Products Description
ECHO CS-4510 Chainsaw Clutch Drum Needle Cage – Precision Clutch Bearing
OEM-Spec Needle Bearing for CS-4510 & Compatible Echo Chainsaws
This needle cage is a genuine ECHO spare part, designed to sit between the clutch drum and the crankshaft on the ECHO CS-4510 and compatible chainsaws. Its primary function is to enable the smooth rotation of the clutch drum by reducing friction, ensuring reliable clutch engagement and disengagement during operation . A worn or seized needle bearing can lead to chain movement at idle, noisy operation, and premature wear of the clutch drum. This direct replacement restores smooth clutch function and protects the crankshaft from damage.
Technical Profiles & Materials
OEM-Spec Precision Bearing – Manufactured to ECHO's exacting standards as a genuine spare part, this needle cage guarantees a perfect fit and reliable performance for the CS-4510 and a range of compatible models . This reduces friction and wear, enhancing the efficiency and lifespan of the clutch system .
Durable Construction – Crafted from robust materials to withstand the high RPM, heat, and vibration of professional chainsaw operation. Its durable design ensures longevity and consistent performance in demanding conditions, such as firewood cutting and storm cleanup .
Critical Clutch Component – The bearing supports the clutch drum's rotation on the crankshaft. A seized bearing will cause the clutch to bind, leading to chain drag and potential crankshaft damage. Replacement is essential for smooth engagement and to maintain the saw's reliability .
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | OEM Part No. (Primary) | 90081036202 |
| 2 | Alternate OEM Part Nos. | V555000140, 10001200310 / 10001212330 |
| 3 | Compatibility | ECHO CS-4510, CS-4010, CS-4310SX, CS-420ES, 451S |
| 4 | Also Compatible With | CS-4920, CS-5000, CS-510, CS-520, CS-530, CS-670, CS-680 & many more Echo models |
| 5 | Bearing Type | Ball bearing |
| 6 | Material | High-grade bearing steel |
| 7 | Function | Clutch drum support / friction reduction |
| 8 | Installation Position | Between clutch drum and crankshaft |
| 9 | Lubrication Required | High-temperature grease recommended during installation |
| 10 | Warranty | 5-year consumer / 1-year commercial (OEM) |
Products Application
Professional Arborist & Forestry Work
The ECHO CS-4510 is a professional-grade chainsaw with a 45.0cm³ engine delivering 2.3kW (3.1 HP) of power . The needle cage bearing is critical for maintaining smooth clutch engagement during demanding tasks such as felling, bucking, and firewood cutting, ensuring reliable power transfer and extending the service life of the clutch system.
Clutch System Overhaul & Maintenance
When servicing the clutch or replacing the clutch drum, the needle cage should be inspected and replaced if seized, worn, or if you detect noise or rough rotation. The bearing should be lubricated with high-temperature grease upon installation to ensure smooth operation and prevent premature failure . Replacement is a standard part of a comprehensive clutch system rebuild.
Preventative Maintenance for High-Hour Saws
For chainsaws used in regular commercial or heavy-duty applications, replacing the needle cage proactively when fitting a new clutch drum prevents premature wear of the new components. This low-cost component protects the expensive crankshaft and clutch drum from damage , maintaining the CS-4510's smooth, dependable power delivery.
Quality and Craftsmanship Details
Products Package
About Us
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FAQ
Q: How do I know if the needle cage on my CS-4510 needs replacing?
A: Symptoms include the chain spinning at idle, unusual grinding or rattling noises from the clutch area, a clutch drum that does not spin freely by hand, or the clutch failing to engage properly. When removed, a seized bearing will not make a rattling sound when shaken.
Q: Which OEM part number do I need for my CS-4510?
A: The CS-4510 uses several OEM numbers for this bearing. It is known as 90081036202, V555000140, and 10001200310 (which is superseded by 10001212330) . The 90081036202 bearing is a ball bearing (6202) specified for the CS-4510 engine .
Q: What else should I check when replacing the needle cage?
A: Always inspect the clutch drum's inner surface for wear or grooving. It is also good practice to check the sprocket for wear. Replacing the complete clutch drum assembly alongside the bearing ensures all components are renewed for optimal performance. The chain brake band must be correctly positioned around the clutch drum during reassembly .
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