-for-like replacement
- Consistent quality control to OEM specification
Typical Applications:
Used in the rotating sections of Atlas Copco Cobra TT and Cobra Mk1 breakers during servicing or repair. Common in rebuilds of striker, clutch, or drive assemblies to restore smooth rotation, reduce vibration, and maintain impact performance on jobs such as fencing, post driving, roadwork patching, utilities excavation, and light demolition.
Also known as:
Needle roller assembly, needle cage, caged needle unit, anti-friction roller unit, needle bush, roller element unit, needle sleeve, precision needle set. These terms are often used in parts lists and service manuals for compact high-load radial bearings in handheld breakers and similar machinery.
Fits Models:
Cobra TT, Cobra Mk1
Alternate Part Numbers:
4090036900, 4090 0369 00
Product Specifications
| L&S Part No. | 4090 0369 00 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Atlas Copco |
| OEM No. | 4090036900 |
| Unit of Sale | 1 |
| Machine Type | Breakers |
| Fits Brands | Atlas Copco |
| Key Features | - Genuine Atlas Copco part ensures compatibility with Cobra TT and Mk1 - Hardened steel construction for high load capacity - Supports rotational movement, reducing friction and improving efficiency - Maintains correct clearances to protect shafts and housings - Compact form factor suitable for limited radial space applications |
| Fits Models | Cobra TT |
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